Week 4 lab added.Implementing SPOE navigation

sql/dummy_data.sql

 INSERT INTO artist (id, first_name, last_name)
 
-        VALUES (NULL, 'Michael','Jackson'),(NULL, 'Taylor','Swift');
+        VALUES (NULL, 'Michael','Jackson'),(NULL, 'Taylor','Swift'),
+		(NULL, 'Jiyong','Kwon'),(NULL, 'Bruno','Mars'),
+		(NULL, 'Rick','James'),(NULL, 'Kanye','West'),
+		(NULL, 'Justin','Timberlake'),(NULL, 'Iggy','Azelea'),
+		(NULL, 'Pharell','Williams'),(NULL, 'Bob','Marley'),
+		(NULL, 'Phil','Collins'),(NULL, 'Sam','Smith');
 
 
 
 INSERT INTO record( title, artist_id, genre, year, price)
 
-        VALUES ('Thriller',1,'Pop',1983,4.95),
-
-               ('Bad Blood',1,'Pop',2014,3.99)
+        VALUES  ('Thriller',1,'Pop',1983,4.95),
+		('Bad Blood',2,'Pop',2014,3.99),
+		('22',2,'Pop',2012,3.99),
+		('One of a kind',3,'K-Pop',2012,3.99),
+		('Treasure',4,'Pop',2012,4.99),
+		('Give it to me baby',5,'Funk',1981,5.17),
+		('Stronger',6,'Hip-Hop',2007,5.92),
+		('Cry me a river',7,'RnB',2002,2.99),
+		('Trouble',8,'Pop',2014,2.49),
+		('Happy',9,'Pop',2014,3.26),
+		('Three little birds',10,'Reggae',1977,3.99),
+		('In the air tonight',11,'Rock',1981,2.10),
+		('Stay with me',12,'Soul',2014,1.99)
+