Database: college_3

Question: What are the names of departments either in division AS, or in division EN and in building NEB?
SQL: SELECT DName FROM DEPARTMENT WHERE Division  =  "AS" UNION SELECT DName FROM DEPARTMENT WHERE Division  =  "EN" AND Building  =  "NEB"

Question: What are the first names of all students that are not enrolled in courses?
SQL: SELECT Fname FROM STUDENT WHERE StuID NOT IN (SELECT StuID FROM ENROLLED_IN)