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DB2 - Problembeschreibung

Problem IC70000 Status: Geschlossen

INCORRECTLY BLANK PADDED OR CASE INSENSITIVE RESULTS ARE RETURNE DWHEN
COMPARING COLUMNS OF CERTAIN DATATYPES

Produkt:
DB2 FOR LUW / DB2FORLUW / 950 - DB2
Problembeschreibung:
The problem occurs when performing string comparisons between 
two columns and referencing any one or 
both of these columns in the output column list. Column 
can be of datatypes char, varchar, graphic, vargraphic and any 
user defined 
types. 
 
eg. To demonstrate the incorrect results: 
 
1. Blank padded results 
 
CREATE TABLE EMPLOYEE  ("PER_ID1" CHAR(12) NOT NULL ); 
CREATE TABLE PERSON  ("PER_ID2" CHAR(12) NOT NULL ); 
 
insert into employee values '1117592'; 
insert into person values '1117592 '; 
 
SELECT EMPLOYEE.PER_ID1 || '$' AS "EMPLOYEE.PER_ID1" , 
PERSON.PER_ID2 || '$' AS "PERSON.PER_ID2" 
FROM              EMPLOYEE 
  LEFT OUTER JOIN PERSON 
                  ON EMPLOYEE.PER_ID1 = PERSON.PER_ID2 
WHERE PERSON.PER_ID2 = '1117592' ; 
 
EMPLOYEE.PER_ID1 PERSON.PER_ID2 
---------------- -------------- 
1117592$         1117592$ 
 
1 record(s) selected. 
 
Note that the second output column PERSON.PER_ID2 should be 
'1117592 $' (with a blank character before $.) 
 
2. Case insensitive results 
create db testdb COLLATE USING UCA500R1_LEN_S2; 
 
create table tab1(i varchar(5)); 
create table tab2(j varchar(5)); 
insert into tab1 values('case'),('CASE'); 
insert into tab2 values('case'),('CASE'); 
 
SELECT i, j FROM ( 
               SELECT  ROW_NUMBER() OVER() AS RN, i, j FROM 
tab1,tab2 
               WHERE i = j ) 
where RN != 0; 
 
I     J 
----- ----- 
case  case 
CASE  CASE 
case  case 
CASE  CASE 
 
Expected results are: 
I     J 
----- ----- 
case  case 
CASE  case 
case  CASE 
CASE  CASE
Problem-Zusammenfassung:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See problem description                                      * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Please upgrade to DB2 v9.5 fix pack 7                        * 
****************************************************************
Local-Fix:
verfügbare FixPacks:
DB2 Version 9.5 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.5 Fix Pack 10 for Linux, UNIX, and Windows

Lösung
This problem was first fixed in DB2 v9.5 fix pack 7
Workaround
keiner bekannt / siehe Local-Fix
Bug-Verfolgung
Vorgänger  : APAR is sysrouted TO one or more of the following: IC71916 
Nachfolger : 
Weitere Daten
Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:
16.07.2010
14.10.2010
14.10.2010
Problem behoben ab folgender Versionen (IBM BugInfos)
9.5.FP7
Problem behoben lt. FixList in der Version
9.1.0.7 FixList
9.5.0.7 FixList