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DB2 9 and z/OS XML System Services Synergy for Distributed Workloads

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Executive Summary

It is recognized that XML, which is widely adopted across industries for its flexibility and portability, is nonetheless verbose and its manipulations incur more overhead than its relational counterparts. Even though z/OS XML System Services is an efficient system level XML parser on z/OS, additional general CPU cost reduction is possible. With the proper software and hardware, local DB2 calls to z/OS XML System Services are redirected to a IBM System z Application Assist Processor (zAAP) specialty engine. Included are invocations from the attachments that run in TCB mode. DB2 already has functions that can be redirected to the System z Integrated Information Processor (zIIP) specialty engine.

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