hw2q3 done

Homeworks/hw2/hw1.py

@@ -17,22 +17,91 @@ def username():
 
 def query1():
 	return """
-
+SELECT
+	Fname,
+	Minit,
+	Lname
+FROM
+	cs448_employee ce
+WHERE
+	(
+	SELECT
+		COUNT(*)
+	FROM
+		cs448_dependent cd
+	WHERE
+		ce.Ssn = cd.Essn
+    ) >= 3
+	AND (
+	SELECT
+		SUM(Hours)
+	FROM
+		cs448_works_on cwo
+	WHERE
+		ce.Ssn = cwo.Essn
+    ) >= 30;
 """
 
 def query2():
 	return """
-
+UPDATE
+	cs448_dept_location
+Set
+	Dlocation = 'Lafayette'
+WHERE
+	Dnumber in
+	(
+	SELECT
+		Dnumber
+	From
+		cs448_department cd
+	WHERE
+		(
+		SELECT
+			COUNT(*)
+		FROM
+			cs448_employee ce
+		WHERE
+			cd.Dnumber = ce.Dnumber
+			) < 5)
 """
 
 def query3():
 	return """
-
+DELETE
+FROM
+	cs448_dependent
+WHERE
+	Essn in
+	(
+	SELECT
+		ce.Ssn
+	From
+		cs448_employee ce,
+		cs448_employee cem
+	WHERE
+		ce.Super_ssn = cem.Ssn
+		AND ce.Dnumber != cem.Dnumber)
   """
 	
 def query4():
 	return """
-
+SELECT
+	Fname,
+	Minit,
+	Lname
+From
+	cs448_employee
+WHERE
+	(Salary,
+	Ssn) IN (
+	SELECT
+		MAX(Salary),
+		Ssn
+	FROM
+		cs448_employee ce2
+	Group BY
+		ce2.Dnumber)
 """
 
 #Do not edit below