SELECT Kids FROM Reservations WHERE CheckIn  =  "2010-09-21" AND FirstName  =  "DAMIEN" AND LastName  =  "TRACHSEL";
How many kids stay in the room DAMIEN TRACHSEL checked in on Sep 21, 2010?
SELECT Kids FROM Reservations WHERE CheckIn = `` 2010-09-21 '' AND FirstName = `` DAMIEN '' AND LastName = `` TRACHSEL '' ;
select kids from reservations where checkin = value and firstname = value and lastname = value
How many kids stay in the room DAMIEN TRACHSEL checked in on Sep 21 , 2010 ?