Date:         Sat, 14 Jul 2012 19:27:55 -0400
Reply-To:     bbser 2009 <bbser2009@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         bbser 2009 <bbser2009@GMAIL.COM>
Subject:      getting rid of redundant records from database
Content-Type: text/plain; charset="us-ascii"

Hi there,

I have a concern regarding how a database manages or updates it's records.
My raw data come from monthly dumps of a database. So there are a lot of
redundant records.
I would like to distill it by finding the first occurrence of each primary
key value. Is this method reliable?
I am worrying about two records from two months with the same primary key
value might be different. If this were true, then I would lose data by
distilling the raw data that way.

Any comments or suggestions are welcome! Thank you.

Regards, Max
(Maaxx)