IT28028: SELECT-STATEMENT WITH WHERE-CLAUSE, FETCH-CLAUSE AND UPDATE-CLAUSE FAILS WITH SQLCODE -511

Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows

APAR status

• Closed as program error.

Error description

• Compiling a select-statement that includes a where-clause,
  fetch-clause and
  update-clause may erroneously return SQLCODE -511.  E.g.:
  
      SELECT C1 FROM T WHERE C2 = 1 LIMIT ? FOR UPDATE WITH RS
      SQL0511N The FOR UPDATE clause is not allowed because the
  table specified by
      the cursor cannot be modified. SQLSTATE=42829
  

Local fix

• If the fetch-clause specifies LIMIT with a constant value,
  change it to use the alternative syntax FETCH FIRST <constant>
  ROWS ONLY.
  
  If the fetch-clause specifies a parameter marker or host
  variable, and there are no other parameter markers or host
  variables in the select-statement, then create a view using the
  fullselect from the original select-statement, but without the
  fetch-clause and update-clause.  Then replace the original
  select-statement with a select from the new view.  Using the
  example above:
  
      CREATE VIEW V AS ( SELECT C1 FROM T WHERE C2 = 1 );
      SELECT C1 FROM V LIMIT ? FOR UPDATE WITH RS;
  
  Otherwise, there is no local fix.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * SQL statements with FOR UPDATE clause                        *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Db2 version 11.1.4.7                              *
  ****************************************************************
  

Problem conclusion

• First fixed in Db2 version 11.1.4.7
  

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:

  IT38215

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels

• RB10 PSN

     UP