Re: Min of decode explaination
- From: Raj Jamadagni <rjamya@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Thu, 29 Jul 2004 08:14:10 -0700 (PDT)
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@xxxxxxxxx> 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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