Re: SELECT from multiple tables (not join though)

I hope I've read your question properly - I seem to be giving answers to
un-asked questions lately! ;)

How about...

SELECT file_name from file_info_1 WHERE file_name='/'
union
SELECT file_name from file_info_2 WHERE file_parent_name='/'
union
SELECT file_name from file_info_3 WHERE file_parent_name='/'
order by file_name;

Does that do what you want?

John Sidney-Woollett

Madison Kelly wrote:

> Hi all,
>
> I have another question, I hope it isn't too basic. ^.^
>
> I want to do a select from multiple tables but not join them. What I
> am trying to do is something like this (though this doesn't work as I
> need):
>
> SELECT a.file_name, b.file_name, c.file_name FROM file_info_1 a,
> file_info_2 b, file_info_3 c WHERE a.file_name='/' AND
> b.file_parent_dir='/' AND c.file_parent_dir='/';
>
> That returns every combination of the results from the three tables
> which is a huge number. What I need is to return all of the matches in
> all of the tables in a single column. Once I have all the matches in one
> column the next trick is to sort the combined results (any tips there?).
>
> I hope the question was clear. Please let me know if it wasn't. Thanks!
>
> Madison
>
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