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Re: How to get table definition of a PostgreSQL table

From: Sandeep Khandelwal <sandeep_khandelwal27(at)yahoo(dot)com>
To: sdavis2(at)mail(dot)nih(dot)gov, pgsql-interfaces(at)postgresql(dot)org
Subject: Re: How to get table definition of a PostgreSQL table
Date: 2006-10-31 10:41:55
Message-ID: 20061031104155.31879.qmail@web33311.mail.mud.yahoo.com (view raw or flat)
Thread:
Lists: pgsql-interfaces
Thank you so much Sean.
 
Sandeep 


----- Original Message ----
From: Sean Davis <sdavis2(at)mail(dot)nih(dot)gov>
To: pgsql-interfaces(at)postgresql(dot)org
Cc: Sandeep Khandelwal <sandeep_khandelwal27(at)yahoo(dot)com>
Sent: Friday, October 27, 2006 4:23:18 PM
Subject: Re: [INTERFACES] How to get table definition of a PostgreSQL table


On Friday 27 October 2006 02:25, Sandeep Khandelwal wrote:
> Hi.
>
> I would like to get field's name, datatype of each field, length of each
> field and precision of each field of a PostgreSQL table. Please let me SQL
> query to get this information.

See these two chapters in the postgresql docs:

http://www.postgresql.org/docs/8.1/interactive/catalogs.html
http://www.postgresql.org/docs/8.1/interactive/information-schema.html

Each has advantages over the other.

Also, if you start psql with the flag --echo-hidden, when you do commands like 
\dt and \d+, psql will show you the sql it uses to produce that output.

Sean



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