Using multiple inner joins and sorting result - sql

Question

In my DB there are three tables. I am trying to figure out how to List the school name, class name and teacher's name. Sort the records by class name within school name. I have a query but it is not working. How can I list the school name, class name and teacher's name and sort record by class name within school name?
SELECT c.class_name FROM class c INNER JOIN teacher t WHERE t.teacher_id = c.teacher_id INNER JOIN school s WHERE t.school_id = s.school_id;
TABLES
SQL> select * from class;
CLASS_ID CLASS_NAME TEACHER_ID MAX_SEATS_AVAILABLE
---------- ------------------- ---------- -------------------
1 Intro to ALGEBRA 11 12
2 Basic CALCULUS 2 10
3 ABC and 123 1 15
4 Sharing 101 8 10
5 Good Talk, Bad Talk 9 20
6 Nap Time 1 21
7 WRITing 101 5 10
8 Finger Painting 9 14
9 Physics 230 2 20
10 Gym 5 25
10 rows selected.
SQL> select * from teacher;
TEACHER_ID FIRST_NAME LAST_NAME T HOME_ROOM_NUM PHONE_NUM START_DAT HO SCHOOL_ID
---------- ---------------- ---------------- - ------------- ---------- --------- -- ----------
1 FRanK JOHNSON k 10C 22-OCT-97 In 11090
2 LISA JONES h 11Bc 317-587-90 19-JAN-15 iN 123134
87
3 Jeff Dafferty C W8CZ 12-DEC-96 OH 11546
4 Frank MARTIN g 12aA 212-098-98 19-JAN-15 IN 11090
76
5 John Smith H 34C 10-OCT-93 In 123134
6 John Smith G 34C 10-OCT-93 in 11090
7 Lisa Jones G 11E 317-587-90 19-JAN-15 IN 123134
87
8 Trevor Horse k x 19-JAN-15 Oh 11090
9 Gregor Ivan K 12A 317-987-09 10-NOV-96 KY 11090
87
10 Gregor Ivan g 12A 317-987-09 10-NOV-96 Ky 11090
87
11 Pat Francis H 1z1a 123-317-09 19-JAN-15 Il 11546
12
12 Brad Smith G 13A 18-NOV-94 IN 11546
12 rows selected.
SQL> select * from school;
SCHOOL_ID SCHOOL_NAME SCHOOL_TYPE
---------- ----------------------------- ------------
11546 Ivy Tech College COLLegE
11090 LAWRENCE Central Grade School GRADE SCHOOL
11111 Lawrence NORTH High School HIGH SCHooL
19283 Howe High SCHOOL High SchooL
123134 Lawrence Central High School HIGH SCHOOL
192 Little Big Horn Grade School GRADE SCHOOL

Answer 1

You can use the join to get what you want. This will give the all schools with the teachers and there classes.
SELECT DISTINCT
sc.SCHOOL_NAME,
teach.FIRST_NAME,
teach.LAST_NAME ,
cs.CLASS_NAME
FROM
school sc JOIN teacher teach
ON sc.SCHOOL_ID = teach.SCHOOL_ID
JOIN class cs ON cs.TEACHER_ID = teach.TEACHER_ID
ORDER BY
sc.SCHOOL_NAME,cs.CLASS_NAME

Answer 2

SELECT t.FIRST_NAME +' '+t.LAST_NAME, s.SCHOOL_NAME, c.class_name
FROM class c
INNER JOIN teacher t
ON t.teacher_id = c.teacher_id
INNER JOIN school s
ON t.school_id = s.school_id
ORDER BY s.SCHOOL_NAME,c.CLASS_NAME