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---------- Forwarded Message ----------
Subject: Re: [SQL] Creating a function with single quotes
Date: Thursday 19 February 2009
From: Adrian Klaver <aklaver@comcast.net>
To: stayler@washoecounty.us
On Thursday 19 February 2009 7:41:11 am Shawn Tayler wrote:
> Hello,
>
> This has me befuddled. I am trying create a simple experiment, rather
> new to SQL and I am running into an issue with single quotes. All I can
> find on creating a function states the procedure should be contained
> within single quotes. My problem comes when I want to use a textual
> representation of an interval.
>
> create function csd_interval(integer) returns interval as
> 'BEGIN
> RETURN $1 * interval '1 msec'
> END;'
> LANGUAGE 'plpgsql';
>
> it always fails at the '1 msec' point.
>
> Suggestions?
> --
> Sincerely,
>
>
Two suggestions
One, double the quotes
create function csd_interval(integer) returns interval as'BEGINRETURN $1 * interval ''1 msec''END;'LANGUAGE 'plpgsql';
Two, better to use dollar quoting
create function csd_interval(integer) returns interval as$$BEGINRETURN $1 * interval '1 msec'END;$$LANGUAGE 'plpgsql';
See
http://www.postgresql.org/docs/8.3/interactive/plpgsql-development-tips.html
--
Adrian Klaver
aklaver@comcast.net
-------------------------------------------------------
--
Adrian Klaver
aklaver@comcast.net
