IBM Support

IT18204: WRONG RESULT IS POSSIBLE IN ORACLE COMPATIBILITY MODE UNICODE DBWHEN COMPARING A CHAR COLUMN WITH A GRAPHIC CONSTANT

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • If Oracle compatibility mode is set, we could return wrong
    results in Unicode database when comparing a char column and a
    graphic constant.
    example:
    
    db2set DB2_COMPATIBILITY_VECTOR=ORA
    create db testdb
    connect to testdb
    create table test(c1 char(3))
    insert into test values('a  ')
    select * from test where c1 = graphic('a')
    
    Expected:
    
    C1
    ---
    a
    
      1 record(s) selected.
    
    Actual:
    
    C1
    ---
    
      0 record(s) selected.
    

Local fix

  • rewrite sql to avoid this comparison
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * ALL                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 11.1 Mod 2 Fix Pack 2 or higher               *
    ****************************************************************
    

Problem conclusion

  • First fixed in DB2 11.1 Mod 2 Fix Pack 2
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT18204

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-12-01

  • Closed date

    2017-06-27

  • Last modified date

    2017-06-27

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

    IT18203

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

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
29 June 2020