Gain greater flexibility in configuring bulk data movement sessions. When you are ready to run a session, you can switch between the IMS ODBA and DL/1 BATCH access methods as needed. Use ODBA to run small, frequent database queries as PowerExchange Listener subtasks to read or write data. Run DL/I batch or BMP jobs at night to process mass updates that require longer access to the database.

Create fewer PowerExchange data maps. You do not need to create a duplicate data map to change the access method or a related property. With fewer data maps, you also can create fewer PowerCenter mappings and workflows.

Avoid creating very large PSBs that include many PCBs and require large buffers. Large PSBs are sometimes used to avoid exceeding the maximum of ten NETPORT statements in the DBMOVER member. Instead, you can override the PSB and PCB number at session run time.

Use one pair of NETPORT and LISTENER statements for DL/I or BMP access to multiple PSBs.

Override the IMS SSID in an ODBA data map to point to a source or target on another IMS subsystem. You can also use an IMS SSID override to direct a BMP netport job to another IMS SSID or to use another DBD library for an IMS source unload file.

IMS AM Override

. Overrides the access method.

IMS SSID Override

. Overrides the IMS SSID.

IMS PSBNAME Override

. Overrides the PSB name. Available for IMS ODBA and DL/I batch access.

IMS PCBNAME Override

. Overrides the PCB name. Available for IMS ODBA access only.

IMS PCBNUMBER Override

. Overrides the PCB number. Available for DL/I batch access only.