table name as variable within Function

Started by Clark Allanalmost 21 years ago2 messagesgeneral
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#1Clark Allan
clarka@gmail.com

Here is an example of what i would like to do...
---------------------------------------
CREATE FUNCTION fun_totalrecords(varchar) RETURNS int8 AS'
DECLARE
theTable ALIAS FOR $1;
result int := 0;
BEGIN
result = COUNT(*) FROM theTable; -- this is where i need help
RETURN result;

END; 'LANGUAGE 'plpgsql';
---------------------------------------
Thanks for the help....
Clark

#2Michael Fuhr
mike@fuhr.org
In reply to: Clark Allan (#1)
Re: table name as variable within Function

On Thu, Jul 07, 2005 at 12:22:38PM -0600, Clark Allan wrote:

Here is an example of what i would like to do...
---------------------------------------
CREATE FUNCTION fun_totalrecords(varchar) RETURNS int8 AS'
DECLARE
theTable ALIAS FOR $1;
result int := 0;
BEGIN
result = COUNT(*) FROM theTable; -- this is where i need help
RETURN result;

END; 'LANGUAGE 'plpgsql';

See "Executing Dynamic Commands" in the PL/pgSQL documentation:

http://www.postgresql.org/docs/8.0/static/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN

--
Michael Fuhr
http://www.fuhr.org/~mfuhr/