DEC control statement

The DEC control statement, which activates the decompress option, specifies whether FABHFSU is to decompress database segments.

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DECd

Position

Description

1

Code the DEC keyword to activate the decompress option.

4

The 1-character entry d specifies whether compressed segments are decompressed by FABHFSU. This entry is required.

Use one of the following keywords:

Y

Compressed segments are decompressed. Y is the default.

N

Compressed segments are not decompressed.

Code N only when you want to have compressed segments in the output data sets.

If an unloaded data set has been created by specifying this option for a database that contains a compressed segment, that data set is not compatible with the unloaded data set that is created by the IMS HD Reorganization Unload utility. You cannot reload such an unloaded data set by using the IMS HD Reorganization Reload utility (DFSURGL0), but you can reload it by using IMS High Performance Load (Load utility or PSSR utility) or the IPR Reload utility.

Notes:

If there is a segment type for which a Segment Edit/Compression exit routine is specified and the use of a Data Conversion exit is designated, the DECN option is ignored and the process continues with DECY.
If the DECN option is specified and one or more partitions of PHDAM or PHIDAM are in the HALDB OLR cursor-active status, FABHFSU ends abnormally.
Do not code DECN if you want to change the size of the segments.

Tip: The default of this control statement can be changed by replacing the default option table (FABHOPT). Specify the FSUDEC=NO parameter on the FABHTOPT macro statement. For details, see Site default options.