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Suppose your range was 2001-06-30 through 2003-06-30.
Would that logic allow 2002-12-31?  No.  Even without the typo on 
FROMmm/FROMdd.  Because not only is the month invalid, but so is the day.



Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





"Tyler, Matt" <mattt@xxxxxxxxxxxxxx> 
Sent by: midrange-l-bounces@xxxxxxxxxxxx
09/24/2004 03:11 PM
Please respond to
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>


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Subject
RE: SQL select by date






Rich,
                 How about this...

SELECT * FROM file WHERE
POSTCY between FROMYR and TOYR and
POSTMM between FROMDD and TODD and
POSTDD between FROMDD and TODD and

Where you could make this run in a *QMQRY object and pass all from and to 
as
variables or put into SQLRPGLE.  No need to create a new index or redesign
the file to hold true dates (the next best option if this will not work 
for
you). 

Thank you,
Matt Tyler
WinCo Foods, Inc
mattt@xxxxxxxxxxxxxx

-----Original Message-----
From: Rich Duzenbury [mailto:rduz-midrange@xxxxxxxxxxxxxxxxxxx]
Sent: Friday, September 24, 2004 11:41 a
To: ISeries Mailing List
Subject: SQL select by date

Hi,

I want to select some records via SQL that contain a transaction posting
date via a date range.  Unfortunately, the dates are stored in
components:

POSTCY  4,0
POSTMM  2,0
POSTDD  2,0

In order to do a range selection in a where clause, the date fields must
be concatenated together in some way.

This file has millions of records, and there is an index by POSTYY,
POSTMM, POSTDD.

What is the correct (efficient) way that will hopefully use the existing
index? 

Thanks.
--
Regards,
Rich

Current Conditions in Des Moines, IA
Few Clouds
Temp 71.6F
Winds out of the North at 6mph

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