Re: Begin / End blocks

You can make it a function but you can also do

BEGIN;

SELECT CASE WHEN (SELECT SUM(*) FROM table) < 1500
                 THEN (INSERT INTO new_table (SELECT * FROM table))
            ELSE ''f'' END AS test;
END;

I have not tested it but it should work.

HTH

Darren Ferguson

On Tue, 14 May 2002, Johnson, Shaunn wrote:

> Howdy:
>
> Running Postgres 7.1.3 on RedHat Linux 2.4.7-rel 10.
>
> I'm trying to learn how to use the BEGIN / END
> blocks.  My goal is to test the count
> of a table and do such and such from there.
>
> [pseudo code]
>
> begin
>     if
>         select sum (*) from table < 1500
>     then
>         select into new_table * from table
>     else
>         return ''f'';
>     end if;
> end
>
> [/code]
>
> questions:
>
> * Do I have to make this a function?
>
> * Is there a way to assign the value of
> the count (or, sum of records in table)
> to a variable and test for -that- ?
>
> * I'm looking at the postgresql.org site
> for examples, but all of the BEGIN / END
> blocks are within creating a function - I'm
> not sure I want to create one ...
>
> * I'm sure the code above is wrong
> (especially with the if statement) -
> where can I find better code (groups.
> google.com isn't working well, either).
>
> Thanks!
>
> -X
>