IBM Support

PH07159: DB2 ADMINISTRATION TOOL - EXPLAIN INFLUENCED BY MAX NO OF ROWS TO FETCH

A fix is available

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When running EXPLAIN, it adds the OPTIMIZE FOR nn ROWS prepare
    attribute to the EXPLAIN statement. Max No of Rows to Fetch is
    influencing directlythe statement being explained.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: Users of the Db2 Administration Tool         *
    *                 for z/OS who run EXPLAIN statements.         *
    ****************************************************************
    * PROBLEM DESCRIPTION: Max No of Rows to Fetch is influencing  *
    *                      EXPLAIN results.                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Db2 Admin is setting the prepare attribute OPTIMIZE FOR
    nnn ROW(S) when running EXPLAIN statements.
    This affects the Db2 optimizer which is not desired
    when running EXPLAIN statements in Db2 Admin.
    

Problem conclusion

  • Problem has been resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH07159

  • Reported component name

    DB2 ADMIN TOOL

  • Reported component ID

    568851500

  • Reported release

    C10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-01-11

  • Closed date

    2019-02-06

  • Last modified date

    2019-03-01

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

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

    UI61178 UI61179

Modules/Macros

  •    ADBMAIN
    

Fix information

  • Fixed component name

    DB2 ADMIN TOOL

  • Fixed component ID

    568851500

Applicable component levels

  • RB20 PSY UI61178

       UP19/02/08 P F902

  • RC10 PSY UI61179

       UP19/02/08 P F902

Fix is available

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Document Information

Modified date:
31 March 2021