PM80983: ABEND04E RC00C90101 AT DSNOGETD 5007 ERQUAL5007 IS ISSUED WHEN LOB STRING PROCESSING GETS RESOURCE UNAVAILABLE ERROR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABEND04E RC00C90101 at DSNOGETD 5007 is issued when lob string
  processing gets RESOURCE UNAVAILABLE error.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DB2 10 for z/OS users of LOBs when       *
  *                 used in a LIKE predicate.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: An ABEND04E RC00C90101 at DSNOGETD 5007 *
  *                      can occur for a LOB column, defined in  *
  *                      a UNICODE table, is used in a LIKE      *
  *                      predicate when a 'resource unavailable' *
  *                      condition is detected.  Instead DB2     *
  *                      should issue SQLCODE -904 for 'resource *
  *                      unavailable' condition.                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  An ABEND04E RC00C90101 can occur at location DSNOGETD 5007
  (ERQUAL5007) when processing a LOB column (in a UNICODE table)
  used in a LIKE predicate, a 'resource unavailable' condition is
  detected.  Instead DB2 should issue SQLCODE -904 for the
  'resource unavailable' condition.
  
  The following example illustrates the problem.
  
  1. Create a UNICODE Table with a LOB column and insert a row.
  
     CREATE TABLE T1
      (C1 CLOB(1K) , ID INT) CCSID UNICODE;
  
     INSERT INTO T1 VALUES(CLOB('ABCDE20'),1);
  
  
  2. Issue a SELECT statement which uses the LOB column C1
     in a LIKE predicate.
  
     SELECT * FROM T1 WHERE C1 LIKE '_E_';
  
  
  During the LIKE predicate processing for the LOB, if a 'resource
  unavailable' condition is detected at the same time (let's say
  on behalf of the SELECT job being canceled by the user), the LOB
  processing code does not handle the unexpected error condition
  correctly which leads to the aforementioned abend.
  
  Please note, other SQL errors during UNICODE LOB LIKE predicate
  processing can also trigger the above abend.
  

Problem conclusion

• The code in DB2 has been modified to prevent the abend for the
  stated conditions.  After this fix a correct SQLCODE will be
  issued instead of ABEND04E.
  
  Additional Keywords: DB2LOB SQLLOB SQLLIKE SQLCODE904
  

Temporary fix

Comments

APAR Information

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

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

  UK93653

Modules/Macros

• DSNOUL16 DSNOUL8
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK93653

     UP13/05/07 P F305

Fix is available

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