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How Can Resultset Records Be Restricted To Certain Rows?

Answer»

The easy answer is "Use a JDBC 2.0 compliant driver". With a 2.0 driver, you can use the setFetchSize() method within a Statement or a ResultSet object.
For EXAMPLE,

Statement stmt = con.createStatement();
stmt.setFetchSize(400);
ResultSet rs = stmt.executeQuery("select * from customers");

will change the default fetch size to 400.
You can also control the direction in which the rows are PROCESSED. For instance:
stmt.setFetchDirection(ResultSet.FETCH_REVERSE)
will process the rows from bottom up.
The driver MANAGER usually DEFAULTS to the most efficient fetch size...so you MAY try experimenting with different value for optimal performance.

The easy answer is "Use a JDBC 2.0 compliant driver". With a 2.0 driver, you can use the setFetchSize() method within a Statement or a ResultSet object.
For example,

will change the default fetch size to 400.
You can also control the direction in which the rows are processed. For instance:
stmt.setFetchDirection(ResultSet.FETCH_REVERSE)
will process the rows from bottom up.
The driver manager usually defaults to the most efficient fetch size...so you may try experimenting with different value for optimal performance.


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