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JavaTM 2 Platform Std. Ed. v1.4.2 |
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A table of data representing a database result set, which is usually generated by executing a statement that queries the database.
A ResultSet object maintains a cursor pointing
to its current row of data. Initially the cursor is positioned
before the first row. The next method moves the
cursor to the next row, and because it returns false
when there are no more rows in the ResultSet object,
it can be used in a while loop to iterate through
the result set.
A default ResultSet object is not updatable and
has a cursor that moves forward only. Thus, you can
iterate through it only once and only from the first row to the
last row. It is possible to
produce ResultSet objects that are scrollable and/or
updatable. The following code fragment, in which con
is a valid Connection object, illustrates how to make
a result set that is scrollable and insensitive to updates by others, and
that is updatable. See ResultSet fields for other
options.
Statement stmt = con.createStatement(
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
ResultSet rs = stmt.executeQuery("SELECT a, b FROM TABLE2");
// rs will be scrollable, will not show changes made by others,
// and will be updatable
The ResultSet interface provides
getter methods (getBoolean, getLong, and so on)
for retrieving column values from the current row.
Values can be retrieved using either the index number of the
column or the name of the column. In general, using the
column index will be more efficient. Columns are numbered from 1.
For maximum portability, result set columns within each row should be
read in left-to-right order, and each column should be read only once.
For the getter methods, a JDBC driver attempts
to convert the underlying data to the Java type specified in the
getter method and returns a suitable Java value. The JDBC specification
has a table showing the allowable mappings from SQL types to Java types
that can be used by the ResultSet getter methods.
Column names used as input to getter methods are case insensitive. When a getter method is called with a column name and several columns have the same name, the value of the first matching column will be returned. The column name option is designed to be used when column names are used in the SQL query that generated the result set. For columns that are NOT explicitly named in the query, it is best to use column numbers. If column names are used, there is no way for the programmer to guarantee that they actually refer to the intended columns.
A set of updater methods were added to this interface in the JDBC 2.0 API (JavaTM 2 SDK, Standard Edition, version 1.2). The comments regarding parameters to the getter methods also apply to parameters to the updater methods.
The updater methods may be used in two ways:
ResultSet object, the cursor can be moved backwards
and forwards, to an absolute position, or to a position
relative to the current row.
The following code fragment updates the NAME column
in the fifth row of the ResultSet object
rs and then uses the method updateRow
to update the data source table from which rs was derived.
rs.absolute(5); // moves the cursor to the fifth row of rs
rs.updateString("NAME", "AINSWORTH"); // updates the
// NAME column of row 5 to be AINSWORTH
rs.updateRow(); // updates the row in the data source
ResultSet object has a special row associated with
it that serves as a staging area for building a row to be inserted.
The following code fragment moves the cursor to the insert row, builds
a three-column row, and inserts it into rs and into
the data source table using the method insertRow.
rs.moveToInsertRow(); // moves cursor to the insert row
rs.updateString(1, "AINSWORTH"); // updates the
// first column of the insert row to be AINSWORTH
rs.updateInt(2,35); // updates the second column to be 35
rs.updateBoolean(3, true); // updates the third column to true
rs.insertRow();
rs.moveToCurrentRow();
A ResultSet object is automatically closed when the
Statement object that
generated it is closed, re-executed, or used
to retrieve the next result from a sequence of multiple results.
The number, types and properties of a ResultSet
object's columns are provided by the ResulSetMetaData
object returned by the ResultSet.getMetaData method.
Statement.executeQuery(java.lang.String),
Statement.getResultSet(),
ResultSetMetaData| Field Summary | |
static int |
CLOSE_CURSORS_AT_COMMIT
The constant indicating that ResultSet objects should be
closed when the method Connection.commit is called. |
static int |
CONCUR_READ_ONLY
The constant indicating the concurrency mode for a ResultSet object that may NOT be updated. |
static int |
CONCUR_UPDATABLE
The constant indicating the concurrency mode for a ResultSet object that may be updated. |
static int |
FETCH_FORWARD
The constant indicating that the rows in a result set will be processed in a forward direction; first-to-last. |
static int |
FETCH_REVERSE
The constant indicating that the rows in a result set will be processed in a reverse direction; last-to-first. |
static int |
FETCH_UNKNOWN
The constant indicating that the order in which rows in a result set will be processed is unknown. |
static int |
HOLD_CURSORS_OVER_COMMIT
The constant indicating that ResultSet objects should not
be closed when the method Connection.commit is called. |
static int |
TYPE_FORWARD_ONLY
The constant indicating the type for a ResultSet object
whose cursor may move only forward. |
static int |
TYPE_SCROLL_INSENSITIVE
The constant indicating the type for a ResultSet object
that is scrollable but generally not sensitive to changes made by others. |
static int |
TYPE_SCROLL_SENSITIVE
The constant indicating the type for a ResultSet object
that is scrollable and generally sensitive to changes made by others. |
| Method Summary | |
boolean |
absolute(int row)
Moves the cursor to the given row number in this ResultSet object. |
void |
afterLast()
Moves the cursor to the end of this ResultSet object, just after the
last row. |
void |
beforeFirst()
Moves the cursor to the front of this ResultSet object, just before the
first row. |
void |
cancelRowUpdates()
Cancels the updates made to the current row in this ResultSet object. |
void |
clearWarnings()
Clears all warnings reported on this ResultSet object. |
void |
close()
Releases this ResultSet object's database and
JDBC resources immediately instead of waiting for
this to happen when it is automatically closed. |
void |
deleteRow()
Deletes the current row from this ResultSet object
and from the underlying database. |
int |
findColumn(String columnName)
Maps the given ResultSet column name to its
ResultSet column index. |
boolean |
first()
Moves the cursor to the first row in this ResultSet object. |
Array |
getArray(int i)
Retrieves the value of the designated column in the current row of this ResultSet object as an Array object
in the Java programming language. |
Array |
getArray(String colName)
Retrieves the value of the designated column in the current row of this ResultSet object as an Array object
in the Java programming language. |
InputStream |
getAsciiStream(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a stream of ASCII characters. |
InputStream |
getAsciiStream(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as a stream of
ASCII characters. |
BigDecimal |
getBigDecimal(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as a
java.math.BigDecimal with full precision. |
BigDecimal |
getBigDecimal(int columnIndex,
int scale)
Deprecated. |
BigDecimal |
