On Mon, May 19, 2008 at 03:36:39PM -0600, Scott Marlowe wrote:
> On Mon, May 19, 2008 at 4:51 AM, jrivero <godsea@xxxxxxxxx> wrote:
> > My problem is not that make update query.
> >
> >> update table set date=(select year || '-' || month || '-' || day || ' 01:00:00' as newdate from table)I'd guess the OP doesn't want the sub-query, if he posted the error
>
> Cast the output of those concatenations to date:
>
> update table set date=(select (year || '-' || month || '-' || day || '
> 01:00:00')::date as newdate from table)
message we'd know for sure. I'd guess something like:
update table set date=(year||'-'||month||'-'||day||'01:00:00')::date;
That'd be my guess too. OP's subquery is possibly returning more than one row, and hence an error.
If the "date" column really is of date type, then the final
"||'01:00:00'" is somewhat superfluous.
--
gurjeet[.singh]@EnterpriseDB.com
singh.gurjeet@{ gmail | hotmail | indiatimes | yahoo }.com
EnterpriseDB http://www.enterprisedb.com
Mail sent from my BlackLaptop device
