This solution gave me the result I need, but it seems the process takes
longer when COALESCE is added.
What do you mean with the comment of "and you are happy with its performance"
?
Does it have to do with performance?
Regards,
Jorge Maldonado
On Tue, Feb 5, 2013 at 10:07 PM, Jasen Betts wrot
On 2013-02-06, JORGE MALDONADO wrote:
> --f46d0401fb2fcb805e04d50354b1
> Content-Type: text/plain; charset=ISO-8859-1
>
> I have an UPDATE query with the following general structure:
>
> UPDATE table1 SET (SELECT field FROM table2 WHERE conditions ORDER BY
> order_field LIMIT 1)
assuming you mean
2013/2/6 JORGE MALDONADO :
> I have an UPDATE query with the following general structure:
>
> UPDATE table1 SET (SELECT field FROM table2 WHERE conditions ORDER BY
> order_field LIMIT 1)
>
> Is it possible to assign a default value in case no results are returned by
> the SELECT statement?
One opt
Hi Jorge,
Look on http://www.postgresql.org/docs/8.1/static/functions-conditional.html
Thanks,
Anton
On Feb 6, 2013, at 0:23, JORGE MALDONADO wrote:
> I have an UPDATE query with the following general structure:
>
> UPDATE table1 SET (SELECT field FROM table2 WHERE conditions ORDER BY
> order
I have an UPDATE query with the following general structure:
UPDATE table1 SET (SELECT field FROM table2 WHERE conditions ORDER BY
order_field LIMIT 1)
Is it possible to assign a default value in case no results are returned by
the SELECT statement?
Respectfully,
Jorge Maldonado