getBigDecimal(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as a
java.math.BigDecimal with full precision. |
BigDecimal |
getBigDecimal(String columnName,
int scale)
Deprecated. |
InputStream |
getBinaryStream(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as a binary stream of
uninterpreted bytes. |
InputStream |
getBinaryStream(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as a stream of uninterpreted
bytes. |
Blob |
getBlob(int i)
Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object
in the Java programming language. |
Blob |
getBlob(String colName)
Retrieves the value of the designated column in the current row of this ResultSet object as a Blob object
in the Java programming language. |
boolean |
getBoolean(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a boolean in the Java programming language. |
boolean |
getBoolean(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a boolean in the Java programming language. |
byte |
getByte(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a byte in the Java programming language. |
byte |
getByte(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a byte in the Java programming language. |
byte[] |
getBytes(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a byte array in the Java programming language. |
byte[] |
getBytes(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a byte array in the Java programming language. |
Reader |
getCharacterStream(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as a
java.io.Reader object. |
Reader |
getCharacterStream(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as a
java.io.Reader object. |
Clob |
getClob(int i)
Retrieves the value of the designated column in the current row of this ResultSet object as a Clob object
in the Java programming language. |
Clob |
getClob(String colName)
Retrieves the value of the designated column in the current row of this ResultSet object as a Clob object
in the Java programming language. |
int |
getConcurrency()
Retrieves the concurrency mode of this ResultSet object. |
String |
getCursorName()
Retrieves the name of the SQL cursor used by this ResultSet
object. |
Date |
getDate(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a java.sql.Date object in the Java programming language. |
Date |
getDate(int columnIndex,
Calendar cal)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object
in the Java programming language. |
Date |
getDate(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a java.sql.Date object in the Java programming language. |
Date |
getDate(String columnName,
Calendar cal)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Date object
in the Java programming language. |
double |
getDouble(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a double in the Java programming language. |
double |
getDouble(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a double in the Java programming language. |
int |
getFetchDirection()
Retrieves the fetch direction for this ResultSet object. |
int |
getFetchSize()
Retrieves the fetch size for this ResultSet object. |
float |
getFloat(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a float in the Java programming language. |
float |
getFloat(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a float in the Java programming language. |
int |
getInt(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
an int in the Java programming language. |
int |
getInt(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
an int in the Java programming language. |
long |
getLong(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a long in the Java programming language. |
long |
getLong(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a long in the Java programming language. |
ResultSetMetaData |
getMetaData()
Retrieves the number, types and properties of this ResultSet object's columns. |
Object |
getObject(int columnIndex)
Gets the value of the designated column in the current row of this ResultSet object as
an Object in the Java programming language. |
Object |
getObject(int i,
Map map)
Retrieves the value of the designated column in the current row of this ResultSet object as an Object
in the Java programming language. |
Object |
getObject(String columnName)
Gets the value of the designated column in the current row of this ResultSet object as
an Object in the Java programming language. |
Object |
getObject(String colName,
Map map)
Retrieves the value of the designated column in the current row of this ResultSet object as an Object
in the Java programming language. |
Ref |
getRef(int i)
Retrieves the value of the designated column in the current row of this ResultSet object as a Ref object
in the Java programming language. |
Ref |
getRef(String colName)
Retrieves the value of the designated column in the current row of this ResultSet object as a Ref object
in the Java programming language. |
int |
getRow()
Retrieves the current row number. |
short |
getShort(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a short in the Java programming language. |
short |
getShort(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a short in the Java programming language. |
Statement |
getStatement()
Retrieves the Statement object that produced this
ResultSet object. |
String |
getString(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a String in the Java programming language. |
String |
getString(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a String in the Java programming language. |
Time |
getTime(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a java.sql.Time object in the Java programming language. |
Time |
getTime(int columnIndex,
Calendar cal)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object
in the Java programming language. |
Time |
getTime(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a java.sql.Time object in the Java programming language. |
Time |
getTime(String columnName,
Calendar cal)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Time object
in the Java programming language. |
Timestamp |
getTimestamp(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as
a java.sql.Timestamp object in the Java programming language. |
Timestamp |
getTimestamp(int columnIndex,
Calendar cal)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object
in the Java programming language. |
Timestamp |
getTimestamp(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as
a java.sql.Timestamp object. |
Timestamp |
getTimestamp(String columnName,
Calendar cal)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object
in the Java programming language. |
int |
getType()
Retrieves the type of this ResultSet object. |
InputStream |
getUnicodeStream(int columnIndex)
Deprecated. use getCharacterStream in place of
getUnicodeStream |
InputStream |
getUnicodeStream(String columnName)
Deprecated. use getCharacterStream instead |
URL |
getURL(int columnIndex)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.net.URL
object in the Java programming language. |
URL |
getURL(String columnName)
Retrieves the value of the designated column in the current row of this ResultSet object as a java.net.URL
object in the Java programming language. |
SQLWarning |
getWarnings()
Retrieves the first warning reported by calls on this ResultSet object. |
void |
insertRow()
Inserts the contents of the insert row into this ResultSet object and into the database. |
boolean |
isAfterLast()
Retrieves whether the cursor is after the last row in this ResultSet object. |
boolean |
isBeforeFirst()
Retrieves whether the cursor is before the first row in this ResultSet object. |
boolean |
isFirst()
Retrieves whether the cursor is on the first row of this ResultSet object. |
