Re: OT: seeking query help, where?

I'd suggest something similar to, but slightly different from, what others
have:

SELECT DISTINCT email FROM (SELECT email FROM table_1 UNION SELECT
    email FROM table_2) AS combined;

that way you avoid duplicates across tables.

----------------------------------------------------------------------
Andrew J Perrin - http://www.unc.edu/~aperrin
Assistant Professor of Sociology, U of North Carolina, Chapel Hill
clists@perrin.socsci.unc.edu * andrew_perrin (at) unc.edu


On Thu, 16 Jan 2003, Tim Lynch wrote:

> First, sorry for the OT, flame me off-list!
>
> I'm a sysadmin being impressed into dba service. i've been getting along
> pretty well writing queries and making reports, but i've got some questions.
> suggestions for a good list/forum for help?
>
> from two tables both with email_addr columns, i want a distinct list of all
> email_addrs in one column. what i do now is select distinct on each and then
> sort -u the results.
>
> thanks in advance
> -t
>
>
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