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java.sql
Interface ResultSet

All Known Subinterfaces:
CachedRowSet, FilteredRowSet, JdbcRowSet, JoinRowSet, RowSet, SyncResolver, WebRowSet
public interface ResultSet

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 (JDK 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:

  1. to update a column value in the current row. In a scrollable 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
  2. to insert column values into the insert row. An updatable 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.

See Also:
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<String,Class<?>> 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<String,Class<?>> 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

FETCH_FORWARD

static final int FETCH_FORWARD
The constant indicating that the rows in a result set will be processed in a forward direction; first-to-last. This constant is used by the method setFetchDirection as a hint to the driver, which the driver may ignore.

Since:
1.2
See Also:
Constant Field Values

FETCH_REVERSE

static final int FETCH_REVERSE
The constant indicating that the rows in a result set will be processed in a reverse direction; last-to-first. This constant is used by the method setFetchDirection as a hint to the driver, which the driver may ignore.

Since:
1.2
See Also:
Constant Field Values

FETCH_UNKNOWN

static final int FETCH_UNKNOWN
The constant indicating that the order in which rows in a result set will be processed is unknown. This constant is used by the method setFetchDirection as a hint to the driver, which the driver may ignore.

See Also:
Constant Field Values

TYPE_FORWARD_ONLY

static final int TYPE_FORWARD_ONLY
The constant indicating the type for a ResultSet object whose cursor may move only forward.

Since:
1.2
See Also:
Constant Field Values

TYPE_SCROLL_INSENSITIVE

static final 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.

Since:
1.2
See Also:
Constant Field Values

TYPE_SCROLL_SENSITIVE

static final int TYPE_SCROLL_SENSITIVE
The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others.

Since:
1.2
See Also:
Constant Field Values

CONCUR_READ_ONLY

static final int CONCUR_READ_ONLY
The constant indicating the concurrency mode for a ResultSet object that may NOT be updated.

Since:
1.2
See Also:
Constant Field Values

CONCUR_UPDATABLE

static final int CONCUR_UPDATABLE
The constant indicating the concurrency mode for a ResultSet object that may be updated.

Since:
1.2
See Also:
Constant Field Values

HOLD_CURSORS_OVER_COMMIT

static final int HOLD_CURSORS_OVER_COMMIT
The constant indicating that ResultSet objects should not be closed when the method Connection.commit is called.

Since:
1.4
See Also:
Constant Field Values

CLOSE_CURSORS_AT_COMMIT

static final int CLOSE_CURSORS_AT_COMMIT
The constant indicating that ResultSet objects should be closed when the method Connection.commit is called.

Since:
1.4
See Also:
Constant Field Values
Method Detail

next

boolean next()
             throws SQLException
Moves the cursor down one row from its current position. A 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.

Returns:
true if the new current row is valid; false if there are no more rows
Throws:
SQLException - if a database access error occurs

close

void close()
           throws SQLException
Releases this 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.

Throws:
SQLException - if a database access error occurs

wasNull

boolean wasNull()
                throws SQLException
Reports whether the last column read had a value of SQL 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.

Returns:
true if the last column value read was SQL NULL and false otherwise
Throws:
SQLException - if a database access error occurs

getString

String getString(int columnIndex)
                 throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getBoolean

boolean getBoolean(int columnIndex)
                   throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a boolean in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is false
Throws:
SQLException - if a database access error occurs

getByte

byte getByte(int columnIndex)
             throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a byte in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getShort

short getShort(int columnIndex)
               throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a short in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getInt

int getInt(int columnIndex)
           throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as an int in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getLong

long getLong(int columnIndex)
             throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getFloat

float getFloat(int columnIndex)
               throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getDouble

double getDouble(int columnIndex)
                 throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a double in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getBigDecimal

@Deprecated
BigDecimal getBigDecimal(int columnIndex,
                                    int scale)
                         throws SQLException
Deprecated. 

Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.BigDecimal in the Java programming language.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
scale - the number of digits to the right of the decimal point
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getBytes

byte[] getBytes(int columnIndex)
                throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language. The bytes represent the raw values returned by the driver.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getDate

Date getDate(int columnIndex)
             throws SQLException
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.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getTime

Time getTime(int columnIndex)
             throws SQLException
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.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getTimestamp

Timestamp getTimestamp(int columnIndex)
                       throws SQLException
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.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getAsciiStream

InputStream getAsciiStream(int columnIndex)
                           throws SQLException
Retrieves the value of the designated column in the current row of this 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 InputStream.available is called whether there is data available or not.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
a Java input stream that delivers the database column value as a stream of one-byte ASCII characters; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getUnicodeStream

@Deprecated
InputStream getUnicodeStream(int columnIndex)
                             throws SQLException
Deprecated. use getCharacterStream in place of getUnicodeStream

Retrieves the value of the designated column in the current row of this 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.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
a Java input stream that delivers the database column value as a stream of two-byte Unicode characters; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getBinaryStream

InputStream getBinaryStream(int columnIndex)
                            throws SQLException
Retrieves the value of the designated column in the current row of this 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.

Parameters:
columnIndex - the first column is 1, the second is 2, ...
Returns:
a Java input stream that delivers the database column value as a stream of uninterpreted bytes; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getString

String getString(String columnName)
                 throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getBoolean

boolean getBoolean(String columnName)
                   throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a boolean in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is false
Throws:
SQLException - if a database access error occurs

getByte

byte getByte(String columnName)
             throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a byte in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getShort

short getShort(String columnName)
               throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a short in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getInt

int getInt(String columnName)
           throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as an int in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getLong

long getLong(String columnName)
             throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a long in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getFloat

float getFloat(String columnName)
               throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a float in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getDouble

double getDouble(String columnName)
                 throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a double in the Java programming language.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is 0
Throws:
SQLException - if a database access error occurs

getBigDecimal

@Deprecated
BigDecimal getBigDecimal(String columnName,
                                    int scale)
                         throws SQLException
Deprecated. 

Retrieves the value of the designated column in the current row of this ResultSet object as a java.math.BigDecimal in the Java programming language.

Parameters:
columnName - the SQL name of the column
scale - the number of digits to the right of the decimal point
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getBytes

byte[] getBytes(String columnName)
                throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a byte array in the Java programming language. The bytes represent the raw values returned by the driver.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getDate

Date getDate(String columnName)
             throws SQLException
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.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getTime

Time getTime(String columnName)
             throws SQLException
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.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getTimestamp

Timestamp getTimestamp(String columnName)
                       throws SQLException
Retrieves the value of the designated column in the current row of this ResultSet object as a java.sql.Timestamp object.

Parameters:
columnName - the SQL name of the column
Returns:
the column value; if the value is SQL NULL, the value returned is null
Throws:
SQLException - if a database access error occurs

getAsciiStream

InputStream getAsciiStream(String columnName)
                           throws SQLException
Retrieves the value of the designated column in the current row of this 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.

Parameters:
columnName - the SQL name of the column
Returns:
a Java input stream that