Re: Using SQL for File Record Comparison

Yup...I understand what you mean and I agree. The records in each file
are unique by mdvnda and mdmdl...there is only one record in each file
with those unique values.

On 3/7/07, Alan Shore <AlanShore@xxxxxxxx> wrote:

Be careful with this - I think
Are the records unique, in the sense of mdvnda & mdmdl
If these are NOT unique then you wont have a one to one comparison from 1
file to the other file and my thinking is that record 1 on FILEA will equal
record 1 on FILEB, but record 2, 3, 4 & 5 on FILEB has the same mdvnda &
mdmdl as record 1 on FILEB, therefore record 1 on FILEA will not equal
records 2, 3, 4, & 5 on FILEB. Therefore the count will be 4.

Now - I've just re-read what I wrote. God I hope that makes sense.



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx

midrange-l-bounces@xxxxxxxxxxxx wrote on 03/07/2007 12:27:43 PM:

> Does this make sense? Is there a better way? I'm trying to find out if
> two files are the same. Here's my SQL statement:
>
> SELECT count(*) FROM firstlib/mhrdclp a, secondlib/mhrdclp b where
> a.mdvnda = b.mdvnda and a.mdmdl = b.mdmdl and (a.mddual <> b.mddual
> or a.MDCMFRT <> b.MDCMFRT or a.MDLP <> b.MDLP or a.MDSF <> b.MDSF)
>
> File MHRDCLP has the following fields:
> mdvnda
> mdmdl
> mddual
> mdcmfrt
> mdlp
> mdsf
>
> I want to see if I have any records that match mdvnda and mdmdl have
> any of the other four fields different.
>
> Thanks!
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