RE: SQL select by date

["Tyler, Matt" <mattt@xxxxxxxxxxxxxx>]

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
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