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DB2 - Problem description

Problem IC89081 Status: Closed

DIFFERENT BEHAVIOUR IN DB2 WHEN USING ORACLE SYNTAX "CONNECT BY
NOCYCLE LEVEL"

product:
DB2 FOR LUW / DB2FORLUW / 970 - DB2
Problem description:
An example SQL: 
---------------------------------------------------------------- 
SELECT LEVEL FROM DUAL CONNECT BY NOCYCLE LEVEL <= 10 
---------------------------------------------------------------- 
 
Since the virtual table DUAL has 1 row, the intermediate result 
table Hn+1 would return the same row as the one that is already 
in the hierarchical path. According to the documentation, the 
NOCYCLE keyword will not include the repeated row. This is an 
intended behaviour in DB2, which is different from Oracle 
behaviour.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* ALL                                                          * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to DB2 Version 9.7 Fix Pack 9.                       * 
****************************************************************
Local Fix:
Rewrite the query using DB2 syntax. The following technotes may 
be of help: 
http://www.ibm.com/developerworks/data/library/techarticle/dm-05 
10rielau/ 
http://www.ibm.com/developerworks/ibmi/library/i-db2connectby/in 
dex.html
available fix packs:
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows

Solution
Upgrade to DB2 Version 9.7 Fix Pack 9.
Workaround
not known / see Local fix
BUG-Tracking
forerunner  : APAR is sysrouted TO one or more of the following: IC95385 IC96280 
follow-up : 
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
13.12.2012
18.12.2013
18.12.2013
Problem solved at the following versions (IBM BugInfos)
9.7.FP9
Problem solved according to the fixlist(s) of the following version(s)
9.7.0.9 FixList
9.7.0.9 FixList