Try
select a.col1 as ename from a
union
select b.othercolumn as ename from b
order by ename
Give the columns you want to order on the same name using the "as XXX"
syntax, and remove the "a." prefix from the order statement.
John Sidney-Woollett
Antony Paul wrote:
> Hi,
> I need to use ORDER BY clause in a UNION query and the Order BY
> columns are not included in the SELECT statement. I tried like this
>
> (select .... from a) UNION (select ..... from b) order by a.ename;
>
> It says that
> ERROR: Attribute "ename" not found
>
> How to do this.
>
> rgds
> Antony Paul
>
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