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i want to validate three conditions in mobile number using sql server as follows;

The mobile number should not start with number zero.
The mobile number should not be null
The mobile number should not exceed 10 digits

for that how can i write the sql query.
please help me

Narasiman P.
Siddhesh Patankar 2-Jul-13 3:54am
Please tell the datatype you are using to in database to save save mobile no?? Is it varchar or bigint
[no name] 2-Jul-13 4:14am
it is varchar
Pheonyx 2-Jul-13 4:27am
Why do you want to do this validation in SQL? and not in the program (application/webpage) where the data is initially entered?

1 solution

You can use in the stored procedure used to INSERT,UPDATE during insertion to check the validity

CREATE PROCEDURE sproc_InsertMobNumber
@mobnumber varchar(10)
DECLARE @isvalid bit
SET @isvalid=0
IF(@mobnumber IS NOT NULL AND LEN(@mobnumer) = 10 AND SUBSTRING(@mobnumber,0,1) <> 0 )

SET @isvalid=1
SELECT @isvalid

If you want to give different error messages just use the conditions in IF to do so.

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