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jcb267
Constraint Violating Yak Guru

291 Posts

Posted - 2009-01-18 : 11:39:55

I am using SQL 2005 (the free version). I created a table to store customers. I have a field in my table for DOB and would like to add a field for AGE and calculate age by subtracting the customer's DOB from the current date. Can anyone help me do that?

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2009-01-18 : 11:45:12

just use


UPDATE Customer
SET Age=CASE WHEN MONTH(DOB)>MONTH(GETDATE()) 
               OR (MONTH(DOB)=MONTH(GETDATE()) AND DAY(DOB)>DAY(GETDATE()))
             THEN DATEDIFF(yy,DOB,GETDATE())-1
             ELSE DATEDIFF(yy,DOB,GETDATE())
        END

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