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DB2 - Problem description

Problem IC63186 Status: Closed

WRONG RESULTS WITH LIKE EXPRESSION USING '^' (CIRCUMFLEX
ACCENT)AND LANGUAGE AWARE COLLATION SEQUENCE

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
In a unicode database which was created with a "language aware 
collation" sequence, like "UCA500R1_LROOT_AN_CX_EX_FX_HX_NX_S2" 
we may see wrong results with pattern matching during a 
expression using LIKE and the character "^" (CIRCUMFLEX ACCENT). 
For example the following query retruns wrong result: 
 
db2 select case when '^' like '^' then 1 else 0 end from 
sysibm.sysdummy1 
 
1 
----------- 
          0 
 
This does not happen with the default collating sequence 
(IDENTITY).
Problem Summary:
Users Affected: ALL 
 
Problem Description: See Error Description. 
 
Problem Summary:  See Error Description.
Local Fix:
available fix packs:
DB2 Version 9.7 Fix Pack 1 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Solution
First fixed in DB2 UDB Version 9.7, FixPak 1 (build s091114)
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC63207 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
17.09.2009
15.12.2009
15.12.2009
Problem solved at the following versions (IBM BugInfos)
9.7.
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.1 FixList