Rodrigo De León wrote: <blockquote cite="[email protected]" type="cite"><pre
wrap="">OnJun 13, 11:17 am, <a class="moz-txt-link-abbreviated"
href="mailto:[email protected]">[email protected]</a>(Bob Singleton) wrote: </pre><blockquote type="cite"><pre
wrap="">Anysuggestions on how I can build a result set that would return
ASSET 001 AAA 1:00 (1 hour)
ASSET 001 BBB 0:10 (10 minutes)
ASSET 001 CCC 0:08 (8 minutes)
ASSET 001 DDD {difference between timestamp and now()}
ASSET 002 AAA 0:03 (3 minutes)
ASSET 002 BBB {difference detween timestamp and now()}
ASSET 003 AAA{diff between timestamp and now()} </pre></blockquote><pre wrap="">
SELECT
TYPE, ID, STATUS
, (COALESCE((SELECT MIN(DATETIME) FROM STATUSLOGWHERE TYPE = S.TYPE AND ID = S.ID AND DATETIME > S.DATETIME),
NOW()::TIMESTAMP)- DATETIME) AS DURATION
FROM STATUSLOG S
ORDER BY TYPE, ID, STATUS
---------------------------(end of broadcast)---------------------------
TIP 6: explain analyze is your friend
</pre></blockquote> Awesome - thank you very much! Slightly modified to collapse by TYPE / ID / STATUS<br /><br /><pre
wrap="">SELECT
TYPE, ID, STATUS, SUM( (COALESCE((SELECT MIN(DATETIME) FROM STATUSLOGWHERE TYPE = S.TYPE AND ID = S.ID AND DATETIME
>S.DATETIME), NOW()::TIMESTAMP) - DATETIME))
FROM STATUSLOG S
ORDER BY TYPE, ID, STATUS
Thanks for the lesson!
Bob Singleton
</pre>