boolean |
isLast()
Retrieves whether the cursor is on the last row of this ResultSet object. |
boolean |
last()
Moves the cursor to the last row in this ResultSet object. |
void |
moveToCurrentRow()
Moves the cursor to the remembered cursor position, usually the current row. |
void |
moveToInsertRow()
Moves the cursor to the insert row. |
boolean |
next()
Moves the cursor down one row from its current position. |
boolean |
previous()
Moves the cursor to the previous row in this ResultSet object. |
void |
refreshRow()
Refreshes the current row with its most recent value in the database. |
boolean |
relative(int rows)
Moves the cursor a relative number of rows, either positive or negative. |
boolean |
rowDeleted()
Retrieves whether a row has been deleted. |
boolean |
rowInserted()
Retrieves whether the current row has had an insertion. |
boolean |
rowUpdated()
Retrieves whether the current row has been updated. |
void |
setFetchDirection(int direction)
Gives a hint as to the direction in which the rows in this ResultSet object will be processed. |
void |
setFetchSize(int rows)
Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for this ResultSet object. |
void |
updateArray(int columnIndex,
Array x)
Updates the designated column with a java.sql.Array value. |
void |
updateArray(String columnName,
Array x)
Updates the designated column with a java.sql.Array value. |
void |
updateAsciiStream(int columnIndex,
InputStream x,
int length)
Updates the designated column with an ascii stream value. |
void |
updateAsciiStream(String columnName,
InputStream x,
int length)
Updates the designated column with an ascii stream value. |
void |
updateBigDecimal(int columnIndex,
BigDecimal x)
Updates the designated column with a java.math.BigDecimal
value. |
void |
updateBigDecimal(String columnName,
BigDecimal x)
Updates the designated column with a java.sql.BigDecimal
value. |
void |
updateBinaryStream(int columnIndex,
InputStream x,
int length)
Updates the designated column with a binary stream value. |
void |
updateBinaryStream(String columnName,
InputStream x,
int length)
Updates the designated column with a binary stream value. |
void |
updateBlob(int columnIndex,
Blob x)
Updates the designated column with a java.sql.Blob value. |
void |
updateBlob(String columnName,
Blob x)
Updates the designated column with a java.sql.Blob value. |
void |
updateBoolean(int columnIndex,
boolean x)
Updates the designated column with a boolean value. |
void |
updateBoolean(String columnName,
boolean x)
Updates the designated column with a boolean value. |
void |
updateByte(int columnIndex,
byte x)
Updates the designated column with a byte value. |
void |
updateByte(String columnName,
byte x)
Updates the designated column with a byte value. |
void |
updateBytes(int columnIndex,
byte[] x)
Updates the designated column with a byte array value. |
void |
updateBytes(String columnName,
byte[] x)
Updates the designated column with a byte array value. |
void |
updateCharacterStream(int columnIndex,
Reader x,
int length)
Updates the designated column with a character stream value. |
void |
updateCharacterStream(String columnName,
Reader reader,
int length)
Updates the designated column with a character stream value. |
void |
updateClob(int columnIndex,
Clob x)
Updates the designated column with a java.sql.Clob value. |
void |
updateClob(String columnName,
Clob x)
Updates the designated column with a java.sql.Clob value. |
void |
updateDate(int columnIndex,
Date x)
Updates the designated column with a java.sql.Date value. |
void |
updateDate(String columnName,
Date x)
Updates the designated column with a java.sql.Date value. |
void |
updateDouble(int columnIndex,
double x)
Updates the designated column with a double value. |
void |
updateDouble(String columnName,
double x)
Updates the designated column with a double value. |
void |
updateFloat(int columnIndex,
float x)
Updates the designated column with a float value. |
void |
updateFloat(String columnName,
float x)
Updates the designated column with a float value. |
void |
updateInt(int columnIndex,
int x)
Updates the designated column with an int value. |
void |
updateInt(String columnName,
int x)
Updates the designated column with an int value. |
void |
updateLong(int columnIndex,
long x)
Updates the designated column with a long value. |
void |
updateLong(String columnName,
long x)
Updates the designated column with a long value. |
void |
updateNull(int columnIndex)
Gives a nullable column a null value. |
void |
updateNull(String columnName)
Updates the designated column with a null value. |
void |
updateObject(int columnIndex,
Object x)
Updates the designated column with an Object value. |
void |
updateObject(int columnIndex,
Object x,
int scale)
Updates the designated column with an Object value. |
void |
updateObject(String columnName,
Object x)
Updates the designated column with an Object value. |
void |
updateObject(String columnName,
Object x,
int scale)
Updates the designated column with an Object value. |
void |
updateRef(int columnIndex,
Ref x)
Updates the designated column with a java.sql.Ref value. |
void |
updateRef(String columnName,
Ref x)
Updates the designated column with a java.sql.Ref value. |
void |
updateRow()
Updates the underlying database with the new contents of the current row of this ResultSet object. |
void |
updateShort(int columnIndex,
short x)
Updates the designated column with a short value. |
void |
updateShort(String columnName,
short x)
Updates the designated column with a short value. |
void |
updateString(int columnIndex,
String x)
Updates the designated column with a String value. |
void |
updateString(String columnName,
String x)
Updates the designated column with a String value. |
void |
updateTime(int columnIndex,
Time x)
Updates the designated column with a java.sql.Time value. |
void |
updateTime(String columnName,
Time x)
Updates the designated column with a java.sql.Time value. |
void |
updateTimestamp(int columnIndex,
Timestamp x)
Updates the designated column with a java.sql.Timestamp
value. |
void |
updateTimestamp(String columnName,
Timestamp x)
Updates the designated column with a java.sql.Timestamp
value. |
boolean |
wasNull()
Reports whether the last column read had a value of SQL NULL. |
| Field Detail |
public static final int FETCH_FORWARD
setFetchDirection
as a hint to the driver, which the driver may ignore.
public static final int FETCH_REVERSE
setFetchDirection
as a hint to the driver, which the driver may ignore.
public static final int FETCH_UNKNOWN
setFetchDirection
as a hint to the driver, which the driver may ignore.
public static final int TYPE_FORWARD_ONLY
ResultSet object
whose cursor may move only forward.
public static final int TYPE_SCROLL_INSENSITIVE
ResultSet object
that is scrollable but generally not sensitive to changes made by others.
public static final int TYPE_SCROLL_SENSITIVE
ResultSet object
that is scrollable and generally sensitive to changes made by others.
public static final int CONCUR_READ_ONLY
ResultSet object that may NOT be updated.
public static final int CONCUR_UPDATABLE
ResultSet object that may be updated.
public static final int HOLD_CURSORS_OVER_COMMIT
ResultSet objects should not
be closed when the method Connection.commit is called.
public static final int CLOSE_CURSORS_AT_COMMIT
ResultSet objects should be
closed when the method Connection.commit is called.
| Method Detail |
public boolean next()
throws SQLException
ResultSet cursor is initially positioned
before the first row; the first call to the method
next makes the first row the current row; the
second call makes the second row the current row, and so on.
