validate the uniqueness of data first before inserting
validate the uniqueness of data first before inserting
- Subject: validate the uniqueness of data first before inserting
- From: Goh Keng Boon <email@hidden>
- Date: Wed, 16 Jun 2004 17:32:02 +0800
Hi,
I got this field called customer_code which is keyin by user manually
and it need to be unique. How can it check if it is unique first
before inserting the whole record into database?
Thanks alot.
KB
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