Hi friends,
As we know we can join tables by sub-queries, natural joins and union join so basically i want to know that , Which one of the basic approaches for joining tables and why ?
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Anuja PawarPosted Dec 6, 2011, 1:43 AM
http://support.sas.com/documentation/cdl/en/proc/61895/HTML/default/viewer.htm#a002473691.htm
http://www.sql-tutorial.net/SQL-JOIN.asp