NVL Function Not Working Through Oracle Database Gateway For Drda - DG4DRDA - On iOS DB2 - AS400 (Doc ID 1341620.1)

Last updated on JULY 28, 2011

Applies to:

Oracle Database Gateway for DRDA - Version: 11.2.0.1 and later   [Release: 11.2 and later ]
Information in this document applies to any platform.

Symptoms

The Oracle Gateway for DRDA (DG4DRDA) 11.2 has been configured to connect to a DB2/400 database. All supported SQL functions work with the exception of the NVL function. There is no error but data is returned without applying the function. For example:


SQL> SELECT nvl(trim(col1), '~') from  dg4db2 .table_name@dg4drda ;
NVL(TRIM(COL1),'~')
----------------------------------------
GROUP0001
REPORT0001

GROUP0001


The same query executed using Oracle Transparent Gateway for DB2400 (TG4DB2400) 10.2 returns the correct result -

SQL> SELECT nvl(trim(col1), '~') from dg4db2 .table_name@tg4db2400 ;
NVL(TRIM(COL1),'~')
----------------------------------------
GROUP0001
REPORT0001
~
GROUP0001


Cause

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