Thanks to Martijn and yourself Helen for headsup on the EXECUTE
STATEMENT angle,



CREATE PROCEDURE TEST3 (

WHERESTATEMENT1 VARCHAR(250)

) RETURNS (

TOTAL INTEGER

) AS

BEGIN

FOR EXECUTE STATEMENT

'SELECT count(l.urn) FROM log l left outer join patient p on (l.urn =
p.log_urn) WHERE p.area = ' || wherestatement1 INTO :TOTAL

DO BEGIN

SUSPEND;

END

END





SELECT * FROM TEST3('NHSD')



Only results in column unknown errors. Obviously I need a way to send
the 'NHS' instead of just NHSD to identify it as a value, I am sure this
works well for dynamically parsing tablenames or fieldnames but for
parsing string text values it appears to be limited. ? Although I am
probably just not doing it correctly ???



T.I.A

Martin

________________________________

From: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com] On Behalf Of Helen Borrie
Sent: 21 April 2005 15:44
To: firebird-support@yahoogroups.com
Subject: Re: [firebird-support] SP Parameter as sql statement ?



At 10:29 AM 21/04/2005 -0400, you wrote:

>You won't be able to go about this the way you are trying. If you are
>doing it for speed, you can make some evil hackery by passing in the
>param name (or some sort of identifier)

Not feasible without EXECUTE STATEMENT...and using EXECUTE STATEMENT
would
be relatively straightforward (no hackery).

>and having a big fat CASE statement.

Having a big heap of IF..ELSEs is what you intended, right? PSQL has no

CASE statement.

./heLen





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