IBB REXX procedure (Batch Browse)

The REXX Procedure run by Batch Browse calls IBB functions to process the database with or without a view.

Using a view, you have limited control over how FM/IMS can navigate the IMS database. By specifying Selection Criteria in the view, FM/IMS only returns the IMS segments that match the selection criteria specified.

The IBB calls available when using a view are:

GETIMS: Retrieve IMS segments using the view specified.
PRINT: Print an IMS segment in CHAR, HEX, SNGL, or TABL format.
SETRC: Set the IBB job step return code.
VIEWIMS: Create and load a view to be used by the REXX procedure to retrieve IMS segments.
VIEWPOSN: Position on an IMS segment prior to invoking the GETIMS call. This allows you to start processing the IMS database from a point within the database.

When not using a view, you can navigate the IMS database using the GETIMS call. This mode is similar to issuing IMS calls within a program. You can:

Retrieve segments based on the segments key values.
Retrieve a segment's children.
Position on a segment's parent or its root segment.

The IBB calls available when not using a view are:

GETIMS

Retrieve IMS segments.

PRINT

Print an IMS segment in CHAR, HEX, SNGL, or TABL format.

SETRC

Set the IBB job step return code.

VIEWIMS

Create and load a view to be used by the REXX procedure. When not processing the database using a view, FM/IMS uses the IMS segment layouts and fields in the view to:

Print in SNGL or TABL format.
Generate an IMS SSA when retrieving an IMS segment and the WHERE clause specifies fields from the view.