If an input stream is open for the current row, a call
to the method next will
implicitly close it. A ResultSet object's
warning chain is cleared when a new row is read.
true if the new current row is valid;
false if there are no more rows
SQLException - if a database access error occurs
public void close()
throws SQLException
ResultSet object's database and
JDBC resources immediately instead of waiting for
this to happen when it is automatically closed.
Note: A ResultSet object
is automatically closed by the
Statement object that generated it when
that Statement object is closed,
re-executed, or is used to retrieve the next result from a
sequence of multiple results. A ResultSet object
is also automatically closed when it is garbage collected.
SQLException - if a database access error occurs
public boolean wasNull()
throws SQLException
NULL.
Note that you must first call one of the getter methods
on a column to try to read its value and then call
the method wasNull to see if the value read was
SQL NULL.
true if the last column value read was SQL
NULL and false otherwise
SQLException - if a database access error occurs
public String getString(int columnIndex)
throws SQLException
ResultSet object as
a String in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is null
SQLException - if a database access error occurs
public boolean getBoolean(int columnIndex)
throws SQLException
ResultSet object as
a boolean in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is false
SQLException - if a database access error occurs
public byte getByte(int columnIndex)
throws SQLException
ResultSet object as
a byte in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is 0
SQLException - if a database access error occurs
public short getShort(int columnIndex)
throws SQLException
ResultSet object as
a short in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is 0
SQLException - if a database access error occurs
public int getInt(int columnIndex)
throws SQLException
ResultSet object as
an int in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is 0
SQLException - if a database access error occurs
public long getLong(int columnIndex)
throws SQLException
ResultSet object as
a long in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is 0
SQLException - if a database access error occurs
public float getFloat(int columnIndex)
throws SQLException
ResultSet object as
a float in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is 0
SQLException - if a database access error occurs
public double getDouble(int columnIndex)
throws SQLException
ResultSet object as
a double in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is 0
SQLException - if a database access error occurs
public BigDecimal getBigDecimal(int columnIndex,
int scale)
throws SQLException
ResultSet object as
a java.sql.BigDecimal in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...scale - the number of digits to the right of the decimal point
NULL, the
value returned is null
SQLException - if a database access error occurs
public byte[] getBytes(int columnIndex)
throws SQLException
ResultSet object as
a byte array in the Java programming language.
The bytes represent the raw values returned by the driver.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is null
SQLException - if a database access error occurs
public Date getDate(int columnIndex)
throws SQLException
ResultSet object as
a java.sql.Date object in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is null
SQLException - if a database access error occurs
public Time getTime(int columnIndex)
throws SQLException
ResultSet object as
a java.sql.Time object in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is null
SQLException - if a database access error occurs
public Timestamp getTimestamp(int columnIndex)
throws SQLException
ResultSet object as
a java.sql.Timestamp object in the Java programming language.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is null
SQLException - if a database access error occurs
public InputStream getAsciiStream(int columnIndex)
throws SQLException
ResultSet object as
a stream of ASCII characters. The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large Note: All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a getter method implicitly closes the stream. Also, a
stream may return 0 when the method
InputStream.available
is called whether there is data available or not.
columnIndex - the first column is 1, the second is 2, ...
NULL, the
value returned is null
SQLException - if a database access error occurs
public InputStream getUnicodeStream(int columnIndex)
throws SQLException
getCharacterStream in place of
getUnicodeStream
ResultSet object as
as a stream of two-byte Unicode characters. The first byte is
the high byte; the second byte is the low byte.
The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large LONGVARCHARvalues. The
JDBC driver will do any necessary conversion from the database
format into Unicode.
Note: All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a getter method implicitly closes the stream.
Also, a stream may return 0 when the method
InputStream.available
is called, whether there is data available or not.
columnIndex - the first column is 1, the second is 2, ...
NULL, the value returned is
null
SQLException - if a database access error occurs
public InputStream getBinaryStream(int columnIndex)
throws SQLException
ResultSet object as a binary stream of
uninterpreted bytes. The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large LONGVARBINARY values.
Note: All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a getter method implicitly closes the stream. Also, a
stream may return 0 when the method
InputStream.available
is called whether there is data available or not.
columnIndex - the first column is 1, the second is 2, ...
NULL, the value returned is
null
SQLException - if a database access error occurs
public String getString(String columnName)
throws SQLException
ResultSet object as
a String in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is null
SQLException - if a database access error occurs
public boolean getBoolean(String columnName)
throws SQLException
ResultSet object as
a boolean in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is false
SQLException - if a database access error occurs
public byte getByte(String columnName)
throws SQLException
ResultSet object as
a byte in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is 0
SQLException - if a database access error occurs
public short getShort(String columnName)
throws SQLException
ResultSet object as
a short in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is 0
SQLException - if a database access error occurs
public int getInt(String columnName)
throws SQLException
ResultSet object as
an int in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is 0
SQLException - if a database access error occurs
public long getLong(String columnName)
throws SQLException
ResultSet object as
a long in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is 0
SQLException - if a database access error occurs
public float getFloat(String columnName)
throws SQLException
ResultSet object as
a float in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is 0
SQLException - if a database access error occurs
public double getDouble(String columnName)
throws SQLException
ResultSet object as
a double in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is 0
SQLException - if a database access error occurs
public BigDecimal getBigDecimal(String columnName,
int scale)
throws SQLException
ResultSet object as
a java.math.BigDecimal in the Java programming language.
columnName - the SQL name of the columnscale - the number of digits to the right of the decimal point
NULL, the
value returned is null
SQLException - if a database access error occurs
public byte[] getBytes(String columnName)
throws SQLException
ResultSet object as
a byte array in the Java programming language.
The bytes represent the raw values returned by the driver.
columnName - the SQL name of the column
NULL, the
value returned is null
SQLException - if a database access error occurs
public Date getDate(String columnName)
throws SQLException
ResultSet object as
a java.sql.Date object in the Java programming language.
columnName - the SQL name of the column
NULL, the
value returned is null
SQLException - if a database access error occurs
public Time getTime(String columnName)
throws SQLException
ResultSet object as
a java.sql.Time object in the Java programming language.
columnName - the SQL name of the column
NULL,
the value returned is null
SQLException - if a database access error occurs
public Timestamp getTimestamp(String columnName)
throws SQLException
ResultSet object as
a java.sql.Timestamp object.
columnName - the SQL name of the column
NULL, the
value returned is null
SQLException - if a database access error occurs
public InputStream getAsciiStream(String columnName)
throws SQLException
ResultSet object as a stream of
ASCII characters. The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large LONGVARCHAR values.
