lab5

lab1mon/lab1ex2.sql

@@ -14,7 +14,7 @@ BEGIN
   LOOP 
   FETCH c_pop INTO popul;
     EXIT WHEN NOT FOUND; 
-  maxpop = GREATEST(maxpop,popul);
+  maxpop = <ENTER>;
   END LOOP; 
  CLOSE c_pop; 
  RETURN maxpop;

lab5/lab5alter.sql

+
+
+ALTER TABLE TEAM
+	ADD Manager_name CHAR(20);
+

lab5/lab5create.sql

+
+
+create table team (
+	TNO		NUMERIC (2,0) CONSTRAINT PK_TEAM PRIMARY KEY,
+	TNA		CHAR (20),
+	GRP	 	CHAR (1) 
+);
+
+create table game (
+	GNO		NUMERIC CONSTRAINT PK_GAME PRIMARY KEY,
+	GAME_DATE	DATE,
+	TEAM_1		NUMERIC (2,0) CONSTRAINT REF_GAME_1 REFERENCES TEAM(TNO),
+	TEAM_1_GOALS	NUMERIC (2,0),
+	TEAM_2		NUMERIC (2,0) CONSTRAINT REF_GAME_2 REFERENCES TEAM(TNO),
+	TEAM_2_GOALS	NUMERIC (2,0),
+	ROUND		CHAR (7) 
+);
+

lab5/lab5games.sql

+insert into game values(1,'09-Jun-06',11,4,5,2,'first');
+insert into game values(2,'09-Jun-06',20,0,8,2,'first');
+insert into game values(3,'10-Jun-06',9,1,19,0,'first');
+insert into game values(4,'10-Jun-06',29,0,26,0,'first');
+insert into game values(5,'10-Jun-06',2,2,15,1,'first');
+insert into game values(6,'11-Jun-06',23,0,18,1,'first');
+insert into game values(7,'11-Jun-06',17,3,13,1,'first');
+insert into game values(8,'11-Jun-06',1,0,21,1,'first');
+insert into game values(9,'12-Jun-06',3,3,16,1,'first');
+insert into game values(10,'12-Jun-06',32,0,7,3,'first');
+insert into game values(11,'12-Jun-06',14,2,12,0,'first');
+insert into game values(12,'13-Jun-06',24,2,28,1,'first');
+insert into game values(13,'13-Jun-06',10,0,27,0,'first');
+insert into game values(14,'13-Jun-06',4,1,6,0,'first');
+insert into game values(15,'14-Jun-06',25,4,31,0,'first');
+insert into game values(16,'14-Jun-06',30,2,22,2,'first');
+insert into game values(17,'14-Jun-06',11,1,20,0,'first');
+insert into game values(18,'15-Jun-06',8,3,5,0,'first');
+insert into game values(19,'15-Jun-06',9,2,29,0,'first');
+insert into game values(20,'15-Jun-06',26,1,19,0,'first');
+insert into game values(21,'16-Jun-06',2,6,23,0,'first');
+insert into game values(22,'16-Jun-06',18,2,15,1,'first');
+insert into game values(23,'16-Jun-06',17,2,1,1,'first');
+insert into game values(24,'17-Jun-06',21,2,13,0,'first');
+insert into game values(25,'17-Jun-06',7,0,12,2,'first');
+insert into game values(26,'17-Jun-06',14,1,32,1,'first');
