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SELECT ... WHERE ... NOT IN (SELECT ...); - Mailing list pgsql-sql

From Yon Den Baguse Ngarso
Subject SELECT ... WHERE ... NOT IN (SELECT ...);
Date
Msg-id 20020823033952.64A443955@sitemail.everyone.net
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Responses Re: SELECT ... WHERE ... NOT IN (SELECT ...);
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opennms=# SELECT eventid FROM tbl1;eventid
--------- 119064 119064  60116  16082  16082  16303  16082  92628  92628  60083
(10 rows)


opennms=# SELECT eventid FROM tbl2;eventid
--------- 123989 123989 123989  16134  16134  16368  16134  92685  92685  60115
(10 rows)


opennms=# SELECT eventid FROM tbl1 WHERE eventid NOT IN (SELECT eventid FROM tbl2);
eventid
---------
(0 rows)

I'm confused, the result should not 0 rows, right?

Pls Help. Am I missing something?

TIA.

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