The JDBC driver will
do any necessary conversion from the database format into ASCII.
Note: All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a getter method implicitly closes the stream. Also, a
stream may return 0 when the method available
is called whether there is data available or not.
columnName - the SQL name of the column
NULL,
the value returned is null.
SQLException - if a database access error occurs
public InputStream getUnicodeStream(String columnName)
throws SQLException
getCharacterStream instead
ResultSet object as a stream of two-byte
Unicode characters. The first byte is the high byte; the second
byte is the low byte.
The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large LONGVARCHAR values.
The JDBC technology-enabled driver will
do any necessary conversion from the database format into Unicode.
Note: All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a getter method implicitly closes the stream.
Also, a stream may return 0 when the method
InputStream.available is called, whether there
is data available or not.
columnName - the SQL name of the column
NULL, the value returned
is null.
SQLException - if a database access error occurs
public InputStream getBinaryStream(String columnName)
throws SQLException
ResultSet object as a stream of uninterpreted
bytes.
The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large LONGVARBINARY
values.
Note: All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a getter method implicitly closes the stream. Also, a
stream may return 0 when the method available
is called whether there is data available or not.
columnName - the SQL name of the column
NULL, the result is null
SQLException - if a database access error occurs
public SQLWarning getWarnings()
throws SQLException
ResultSet object.
Subsequent warnings on this ResultSet object
will be chained to the SQLWarning object that
this method returns.
The warning chain is automatically cleared each time a new
row is read. This method may not be called on a ResultSet
object that has been closed; doing so will cause an
SQLException to be thrown.
Note: This warning chain only covers warnings caused
by ResultSet methods. Any warning caused by
Statement methods
(such as reading OUT parameters) will be chained on the
Statement object.
SQLWarning object reported or
null if there are none
SQLException - if a database access error occurs or this method is
called on a closed result set
public void clearWarnings()
throws SQLException
ResultSet object.
After this method is called, the method getWarnings
returns null until a new warning is
reported for this ResultSet object.
SQLException - if a database access error occurs
public String getCursorName()
throws SQLException
ResultSet
object.
In SQL, a result table is retrieved through a cursor that is
named. The current row of a result set can be updated or deleted
using a positioned update/delete statement that references the
cursor name. To insure that the cursor has the proper isolation
level to support update, the cursor's SELECT statement
should be of the form SELECT FOR UPDATE. If
FOR UPDATE is omitted, the positioned updates may fail.
The JDBC API supports this SQL feature by providing the name of the
SQL cursor used by a ResultSet object.
The current row of a ResultSet object
is also the current row of this SQL cursor.
Note: If positioned update is not supported, a
SQLException is thrown.
ResultSet object's cursor
SQLException - if a database access error occurs
public ResultSetMetaData getMetaData()
throws SQLException
ResultSet object's columns.
ResultSet object's columns
SQLException - if a database access error occurs
public Object getObject(int columnIndex)
throws SQLException
Gets the value of the designated column in the current row
of this ResultSet object as
an Object in the Java programming language.
This method will return the value of the given column as a
Java object. The type of the Java object will be the default
Java object type corresponding to the column's SQL type,
following the mapping for built-in types specified in the JDBC
specification. If the value is an SQL NULL,
the driver returns a Java null.
This method may also be used to read database-specific
abstract data types.
In the JDBC 2.0 API, the behavior of method
getObject is extended to materialize
data of SQL user-defined types. When a column contains
a structured or distinct value, the behavior of this method is as
if it were a call to: getObject(columnIndex,
this.getStatement().getConnection().getTypeMap()).
columnIndex - the first column is 1, the second is 2, ...
java.lang.Object holding the column value
SQLException - if a database access error occurs
public Object getObject(String columnName)
throws SQLException
Gets the value of the designated column in the current row
of this ResultSet object as
an Object in the Java programming language.
This method will return the value of the given column as a
Java object. The type of the Java object will be the default
Java object type corresponding to the column's SQL type,
following the mapping for built-in types specified in the JDBC
specification. If the value is an SQL NULL,
the driver returns a Java null.
This method may also be used to read database-specific abstract data types.
In the JDBC 2.0 API, the behavior of the method
getObject is extended to materialize
data of SQL user-defined types. When a column contains
a structured or distinct value, the behavior of this method is as
if it were a call to: getObject(columnIndex,
this.getStatement().getConnection().getTypeMap()).
columnName - the SQL name of the column
java.lang.Object holding the column value
SQLException - if a database access error occurs
public int findColumn(String columnName)
throws SQLException
ResultSet column name to its
ResultSet column index.
columnName - the name of the column
SQLException - if the ResultSet object
does not contain columnName or a database access error occurs
public Reader getCharacterStream(int columnIndex)
throws SQLException
ResultSet object as a
java.io.Reader object.
columnIndex - the first column is 1, the second is 2, ...
java.io.Reader object that contains the column
value; if the value is SQL NULL, the value returned is
null in the Java programming language.
SQLException - if a database access error occurs
public Reader getCharacterStream(String columnName)
throws SQLException
ResultSet object as a
java.io.Reader object.
columnName - the name of the column
java.io.Reader object that contains the column
value; if the value is SQL NULL, the value returned is
null in the Java programming language
SQLException - if a database access error occurs
public BigDecimal getBigDecimal(int columnIndex)
throws SQLException
ResultSet object as a
java.math.BigDecimal with full precision.
columnIndex - the first column is 1, the second is 2, ...
NULL, the value returned is
null in the Java programming language.
SQLException - if a database access error occurs
public BigDecimal getBigDecimal(String columnName)
throws SQLException
ResultSet object as a
java.math.BigDecimal with full precision.
columnName - the column name
NULL, the value returned is
null in the Java programming language.
