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Re: REPOST: Encoding NULLs as sentinels/extents

From: SeuberthF <seuberthf_at_aol.com>
Date: 1 Dec 1998 15:57:06 GMT
Message-ID: <19981201105706.25184.00000739@ng143.aol.com>


A querry against null alwais causes a full table scan. Always try to work with a date.
If you do not have a date in your databse field insertet yet fill it for example with 1.1.1800 (if You have no start date filled) or 31.12.9999 (if you have no end date filled) and set this date as a default. Afterwards you do not have to querry agains null.
mfg
frank Received on Tue Dec 01 1998 - 09:57:06 CST

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