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
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
> (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
>