SQLException - if a database access error occurs
public boolean isBeforeFirst()
throws SQLException
ResultSet object.
true if the cursor is before the first row;
false if the cursor is at any other position or the
result set contains no rows
SQLException - if a database access error occurs
public boolean isAfterLast()
throws SQLException
ResultSet object.
true if the cursor is after the last row;
false if the cursor is at any other position or the
result set contains no rows
SQLException - if a database access error occurs
public boolean isFirst()
throws SQLException
ResultSet object.
true if the cursor is on the first row;
false otherwise
SQLException - if a database access error occurs
public boolean isLast()
throws SQLException
ResultSet object.
Note: Calling the method isLast may be expensive
because the JDBC driver
might need to fetch ahead one row in order to determine
whether the current row is the last row in the result set.
true if the cursor is on the last row;
false otherwise
SQLException - if a database access error occurs
public void beforeFirst()
throws SQLException
ResultSet object, just before the
first row. This method has no effect if the result set contains no rows.
SQLException - if a database access error
occurs or the result set type is TYPE_FORWARD_ONLY
public void afterLast()
throws SQLException
ResultSet object, just after the
last row. This method has no effect if the result set contains no rows.
SQLException - if a database access error
occurs or the result set type is TYPE_FORWARD_ONLY
public boolean first()
throws SQLException
ResultSet object.
true if the cursor is on a valid row;
false if there are no rows in the result set
SQLException - if a database access error
occurs or the result set type is TYPE_FORWARD_ONLY
public boolean last()
throws SQLException
ResultSet object.
true if the cursor is on a valid row;
false if there are no rows in the result set
SQLException - if a database access error
occurs or the result set type is TYPE_FORWARD_ONLY
public int getRow()
throws SQLException
0 if there is no current row
SQLException - if a database access error occurs
public boolean absolute(int row)
throws SQLException
ResultSet object.
If the row number is positive, the cursor moves to the given row number with respect to the beginning of the result set. The first row is row 1, the second is row 2, and so on.
If the given row number is negative, the cursor moves to
an absolute row position with respect to
the end of the result set. For example, calling the method
absolute(-1) positions the
cursor on the last row; calling the method absolute(-2)
moves the cursor to the next-to-last row, and so on.
An attempt to position the cursor beyond the first/last row in the result set leaves the cursor before the first row or after the last row.
Note: Calling absolute(1) is the same
as calling first(). Calling absolute(-1)
is the same as calling last().
row - the number of the row to which the cursor should move.
A positive number indicates the row number counting from the
beginning of the result set; a negative number indicates the
row number counting from the end of the result set
true if the cursor is on the result set;
false otherwise
SQLException - if a database access error
occurs, or the result set type is TYPE_FORWARD_ONLY
public boolean relative(int rows)
throws SQLException
relative(0) is valid, but does
not change the cursor position.
Note: Calling the method relative(1)
is identical to calling the method next() and
calling the method relative(-1) is identical
to calling the method previous().
rows - an int specifying the number of rows to
move from the current row; a positive number moves the cursor
forward; a negative number moves the cursor backward
true if the cursor is on a row;
false otherwise
SQLException - if a database access error occurs,
there is no current row, or the result set type is
TYPE_FORWARD_ONLY
public boolean previous()
throws SQLException
ResultSet object.
true if the cursor is on a valid row;
false if it is off the result set
SQLException - if a database access error
occurs or the result set type is TYPE_FORWARD_ONLY
public void setFetchDirection(int direction)
throws SQLException
ResultSet object will be processed.
The initial value is determined by the
Statement object
that produced this ResultSet object.
The fetch direction may be changed at any time.
direction - an int specifying the suggested
fetch direction; one of ResultSet.FETCH_FORWARD,
ResultSet.FETCH_REVERSE, or
ResultSet.FETCH_UNKNOWN
SQLException - if a database access error occurs or
the result set type is TYPE_FORWARD_ONLY and the fetch
direction is not FETCH_FORWARDStatement.setFetchDirection(int),
getFetchDirection()
public int getFetchDirection()
throws SQLException
ResultSet object.
ResultSet object
SQLException - if a database access error occurssetFetchDirection(int)
public void setFetchSize(int rows)
throws SQLException
ResultSet object.
If the fetch size specified is zero, the JDBC driver
ignores the value and is free to make its own best guess as to what
the fetch size should be. The default value is set by the
Statement object
that created the result set. The fetch size may be changed at any time.
rows - the number of rows to fetch
SQLException - if a database access error occurs or the
condition 0 <= rows <= Statement.getMaxRows() is not satisfiedgetFetchSize()
public int getFetchSize()
throws SQLException
ResultSet object.
ResultSet object
SQLException - if a database access error occurssetFetchSize(int)
public int getType()
throws SQLException
ResultSet object.
The type is determined by the Statement object
that created the result set.
ResultSet.TYPE_FORWARD_ONLY,
ResultSet.TYPE_SCROLL_INSENSITIVE,
or ResultSet.TYPE_SCROLL_SENSITIVE
SQLException - if a database access error occurs
public int getConcurrency()
throws SQLException
ResultSet object.
The concurrency used is determined by the
Statement object that created the result set.
ResultSet.CONCUR_READ_ONLY
or ResultSet.CONCUR_UPDATABLE
SQLException - if a database access error occurs
public boolean rowUpdated()
throws SQLException
true if both (1) the row has been visibly updated
by the owner or another and (2) updates are detected
SQLException - if a database access error occursDatabaseMetaData.updatesAreDetected(int)
public boolean rowInserted()
throws SQLException
ResultSet object can detect visible inserts.
true if a row has had an insertion
and insertions are detected; false otherwise
SQLException - if a database access error occursDatabaseMetaData.insertsAreDetected(int)
public boolean rowDeleted()
throws SQLException
ResultSet object can detect deletions.
true if a row was deleted and deletions are detected;
false otherwise
SQLException - if a database access error occursDatabaseMetaData.deletesAreDetected(int)
public void updateNull(int columnIndex)
throws SQLException
updateRow
or insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...
