Question

Is it possible to determine the type of a local variable at runtime in TSQL?

For example, say I wanted to do something along these lines:

IF ( @value IS INTEGER ) 

Or

IF ( TYPEOF(@value) = <whatever> ) 

Does anyone know of any way to accomplish this?

EDIT: This is not for a specific task, this is more of a general knowledge question. I do appreciate answers that indicate that the type should be known since it is declared within the same batch, I am curious as to whether the type can be determined at runtime.

Answer 1

run this

declare @d int  select @d = 500  if cast(sql_variant_property(@d,'BaseType') as varchar(20))  = 'int' print 'yes' else print 'no'