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 Database Design and Application Architecture
 Non-future dates, constraint on type
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srouse
Starting Member

7 Posts

Posted - 02/12/2010 :  11:22:18  Show Profile  Reply with Quote
I need a domain that will not allow future dates. i.e. <= getdate()
I've previously accomplished this with a rule, but since Microsoft is deprecating rules and recommending check constraints I need to change my ways.

Is it possible to put a check constraint on a user defined type?

I know I can add column constraints per table, but I would rather apply it to the datatype if possible.

Thanks

Scott

dportas
Yak Posting Veteran

United Kingdom
53 Posts

Posted - 02/12/2010 :  17:15:05  Show Profile  Reply with Quote
SQL User Defined Types are obsolete and deprecated. You could use a CLR UDT but I don't see much point just to add a <=GETDATE() constraint. My suggestion would be to use CHECK constraints on your columns. Or why not validate the value in a stored procedure.
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