PH64742: ENHANCEMENT TO IFCIDS AND EXPLAIN TABLES FOR STATEMENT-LEVEL ZIIP STATS

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• Enhancement to IFCIDs and EXPLAIN tables for statement-level
  zIIP statistics .
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Db2 13 for z/OS users that use           *
  *                 DSN_STATEMENT_CACHE_TABLE and IFCID058,      *
  *                 IFCID316, or IFCID401 trace records.         *
  *                                                              *
  *                 All Db2 13 for z/OS users of the following:  *
  *                 o Db2-supplied stored procedure              *
  *                   SYSPROC.ADMIN_EXPLAIN_MAINT                *
  *                 o Db2-supplied REXX execs:                   *
  *                   - DSNTXTA (Job DSNTIJXA)                   *
  *                   - DSNTXTB (Job DSNTIJXB)                   *
  *                 o Db2 sample job DSNTESC                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: Z Integrated Information Processor      *
  *                      (zIIP) CPU usage statistics are         *
  *                      unavailable for IFCID058, IFCID316,     *
  *                      and IFCID401 trace records as well as   *
  *                      the DSN_STATEMENT_CACHE_TABLE.          *
  ****************************************************************
  The absence of zIIP CPU statistics
  obscures statement-level CPU usage,
  making it difficult for users to
  determine an SQL statement's
  performance. As a result, users
  are at risk of not knowing they
  should modify their SQL queries
  or applications to ensure better
  performance from Db2 13.To address
  this issue, zIIP CPU usage statistics
  have been fully integrated into the
  DSN_STATEMENT_CACHE_TABLE EXPLAIN table
  as well as IFCID058, IFCID316, and
  IFCID401 trace records.
  

Problem conclusion

Temporary fix

Comments

• This APAR enhances the Db2-supplied stored procedure
  SYSPROC.ADMIN_EXPLAIN_MAINT, REXX execs DSNTXTA and DSNTXTB,
  and sample job DSNTESC to enable them to process the new
  STAT_ZIIP_CPU column added to the EXPLAIN table
  DSN_STATEMENT_CACHE_TABLE.
  
  Keywords:
  - SQLDYNSTMTCACHE
  - SQLEXPLAIN
  - IFCID058
  - IFCID316
  - IFCID401
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UO02153

Modules/Macros

• DSN@DMEM DSNADMEM DSNDQW01 DSNDQW04 DSNDQW05 DSNGEPSH DSNTESC
  DSNTXTA  DSNTXTB  DSNXDMPS DSNXEBR  DSNXECST DSNXECW  DSNXECWA
  DSNXECWU DSNXEET  DSNXEIST DSNXELX  DSNXERD  DSNXERD2 DSNXERDS
  DSNXERT  DSNXERT2 DSNXETRC DSNXEUCS DSNXEUFP DSNXEXPL DSNXOD0
  DSNXOD12 DSNXOD15 DSNXOGP  DSNXOML5 DSNXOMLS DSNXOOP  DSNXOPAH
  DSNXOPEH DSNXOPMS
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RD10 PSY UO02153

     UP25/02/26 P F502  

Fix is available

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