Re: Min of decode explaination

From: Raj Jamadagni <rjamya_at_yahoo.com>
Date: Thu, 29 Jul 2004 08:14:10 -0700 (PDT)
Message-ID: <20040729151410.91504.qmail@web50008.mail.yahoo.com>

Try

select min(plan_start_dt),

min(decode(ord_stat,'OP','',to_char(plan_start_dt,'dd-mon-yy'))) from test_tbl;

It's probably the implicit data conversion. ymmv
Raj
--- Lee Lee <dumbdba_at_yahoo.com> wrote:

> grrrrr.
>
> This should be an easy question.
>
> I have the following table:
>
> SQL> desc test_tbl
> Name Null? Type
> ----------------------------- -------- ------------
> PART_NBR CHAR(25)
> ORD_NBR CHAR(10)
> PLAN_START_DT DATE
> ORD_STAT CHAR(2)
>
>
>
>
> With the following data:
>
> PART_NBR ORD_NBR PLAN_STAR OR
> ------------------------- ---------- --------- --
> 1234-567 1002003004 07-DEC-04 FP
> 1234-567 1002003004 07-DEC-04 FP
> 1234-567 1002003004 06-DEC-04 FP
> 1234-567 1002003004 06-DEC-04 FP
> 1234-567 1002003004 03-DEC-04 FP
> 1234-567 1002003004 03-DEC-04 FP
> 1234-567 1002003004 02-DEC-04 FP
> 1234-567 1002003004 02-DEC-04 FP
> 1234-567 1002003004 01-DEC-04 FP
> 1234-567 1002003004 30-NOV-04 FP
> 1234-567 1002003004 29-NOV-04 FP
> 1234-567 1002003004 23-NOV-04 FP
> 1234-567 1002003004 22-NOV-04 FP
> 1234-567 1002003004 19-NOV-04 FP
> 1234-567 1002003004 18-NOV-04 FP
> 1234-567 1002003004 17-NOV-04 FP
> 1234-567 1002003004 16-NOV-04 FP
> 1234-567 1002003004 15-NOV-04 FP
> 1234-567 1002003004 11-NOV-04 FP
> 1234-567 1002003004 10-NOV-04 FP
> 1234-567 1002003004 10-NOV-04 FP
> 1234-567 1002003004 10-NOV-04 FP
> 1234-567 1002003004 09-NOV-04 FP
> 1234-567 1002003004 08-NOV-04 FP
> 1234-567 1002003004 05-NOV-04 FP
> 1234-567 1002003004 05-NOV-04 FP
> 1234-567 1002003004 03-NOV-04 FP
>
> Why does this query return different values for each
> column, shouldn't they be the same.
>
> SQL> select min(plan_start_dt),
> min(decode(ord_stat,'OP','',plan_start_dt))
>
> from test_tbl;
>
> MIN(PLAN_ MIN(DECOD
> --------- ---------
> 03-NOV-04 01-DEC-04
>
> 1 row selected.
>
>
> Thanks,
> Dummy
>
>
>
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Best Regards
Raj

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Received on Thu Jul 29 2004 - 10:10:43 CDT