RE: Always return at least one value
- From: Stephen.Lee@xxxxxxxx
- To: oracle-l@xxxxxxxxxxxxx
- Date: Fri, 19 Mar 2004 10:45:35 -0600
Yeah. I was hoping I could avoid that additional select to check the
existence of the character in the table. With all the new functions that
keep popping up in Oracle SQL, I was hoping maybe there was one that was
like: If no rows then return this thing, otherwise give me the rows.
> -----Original Message-----
>
> How about this:
> select field from table where field='LITERAL'
> union all
> select '-' from dual
> where not exists(select field from table where field='LITERAL');
>
> I think that ought to do it....
>
> -Mark
>
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