+insert into game values(27,'18-Jun-06',16,0,6,0,'first');
+insert into game values(28,'18-Jun-06',4,2,3,0,'first');
+insert into game values(29,'18-Jun-06',10,1,24,1,'first');
+insert into game values(30,'19-Jun-06',28,0,27,2,'first');
+insert into game values(31,'19-Jun-06',22,0,31,4,'first');
+insert into game values(32,'19-Jun-06',25,3,30,1,'first');
+insert into game values(33,'20-Jun-06',8,0,11,3,'first');
+insert into game values(34,'20-Jun-06',5,1,20,2,'first');
+insert into game values(35,'20-Jun-06',26,2,9,2,'first');
+insert into game values(36,'20-Jun-06',19,2,29,0,'first');
+insert into game values(37,'21-Jun-06',21,2,17,1,'first');
+insert into game values(38,'21-Jun-06',13,1,1,1,'first');
+insert into game values(39,'21-Jun-06',15,3,23,2,'first');
+insert into game values(40,'21-Jun-06',18,0,2,0,'first');
+insert into game values(41,'22-Jun-06',7,0,14,2,'first');
+insert into game values(42,'22-Jun-06',12,2,32,1,'first');
+insert into game values(43,'22-Jun-06',16,1,4,4,'first');
+insert into game values(44,'22-Jun-06',6,2,3,2,'first');
+insert into game values(45,'23-Jun-06',22,0,25,1,'first');
+insert into game values(46,'23-Jun-06',31,1,30,0,'first');
+insert into game values(47,'23-Jun-06',28,0,10,2,'first');
+insert into game values(48,'23-Jun-06',27,2,24,0,'first');
+insert into game values(49,'24-Jun-06',11,2,26,0,'second');
+insert into game values(50,'24-Jun-06',2,2,17,1,'second');
+insert into game values(51,'25-Jun-06',9,1,8,0,'second');
+insert into game values(52,'25-Jun-06',21,1,18,0,'second');
+insert into game values(53,'26-Jun-06',14,1,3,0,'second');
+insert into game values(54,'26-Jun-06',27,0,31,0,'second');
+insert into game values(55,'27-Jun-06',4,3,12,0,'second');
+insert into game values(56,'27-Jun-06',25,1,10,3,'second');
+insert into game values(57,'30-Jun-06',11,1,2,1,'quarter');
+insert into game values(58,'30-Jun-06',14,3,31,0,'quarter');
+insert into game values(59,'01-Jul-06',9,0,21,0,'quarter');
+insert into game values(60,'01-Jul-06',4,0,10,1,'quarter');
+insert into game values(61,'04-Jul-06',11,0,14,2,'semi');
+insert into game values(62,'05-Jul-06',21,0,10,1,'semi');
+insert into game values(63,'08-Jul-06',11,3,21,1,'playoff');
+insert into game values(64,'09-Jul-06',14,1,10,1,'final');
+insert into game values(65,'23-Jun-06',14,1,4,5,'first');
+

