Labs

a.sql

@@ -0,0 +1,2 @@
+select firstName, lastName
+from Students

b.sql

@@ -0,0 +1,3 @@
+select firstName, lastName
+from Students
+order by lastName, firstName

c.sql

@@ -0,0 +1,3 @@
+select firstName, lastName
+from Students
+where pNbr like '1975%'

d.sql

@@ -0,0 +1,3 @@
+select firstName, pNbr
+from Students
+where substring(pNbr, LENGTH(pNbr) -1, 1) % 2 = 0

e.sql

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+select distinct pNbr
+from Students

f.sql

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+select courseName
+from Courses
+where courseCode like '%FMA%'

g.sql

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+select courseName
+from Courses
+where credits > 5

h.sql

@@ -0,0 +1,3 @@
+select courseCode
+from TakenCourses
+where pNbr = '790101-1234'

i.sql

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+select courseName, credits, courseCode, pNbr
+from Courses
+join Students on Students.pNbr
+where pNbr = '790101-1234'

j.sql

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+select sum(credits) as totalSum
+from Courses
+join Students on Students.pNbr
+where pNbr = '790101-1234'

k.sql

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+select avg(TakenCourses.grade) as averageGrade, Students.pNbr
+from TakenCourses
+join Students on TakenCourses.pNbr = Students.pNbr
+where TakenCourses.pNbr = '790101-1234'

l.sql

@@ -0,0 +1,5 @@
+select avg(TakenCourses.grade) as averageGrade, TakenCourses.courseCode, Courses.courseName, sum(Courses.credits) as totalCredits
+from TakenCourses
+join Students on TakenCourses.pNbr = Students.pNbr
+join Courses on TakenCourses.courseCode = Courses.courseCode
+where Students.firstName = 'Eva Alm'

m.sql

@@ -0,0 +1,4 @@
+select distinct firstName
+from Students
+left join TakenCourses on Students.pNbr = TakenCourses.pNbr
+where TakenCourses.pNbr is null

makefile

@@ -1,5 +1,5 @@
 DB_NAME := lab.db
-SQL_FILES := init.sql lab1.sql
+SQL_FILES := init.sql lab1.sql a.sql b.sql c.sql d.sql e.sql f.sql g.sql h.sql i.sql j.sql k.sql l.sql m.sql n.sql
 
 .PHONY: all clean
 

n.sql

@@ -0,0 +1,7 @@
+select Students.firstName, max(averageGrade) as maxAverage
+from (
+        select Students.pNbr, TakenCourses.grade, avg(grade) as averageGrade
+        from Students
+        join TakenCourses on Students.pNbr = TakenCourses.pNbr
+        group by Students.pNbr
+) as studentAverages