SQLException - if a database access error occurs
public void updateBoolean(int columnIndex,
boolean x)
throws SQLException
boolean value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateByte(int columnIndex,
byte x)
throws SQLException
byte value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateShort(int columnIndex,
short x)
throws SQLException
short value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateInt(int columnIndex,
int x)
throws SQLException
int value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateLong(int columnIndex,
long x)
throws SQLException
long value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateFloat(int columnIndex,
float x)
throws SQLException
float value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateDouble(int columnIndex,
double x)
throws SQLException
double value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateBigDecimal(int columnIndex,
BigDecimal x)
throws SQLException
java.math.BigDecimal
value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateString(int columnIndex,
String x)
throws SQLException
String value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateBytes(int columnIndex,
byte[] x)
throws SQLException
byte array value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateDate(int columnIndex,
Date x)
throws SQLException
java.sql.Date value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateTime(int columnIndex,
Time x)
throws SQLException
java.sql.Time value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateTimestamp(int columnIndex,
Timestamp x)
throws SQLException
java.sql.Timestamp
value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateAsciiStream(int columnIndex,
InputStream x,
int length)
throws SQLException
updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column valuelength - the length of the stream
SQLException - if a database access error occurs
public void updateBinaryStream(int columnIndex,
InputStream x,
int length)
throws SQLException
updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column valuelength - the length of the stream
SQLException - if a database access error occurs
public void updateCharacterStream(int columnIndex,
Reader x,
int length)
throws SQLException
updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column valuelength - the length of the stream
SQLException - if a database access error occurs
public void updateObject(int columnIndex,
Object x,
int scale)
throws SQLException
Object value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column valuescale - for java.sql.Types.DECIMA
or java.sql.Types.NUMERIC types,
this is the number of digits after the decimal point. For all other
types this value will be ignored.
SQLException - if a database access error occurs
public void updateObject(int columnIndex,
Object x)
throws SQLException
Object value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateNull(String columnName)
throws SQLException
null value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the column
SQLException - if a database access error occurs
public void updateBoolean(String columnName,
boolean x)
throws SQLException
boolean value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateByte(String columnName,
byte x)
throws SQLException
byte value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateShort(String columnName,
short x)
throws SQLException
short value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateInt(String columnName,
int x)
throws SQLException
int value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateLong(String columnName,
long x)
throws SQLException
long value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateFloat(String columnName,
float x)
throws SQLException
float value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateDouble(String columnName,
double x)
throws SQLException
double value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateBigDecimal(String columnName,
BigDecimal x)
throws SQLException
java.sql.BigDecimal
value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateString(String columnName,
String x)
throws SQLException
String value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateBytes(String columnName,
byte[] x)
throws SQLException
updateRow
or insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateDate(String columnName,
Date x)
throws SQLException
java.sql.Date value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateTime(String columnName,
Time x)
throws SQLException
java.sql.Time value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateTimestamp(String columnName,
Timestamp x)
throws SQLException
java.sql.Timestamp
value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateAsciiStream(String columnName,
InputStream x,
int length)
throws SQLException
updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column valuelength - the length of the stream
SQLException - if a database access error occurs
public void updateBinaryStream(String columnName,
InputStream x,
int length)
throws SQLException
updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column valuelength - the length of the stream
SQLException - if a database access error occurs
public void updateCharacterStream(String columnName,
Reader reader,
int length)
throws SQLException
updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnreader - the java.io.Reader object containing
the new column valuelength - the length of the stream
SQLException - if a database access error occurs
public void updateObject(String columnName,
Object x,
int scale)
throws SQLException
Object value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column valuescale - for java.sql.Types.DECIMAL
or java.sql.Types.NUMERIC types,
this is the number of digits after the decimal point. For all other
types this value will be ignored.
SQLException - if a database access error occurs
public void updateObject(String columnName,
Object x)
throws SQLException
Object value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void insertRow()
throws SQLException
ResultSet object and into the database.
The cursor must be on the insert row when this method is called.
SQLException - if a database access error occurs,
if this method is called when the cursor is not on the insert row,
or if not all of non-nullable columns in
the insert row have been given a value
public void updateRow()
throws SQLException
ResultSet object.
This method cannot be called when the cursor is on the insert row.
SQLException - if a database access error occurs or
if this method is called when the cursor is on the insert row
public void deleteRow()
throws SQLException
ResultSet object
and from the underlying database. This method cannot be called when
the cursor is on the insert row.
SQLException - if a database access error occurs
or if this method is called when the cursor is on the insert row
public void refreshRow()
throws SQLException
The refreshRow method provides a way for an
application to
explicitly tell the JDBC driver to refetch a row(s) from the
database. An application may want to call refreshRow when
caching or prefetching is being done by the JDBC driver to
fetch the latest value of a row from the database. The JDBC driver
may actually refresh multiple rows at once if the fetch size is
greater than one.
All values are refetched subject to the transaction isolation
level and cursor sensitivity. If refreshRow is called after
calling an updater method, but before calling
the method updateRow, then the
updates made to the row are lost. Calling the method
refreshRow frequently will likely slow performance.
SQLException - if a database access error
occurs or if this method is called when the cursor is on the insert row
public void cancelRowUpdates()
throws SQLException
ResultSet object.
This method may be called after calling an
updater method(s) and before calling
the method updateRow to roll back
the updates made to a row. If no updates have been made or
updateRow has already been called, this method has no
effect.
SQLException - if a database access error
occurs or if this method is called when the cursor is
on the insert row
public void moveToInsertRow()
throws SQLException
insertRow methods may be
called when the cursor is on the insert row. All of the columns in
a result set must be given a value each time this method is
called before calling insertRow.
An updater method must be called before a
getter method can be called on a column value.
SQLException - if a database access error occurs
or the result set is not updatable
public void moveToCurrentRow()
throws SQLException
SQLException - if a database access error occurs
or the result set is not updatable
public Statement getStatement()
throws SQLException
Statement object that produced this
ResultSet object.
If the result set was generated some other way, such as by a
DatabaseMetaData method, this method returns
null.
Statment object that produced
this ResultSet object or null
if the result set was produced some other way
SQLException - if a database access error occurs
public Object getObject(int i,
Map map)
throws SQLException
ResultSet object as an Object
in the Java programming language.
If the value is an SQL NULL,
the driver returns a Java null.
This method uses the given Map object
for the custom mapping of the
SQL structured or distinct type that is being retrieved.
i - the first column is 1, the second is 2, ...map - a java.util.Map object that contains the mapping
from SQL type names to classes in the Java programming language
Object in the Java programming language
representing the SQL value
SQLException - if a database access error occurs
public Ref getRef(int i)
throws SQLException
ResultSet object as a Ref object
in the Java programming language.
i - the first column is 1, the second is 2, ...
