Batch Management Overview

Batch CA Dataquery is available to allow long running or high-volume queries to be processed without consuming online system resources. You can effectively improve online performance by taking advantage of this batch processing capability.

When a user executes queries or dialogs in batch, two choices are available: Batch Sign/On and Batch Online SUBMIT. In Batch Sign/On, the user must create or adapt and use JCL with a product other than CA Dataquery from which the JCL and the input CA Dataquery statements are submitted to the operating system for batch execution. In Batch Online SUBMIT, the user uses a CA Dataquery online panel to submit CA Dataquery JCL from a CA Dataquery library that carries instructions for query execution. Both types of batch query execution take place offline, conserving resources for online use. The online facilities of CA Dataquery do not have to be up for batch CA Dataquery execution. The execution JCL for batch CA Dataquery points to the load libraries containing the CA Dataquery modules.

One or more users can be given CA Dataquery Administrator authorization for creating and maintaining the CA Dataquery online JCL libraries. The CA Dataquery Administrator maintains the JCL and provides end users with information about which JCL members are appropriate (if the user is given JCL member names in order to be able to use more than one JCL member). With Batch Online SUBMIT, the CA Dataquery Administrator can also create JCL PROCs which permit users to change specific values in a JCL member, as needed.

The following chapters provide background information about CA Dataquery JCL statements, along with examples. For authoritative advice regarding the use of JCL statements, see your systems programmer.

Look in this chapter for overview information about Batch CA Dataquery. The next chapter provides Batch Sign/On JCL statements and examples of both DQL and SQL JCL for Batch Sign/On. The chapter on managing Batch Online provides information about the task of maintaining JCL libraries.