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Question:  Default Constraint

Answer: What is default constraint? How we you apply it?


September 09, 2008 11:19:52 #1
 veerun14   Member Since: September 2008    Total Comments: 3 

RE: Default Constraint
 
By default the columns hold NULL if nothing is specified.
You can specify NOT NULL if you dont want NULL to be an attribute

UNIQUE and CHECK are other constraints
     

 

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