Select * from users where userid 105 or 1 1 July 8, 2019 16 32 64 128 Select username password from users where user_id = 105 or 1=1 Select * from users where username = Select * from users where userid = 105 or 1=1 Select*from user Select * from users where id Select * from users where username = 'administrator'--' and password = ''