FW: Re: Part 1 of several - Converting a varchar to an interval

-------------- Forwarded Message: --------------
From: aklaver@comcast.net (Adrian Klaver)
To: Shawn <postgres@xmtservices.net>
Subject: Re: [SQL] Part 1 of several - Converting a varchar to an interval
Date: Wed, 26 Mar 2008 16:16:58 +0000
> 
> 
> 
> 
>  -------------- Original message ----------------------
> From: Shawn <postgres@xmtservices.net>
> > Hello,
> > 
> > I have several large tables, over 100 million records each.  One of the fields 
> > is callee 'duration'.  It is a varchar that contains what is essentially an 
> > integer that is the duration of an event in milleseconds.  Could someone tell 
> > me a simple way to convert a value such as 134987 stored in a varchar into an 
> > interval?
> > 
> > This will dovetail with my next question. 
> > 
> > Thanks for all the help both now and previous.
> > 
> > Shawn
> > 
> 
select ('134987'::int/1000.00) * interval ' 1 second' ;   ?column?-------------- 00:02:14.987(1 row)


Forgot to Reply All.
--
Adrian Klaver
aklaver@comcast.net