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Communications Blocks and Error Detection › Communications Blocks › IDMS DB Communications Block › Updating Fields in the IDMS DB Communications Block

Updating Fields in the IDMS DB Communications Block

After a call to the DBMS, one or more of these fields may have been updated, depending on the DML statement issued and whether the statement executed successfully.

Example of Updated Fields

The following figure illustrates the IDMS DB communications block fields updated by successful and unsuccessful calls to the DBMS; only those fields accessed by the runtime system are shown.

Key for this figure:

*

If true, the field is set to zoned decimal zeroes (0000). If false, the field is set to 1601.

0

The field is set to zoned decimal zeroes.

Y

The field is updated.

C

The field is cleared to spaces.

N

The field is set to null db-key value (-1)

nn

Specific minor status code

IDMS DB Communications Block