F. Features Introduced in Ingres 9.1 (Ingres 2006 Release 2) : Connectivity Enhancements : JDBC Enhancements
 
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JDBC Enhancements
The following JDBC enhancements ease application migration and performance:
The Ingres JDBC driver supports the Java 2 Platform Standard Edition 5.0 (J2SE 5.0) specification, excluding RowSets.
The JDBC cursor default is changed to CURSOR=READONLY. This cursor mode setting typically generates improved JDBC performance, especially for selects returning many rows. A configuration parameter lets you retain the old default, if preferred.
The JDBC ParameterMetaData interface, which is related to the DESCRIBE INPUT functionality in the DBMS, is supported. 
Enhanced support is provided for XA transactions in J2EE environments using the IngresXADataSource.
For more information on JDBC, see the Connectivity Guide.