RE: Dates

From: Jacques Kilchoer <Jacques.Kilchoer_at_quest.com>
Date: Fri, 25 Jun 2004 09:54:23 -0700
Message-ID: <B5C5F99D765BB744B54FFDF35F60262109F87936@irvmbxw02>

People have explained why your query is returning unexpected results. Here is how to correctly write your query. Correct version:

SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS >= to_date ('2004/06/25', 'YYYY/MM/DD') and NC_DATE_CLS < to_date ('2004/06/26', 'YYYY/MM/DD') ;

SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS between to_date ('2004/06/25', 'YYYY/MM/DD')

                       and to_date ('2004/06/26 23:59:59', 'YYYY/MM/DD

HH24:MI:SS') ;

Note that if you write your query as

SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS between to_date ('2004/06/25', 'YYYY/MM/DD')

                       and to_date ('2004/06/26', 'YYYY/MM/DD') ;

You will get different results - this will also include all records having the date/time Midnight 26 June 2004.

-----Original Message-----
From: Oracle

Can any please explain the reason for the differing results in the folowing
queries

1)
SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS LIKE
'25-JUN-04'
NCSN NC_DATE_CLS

--------- ---------
     3298 25-JUN-04
     3299 25-JUN-04

2)
SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS =
'25-JUN-04'
no rows selected

3)
SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS between
'25-JUN-04' AND '25-JUN-04';
no rows selected

4)
SELECT NCSN, NC_DATE_CLS FROM NONCONFORM WHERE NC_DATE_CLS between
'24-JUN-04' AND '26-JUN-04'
NCSN NC_DATE_CLS

--------- ---------
     3298 25-JUN-04
     3299 25-JUN-04

Table nonconform....columns....NCSN NUMBER, NC_DATE_CLS DATE...... Oracle 8.1.7

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Received on Fri Jun 25 2004 - 11:51:17 CDT