Question

i need to pass a parameter to stored procedure to get all rows which data type of column is Bit .
example :

select * from user where active = true   // get all actived users 
select * from user where active = false   // get all Not actived users

what can i do when i need to get all rows . i pass the active value as a parameter from C#

Answer 1

Use the ? to nullify your C# bool value:

bool? showActive = SomeCode();

Pass the potentially null showActive flag and update your SQL code with this:

select * from user where active = @showActive or @showActive is null

If the @showActive parameter passed is null, all rows will be returned.