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Record Insertion/Update time

Posted on 2002-05-22
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Last Modified: 2008-03-10
Is there a way to get the last record insert/update time in RDBMS. I am specifically looking if PostgreSQL database has a way to provide me this.

I know i can code for this in my every UPDATE/INSERT statement. But if i database can provide me this for every record without me doing any coding that would be great.

Help !!
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Question by:Jitu
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Guy Hengel [angelIII / a3] earned 50 total points
ID: 7026443
Unless you implement a strategy to log this, you don't have this information by the database.
Many database systems have some kind of transaction log, but performing an analysis of this takes huge time and often requires some tools...

Ususally, you use some kind of triggers, but I would have to look up how/if this works in PostgrSQL.

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by:Jitu
ID: 7026616
i think "last record insert/update time" is not clear enough.

What i mean is - for any record in the database i should be able to find out when was the record last updated.
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Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 7026627
You have to store this information per row... again, this is not implemented by default, so you need to implement this on your own...
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by:vbDoc
ID: 7027425
The accepted method is to use a trigger on UPDATE to put an entry in a LOG table. Then a simple SQL statement to find the entry.

Regards
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by:Jitu
ID: 7028819
So u mean i would have to put a trigger on update on all my  tables in the database ?
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by:Guy Hengel [angelIII / a3]
ID: 7028979
Absolutely...
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by:Jitu
ID: 7029005
Thanks Angel !!!
Oh the strange ways of Databases. !
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Author Comment

by:Jitu
ID: 7029006
if PostgreSQL has a facility do let me know. I don;t think it would have !
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