lab5/lab5groupA.sql

+
+
+create view t1_groupA
+	as
+select t1.tna name1, game_date, team_1_goals, t2.tna as name2, team_2_goals
+from team t1, team t2, game
+where t1.tno = team_1 AND t2.tno = team_2
+and t1.grp = 'A'
+and round = 'first';
+

lab5/lab5indexes.sql

+
+create index t1index on game( team_1 );
+create index t2index on game (team_2);

lab5/lab5query.sql

+
+
+select game.* 
+from game,team
+where tno = team_2
+and tna like 'Ang%'
+and game_date = '16-JUN-06';
+

lab5/lab5tables.sql

+
+
+/* The first view created counts the number of games which have been
+played. The count() function counts the number of records in each
+group (ie the number of games each team has played) and returns it
+in a column headed 'p' which is given as an alias after the function */
+drop view final_tables;
+drop view played;
+drop view wv;
+drop view lv;
+drop view dv;
+drop view gv;
+drop view goals_scored;
+
+create view played as
+select tna, count(*) p
+from team, game
+where (tno = team_1
+or tno = team_2)
+and round = 'first'
+group by tna;
+
+/* The next three views hold the following counts:
+
+	wins (w)
+	draws (d)
+	looses (l)
+	
+
+In addition for wins and draws the number of points gained is calculated
+using Postgres arithmetic operators. The results of these calculations
+are stored in the following columns:
+
+	wpts - points from wins
+	dpts - points from draws
+*/
+
+create view wv as
+select tna, count(*) w , count(*) * 3 wpts
+from team, game
+where ((tno = team_1
+and team_1_goals > team_2_goals)
+or (tno = team_2
+and team_2_goals > team_1_goals))
+and round = 'first'
+group by tna;
+
+create view dv as
+select tna, count(*) d , count(*) * 1 dpts
+from team, game
+where ((tno = team_1
+and team_1_goals = team_2_goals)
+or (tno = team_2
+and team_2_goals = team_1_goals))
+and round = 'first'
+group by tna;
+
+create view lv as
+select tna, count(*) l , count(*) * 0 lpts
+from team, game
+where ((tno = team_1
+and team_1_goals < team_2_goals)
+or (tno = team_2
+and team_2_goals < team_1_goals))
+and round = 'first'
+group by tna;
+
+
+
+/*
+The next  view uses the Postgres sum() function to calculate the 
+number of goals each team has scored. Records in the game table are
+grouped by team name and the sum() function calculates the sum of goals
+scored in each team's games as follows:
+
+	goals for - f
+	goals against - a
+	
+*/
+
+
+create view goals_scored as
+select tna,game_date ,team_1_goals f, team_2_goals a
+from team, game 
+where tno = team_1 and round = 'first'
+union
+select tna,game_date ,team_2_goals f, team_1_goals a
+from team, game 
+where tno = team_2 and round = 'first';
+
+
+create view gv as
+select tna, sum(f) f, sum(a) a from goals_scored group by tna;
+
+
+
+
+/* The last view uses the preceeding nine views to create an overall
+summary which represents the league table. The first part (ie the select
+part) identifies the attribute names to display. Most of these attributes
+have the Postgres function coalesce() applied to them. This function is used to convert
+any null values to a numeric zero - the result being headed by the name
+shown at the end of each of these lines. The last line in the select part 
+uses a similar approach and Postgres arithmetic operators to calculate the
+total number of points.
+The conditions in the where clause arrange that each of the views
+is joined to the played view. The (+) at the end of each line ensures that
+if a team had not for example scored any away wins 
+then its record would not be lost when performing the join. In other words, it
+computes an OUTER JOIN.
+*/
+ 
+create view final_tables as
+select 
+played.tna, 
+p, 
+coalesce(w, 0) w,
+coalesce(d,0) d,
+coalesce( l, 0) l,
+coalesce(f,0) f,
+coalesce(a,0) a,
+( coalesce(wpts,0)+coalesce(dpts,0)) pts,
+grp
+from played FULL OUTER JOIN wv ON played.tna = wv.tna 
+    FULL OUTER JOIN dv ON played.tna = dv.tna
+    FULL OUTER JOIN lv ON played.tna = lv.tna
+    FULL OUTER JOIN gv ON played.tna = gv.tna 
+    FULL OUTER JOIN team ON played.tna = team.tna;
+
+
+
+
+
+
+
+

lab5/lab5teams.sql

+insert into  team values(1,'Angola','D');
+insert into  team values(10,'France','G');
+insert into  team values(11,'Germany','B');
+insert into  team values(12,'Ghana','E');
+insert into  team values(13,'Iran','D');
+insert into  team values(14,'Italy','E');
+insert into  team values(15,'Ivory Coast','C');
+insert into  team values(16,'Japan','F');
+insert into  team values(17,'Mexico','D');
+insert into  team values(18,'Netherlands','C');
+insert into  team values(19,'Paraguay','B');
+insert into  team values(2,'Argentina','C');
+insert into  team values(20,'Poland','A');
+insert into  team values(21,'Portugal','D');
+insert into  team values(22,'Saudi Arabia','H');
+insert into  team values(23,'Serbia + Montenegro','C');
+insert into  team values(24,'South Korea','G');
+insert into  team values(25,'Spain','H');
+insert into  team values(26,'Sweden','B');
+insert into  team values(27,'Switzerland','G');
+insert into  team values(28,'Togo','G');
+insert into  team values(29,'Trinidad + Tobago','B');
+insert into  team values(3,'Australia','F');
+insert into  team values(30,'Tunisia','H');
+insert into  team values(31,'Ukraine','H');
+insert into  team values(32,'United States','E');
+insert into  team values(4,'Brazil','F');
+insert into  team values(5,'Costa Rica','A');
+insert into  team values(6,'Croatia','F');
+insert into  team values(7,'Czech Republic','E');
+insert into  team values(8,'Ecuador','A');
+insert into  team values(9,'England','B');
+