Cursor buffering is a way to obtain better throughput when fetching a large number of rows. It consists of having the lower layers of the database library fetch more than one row at a time from the database server.

By default, rows are obtained one at a time from the database server. This can seriously slow down the application when many rows have to be fetched since a network round-trip will be required for each row.

The setCursorBufferedRowsCount member function lets you specify how many rows can be fetched at one time.

Note that this will result in better throughput only with database servers that support this feature, which currently are Oracle and Sybase.