Performing Queries in Passthrough Mode in Oracle Rdb Databases
Queries can be performed in passthrough mode through the Oracle Rdb driver. Joins made between two Rdb tables stored in the same Rdb database are performed on the OpenVMS server automatically. This enhancement increases the speed of join queries of this type, especially those that use a Where clause in the SQL statement.
If a function is used within the query that does not exist in the Rdb database, CONNX processes the query internally.