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ICPREF keyword

Use the ICPREF keyword to identify a data set name prefix.

A data set name prefix is required when you dynamically allocate an output image copy data set by using the ICALLOC(Y) and IC(*) or STKIC keywords and you do not provide a dynamic allocation model.

Do not specify prefixes SYS, PLUS, and DFS when using preallocated GDGs; the product ignores ddnames with these prefixes.

Uses

Optional in global and database-specific options modules. Optional on the following control statements:

  • GLBL
  • GROUP
  • IC and AIC
  • OIC and AOIC
  • CIC and ACIC
  • IIC and AIIC
  • REC and AREC

Related keywords

Refer also to the following keywords:

Syntax

ICPREF(dsnprefix)

Values

For the value, specify the data set name prefix (1-33 alphanumeric characters, including periods). This prefix is the high-level qualifier of the data set name. The prefix can include periods and must conform to normal data set naming standards; it cannot end with a period.

Warning

Even though the ICPREF keyword allows up to 33 characters for identifying the data set name prefix, the entire data set name can be only 44 characters. Because of the concatenations, a GDG or stacked data set name could easily exceed the 44-character limit. A data set name with more than 44 characters causes a job step abend. For more information, see Dynamic-allocation.

Default

None

Related topic

ICPSYSIN-keywords

 

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