Question

How to find out the size of data type in sql. For example if i have declared a variable or column as

declare @test varchar(255)

Then i need the size of the variable data type @test to be shown as 255.

EDIT:Now, I know how to get it for the column, is there any way for variable?

Answer 1

You can use sql_variant_property.

declare @test varchar(255)
set @test = '' --Must assign a value
select sql_variant_property(@test, 'MaxLength')