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Status Delivered
Created by Guest
Created on Jul 4, 2016

HPU: support for common templates for multiple selects RFE 90963

http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=90963

When the same OUTDDN is used in several selects, HPU accepts to write in the same file the result of several select statements. We use a template to avoid having to allocate manually the output files. With AUTOTAG keyword or not HPU does not correlate the AUTOTAG and the controls for the TEMPLATE allocation at the moment. We have had a discussion already with Infotel and were asked to open that RFE.

Use Case:

We have to unload e.g. three tablespaces with 250 partitions each. The UNLOAD for each of these tablespaces will be done by PARTition, by means of three SELECT statements with a common OUTDDN. So, each of these output files, which are generation data sets, will contain the combined result of the four SELECTs for a single partition of a single tablespace. Of course, the easiest way to specify such an OUTDDN is using a TEMPLATE containing the &TS and &PART variables. IF HPU supported TEMPLATEs resolving to the same data set name for multiple SELECTs, we could avoid • the explicit specification of 750 different DD statements for OUTDDN • the explicit DEFINition of 750 GDG base entries using IDCAMS, as TEMPLATE processing does this automatically if needed. We would prefer a solution without the need to additionally specify the AUTOTAG operand, because in our case, there is no use tagging the output rows. Possibly, a new OPTION keyword might be introduced to enforce HPU's accepting a common TEMPLATE under the conditions mentioned above.