http://www.sql-ex.ru/learn_exercises.php#answer_ref

something like this, but a little more complicated 🙂

thank you guys, but this is still too complicated for me

Thanks!

It's like this in C#.

SqlCommand cmd = new SqlCommand("SELECT * FROM accounts WHERE (id=@id2 OR @id2 is null) AND (name=@name2 or @name2 is null) AND (last_name=@last_name2 or @last_name2 is null)",con);

if...