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COMMON TABLE EXPRESSION

 
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perez_a

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Joined: 02 Feb 2006
Posts: 25
Location: Italy

PostPosted: Mon Jun 05, 2006 4:43 pm    Post subject: COMMON TABLE EXPRESSION
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I FRIENDS,
CAN ANYONE TELL ME WHAT TABLE EXPRESSIONS ARE?
THANKS IN ADVANCED
ALEX .
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anamikak

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Joined: 10 May 2006
Posts: 64
Location: Singapore

PostPosted: Tue Jun 06, 2006 12:21 pm    Post subject:
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Common Table expression is a new feature introduced in Db2 version 8 used for recursive queying. This idea has been ported from databases like SQL server and Oracle which support recursive query be means of "CONNECT BY PRIOR". You can give a reading to the site below for how to use recursive querying in DB2.
http://www-128.ibm.com/developerworks/db2/library/techarticle/dm-0510rielau/
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