fname || ' ' || lname "fname" || ' ' || "lname" CONCAT(`customers`.`fname`, ' ', `customers`.`lname`) "fname" || ' ' || "lname" fullname fname || ' ' || lname "fname" || ' ' || "lname" CONCAT(`customers`.`fname`, ' ', `customers`.`lname`) "fname" || ' ' || "lname" fullname [Measures].[Store Sales] - [Measures].[Store Cost]