Using Default Parameter in Store Procedure

Sometime you need to create parameter with default value in your store procedure. Here is a simple example of how to make it:

create proc dbo.sp_getemployee
@employeeid char(10)= ''
as
select * from master_employee
where employeeid = case when @employeeid = '' then employeeid else @employeeid end

In here, i make a default value which is an empty string. I'm using it to manipulate the data that if the value is an empty string than return all employee data from employee table.

Now i can use it as below :

exec sp_getemployee

which is return all the record from master_employee

or

exec sp_getemployee @employeeid = '000000001'

which is return record with employeeid = '000000001'

How owsome isn't it ? but be carefule, it doesn't work if you create a report using Crystal report. Because, the crystal report will still ask to fill the value into the paramater.

Ok, now you know how to make default value into parameter in store procedure. Try it ok. Have a nice day