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learntsql
524 Posts |
 Posted - 2010-05-15 : 02:21:20
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| Hi All,How to create check constraint to restrict the user to enter first character from A-Z second from 0-9, third from A-Z?TIA. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2010-05-15 : 03:47:46
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| ALTER TABLE tablename ADD CONSTRAINT CHECK (column LIKE [A-Z][0-9][A-Z])------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/ |
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learntsql
524 Posts |
Posted - 2010-05-15 : 05:49:12
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| Hi Visakh,I tried as"ALTER TABLE CheckCon ADD CONSTRAINT CHECK (CName LIKE [A-Z][0-9][A-Z])"I am getting error as"Incorrect syntax near the keyword 'CHECK'."Plz. look at it. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2010-05-16 : 08:15:50
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| [code]ALTER TABLE tablename ADD CONSTRAINT chk_column_name CHECK ([column_name] LIKE '[A-Z][0-9][A-Z]')[/code]------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/ |
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learntsql
524 Posts |
Posted - 2010-05-17 : 00:36:05
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| ThankQ. |
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visakh16
Very Important crosS Applying yaK Herder
52326 Posts |
Posted - 2010-05-17 : 12:21:03
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| welcome------------------------------------------------------------------------------------------------------SQL Server MVPhttp://visakhm.blogspot.com/ |
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Check Constraint Expression