home clear 64x64
en blue 200x116 de orange 200x116 info letter User
suche 36x36
Neueste VersionenFixList
11.1.0.7 FixList
10.5.0.9 FixList
10.1.0.6 FixList
9.8.0.5 FixList
9.7.0.11 FixList
9.5.0.10 FixList
9.1.0.12 FixList
Haben Sie Probleme? - Kontaktieren Sie uns.
Kostenlos registrieren anmeldung-x26
Kontaktformular kontakt-x26

DB2 - Problembeschreibung

Problem IT02215 Status: Geschlossen

INCORRECT RESULTS FROM COLUMN-ORGANIZED TABLE WHEN PREDICATE COMPARES NULL
VS CAST(NULL AS <DATA_TYPE>)

Produkt:
DB2 FOR LUW / DB2FORLUW / A50 - DB2
Problembeschreibung:
Incorrect results might be obtained from a column-organized 
table when the predicate compares NULL with CAST (NULL AS 
<DATA_TYPE>). The following is an example of the problem: 
 
Correct result: 
 
SELECT COUNT(*) FROM TABLE1 
WHERE NOT NULL IN COLUMN1 
AND NULL != COLUMN1; 
 
1 
----------- 
          0 
 
  1 record(s) selected. 
 
Wrong result when CAST(NULL AS BIGINT) is used: 
 
SELECT count(*) FROM TABLE1 
WHERE NOT NULL IN COLUMN1 
AND CAST(NULL AS BIGINT) != COLUMN1; 
 
1 
----------- 
         35 
 
  1 record(s) selected.
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All users                                                    * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 version 10.5.0.4.                             * 
****************************************************************
Local-Fix:
Rewrite the query to not use CAST on NULL.
verfügbare FixPacks:
DB2 Cancun Release 10.5.0.4 (also known as Fix Pack 4) for Linux, UNIX, and Windows
DB2 Version 10.5 Fix Pack 9 for Linux, UNIX, and Windows

Lösung
The problem is first fixed in DB2 version 10.5.0.4.
Workaround
keiner bekannt / siehe Local-Fix
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
04.06.2014
08.09.2014
09.04.2015
Problem behoben ab folgender Versionen (IBM BugInfos)
Problem behoben lt. FixList in der Version
10.5.0.4 FixList