SQL Server 2008 R2: Prepare Dynamic WHERE Clause

Question

I have the following stored procedure with four parameters.

Stored procedure spTest:

CREATE PROCEDURE spTest
    @Name varchar(20) = \'\         


        

Answer 1

You can use ISNULL and NULLIF also in this case:
below code should work :

CREATE PROCEDURE spTest
    @Name varchar(20) = '',
    @Address varchar(100) = '',
    @City varchar(50) = '',
    @Pin varchar(50) = ''
AS
    SET @Name=NULLIF(@Name,'')
    SET @Address=NULLIF(@Address,'')
    SET @City=NULLIF(@City,'')
    SET @Pin=NULLIF(@Pin,'')

    SELECT * 
    FROM Test_Table 
    WHERE Name = ISNULL(@Name,Name)
    AND Address = ISNULL(@Address,Address)
    AND City = ISNULL(@City,City)
    AND Pin = ISNULL(@Pin,Pin)

GO