Ref object representing an SQL REF
value
SQLException - if a database access error occurs
public Blob getBlob(int i)
throws SQLException
ResultSet object as a Blob object
in the Java programming language.
i - the first column is 1, the second is 2, ...
Blob object representing the SQL
BLOB value in the specified column
SQLException - if a database access error occurs
public Clob getClob(int i)
throws SQLException
ResultSet object as a Clob object
in the Java programming language.
i - the first column is 1, the second is 2, ...
Clob object representing the SQL
CLOB value in the specified column
SQLException - if a database access error occurs
public Array getArray(int i)
throws SQLException
ResultSet object as an Array object
in the Java programming language.
i - the first column is 1, the second is 2, ...
Array object representing the SQL
ARRAY value in the specified column
SQLException - if a database access error occurs
public Object getObject(String colName,
Map map)
throws SQLException
ResultSet object as an Object
in the Java programming language.
If the value is an SQL NULL,
the driver returns a Java null.
This method uses the specified Map object for
custom mapping if appropriate.
colName - the name of the column from which to retrieve the valuemap - a java.util.Map object that contains the mapping
from SQL type names to classes in the Java programming language
Object representing the SQL value in the
specified column
SQLException - if a database access error occurs
public Ref getRef(String colName)
throws SQLException
ResultSet object as a Ref object
in the Java programming language.
colName - the column name
Ref object representing the SQL REF
value in the specified column
SQLException - if a database access error occurs
public Blob getBlob(String colName)
throws SQLException
ResultSet object as a Blob object
in the Java programming language.
colName - the name of the column from which to retrieve the value
Blob object representing the SQL BLOB
value in the specified column
SQLException - if a database access error occurs
public Clob getClob(String colName)
throws SQLException
ResultSet object as a Clob object
in the Java programming language.
colName - the name of the column from which to retrieve the value
Clob object representing the SQL CLOB
value in the specified column
SQLException - if a database access error occurs
public Array getArray(String colName)
throws SQLException
ResultSet object as an Array object
in the Java programming language.
colName - the name of the column from which to retrieve the value
Array object representing the SQL ARRAY value in
the specified column
SQLException - if a database access error occurs
public Date getDate(int columnIndex,
Calendar cal)
throws SQLException
ResultSet object as a java.sql.Date object
in the Java programming language.
This method uses the given calendar to construct an appropriate millisecond
value for the date if the underlying database does not store
timezone information.
columnIndex - the first column is 1, the second is 2, ...cal - the java.util.Calendar object
to use in constructing the date
java.sql.Date object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
public Date getDate(String columnName,
Calendar cal)
throws SQLException
ResultSet object as a java.sql.Date object
in the Java programming language.
This method uses the given calendar to construct an appropriate millisecond
value for the date if the underlying database does not store
timezone information.
columnName - the SQL name of the column from which to retrieve the valuecal - the java.util.Calendar object
to use in constructing the date
java.sql.Date object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
public Time getTime(int columnIndex,
Calendar cal)
throws SQLException
ResultSet object as a java.sql.Time object
in the Java programming language.
This method uses the given calendar to construct an appropriate millisecond
value for the time if the underlying database does not store
timezone information.
columnIndex - the first column is 1, the second is 2, ...cal - the java.util.Calendar object
to use in constructing the time
java.sql.Time object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
public Time getTime(String columnName,
Calendar cal)
throws SQLException
ResultSet object as a java.sql.Time object
in the Java programming language.
This method uses the given calendar to construct an appropriate millisecond
value for the time if the underlying database does not store
timezone information.
columnName - the SQL name of the columncal - the java.util.Calendar object
to use in constructing the time
java.sql.Time object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
public Timestamp getTimestamp(int columnIndex,
Calendar cal)
throws SQLException
ResultSet object as a java.sql.Timestamp object
in the Java programming language.
This method uses the given calendar to construct an appropriate millisecond
value for the timestamp if the underlying database does not store
timezone information.
columnIndex - the first column is 1, the second is 2, ...cal - the java.util.Calendar object
to use in constructing the timestamp
java.sql.Timestamp object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
public Timestamp getTimestamp(String columnName,
Calendar cal)
throws SQLException
ResultSet object as a java.sql.Timestamp object
in the Java programming language.
This method uses the given calendar to construct an appropriate millisecond
value for the timestamp if the underlying database does not store
timezone information.
columnName - the SQL name of the columncal - the java.util.Calendar object
to use in constructing the date
java.sql.Timestamp object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
public URL getURL(int columnIndex)
throws SQLException
ResultSet object as a java.net.URL
object in the Java programming language.
columnIndex - the index of the column 1 is the first, 2 is the second,...
java.net.URL object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs,
or if a URL is malformed
public URL getURL(String columnName)
throws SQLException
ResultSet object as a java.net.URL
object in the Java programming language.
columnName - the SQL name of the column
java.net.URL object;
if the value is SQL NULL,
the value returned is null in the Java programming language
SQLException - if a database access error occurs
or if a URL is malformed
public void updateRef(int columnIndex,
Ref x)
throws SQLException
java.sql.Ref value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateRef(String columnName,
Ref x)
throws SQLException
java.sql.Ref value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateBlob(int columnIndex,
Blob x)
throws SQLException
java.sql.Blob value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateBlob(String columnName,
Blob x)
throws SQLException
java.sql.Blob value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateClob(int columnIndex,
Clob x)
throws SQLException
java.sql.Clob value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateClob(String columnName,
Clob x)
throws SQLException
java.sql.Clob value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
public void updateArray(int columnIndex,
Array x)
throws SQLException
java.sql.Array value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnIndex - the first column is 1, the second is 2, ...x - the new column value
SQLException - if a database access error occurs
public void updateArray(String columnName,
Array x)
throws SQLException
java.sql.Array value.
The updater methods are used to update column values in the
current row or the insert row. The updater methods do not
update the underlying database; instead the updateRow or
insertRow methods are called to update the database.
columnName - the name of the columnx - the new column value
SQLException - if a database access error occurs
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Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.