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: Or 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

SQL Server 2005: Determine datatype of variable

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 )

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

run this

declare @d int

select @d = 500

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

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Answer