IT25305: SQL0332N WITH NVL2 FUNCTION AND VARCHAR FOR BIT DATA AND GRAPHIC

APAR status

• Closed as program error.

Error description

• NVL2 produces error SQL0332N if the first argument is FOR BIT
  DATA and the second and third arguments are GRAPHIC
  (or vice-versa).  For example:
  
  create table MYSCHEMA.TEST (
   graphiccol GRAPHIC(4) -- any other type is fine
  );
  
  All these examples incorrectly produce an error due to mix of
  GRAPHIC and character string FOR BIT DATA:
  
  select  NVL2(RID_BIT(test), test.graphiccol, test.graphiccol)
  FROM MYSCHEMA.TEST test;
  SQL0332N  Character conversion from the source code page "1200"
  to the target code page "0" is not supported.  SQLSTATE=57017
  
  select  NVL2(cast(RID_BIT(test) as varchar(16)),test.graphiccol,
  test.graphiccol)
  FROM MYSCHEMA.TEST test;
  SQL0332N
  
  select  NVL2(cast('blabla' as varchar(16) for bit data) ,
  test.graphiccol, test.graphiccol)
  FROM MYSCHEMA.TEST test;
  SQL0332N
  
  This works fine since the first argument is not FOR BIT DATA:
  
  db2 "select  NVL2(cast('blabla' as varchar(16)) ,
  test.graphiccol,test.graphiccol) as column1
  FROM MYSCHEMA.TEST test"
  
  COLUMN1
  --------
  
    0 record(s) selected.
  

Local fix

• Cast the GRAPHIC expression(s) to VARGRAPHIC or use the
  equivalent CASE expression instead of NVL2
  
  CASE WHEN expression IS NOT NULL
            THEN result-expression
            ELSE else-expression
       END
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * ALL                                                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Upgrade to Db2 11.1 Mod 4 Fix Pack 5 or use local fix        *
  ****************************************************************
  

Problem conclusion

• Fixed in Db2 11.1 Mod 4 Fix Pack 5
  

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:

Fix information

• Fixed component name

  DB2 FOR LUW

• Fixed component ID

  DB2FORLUW

Applicable component levels