edit Maciek comments

SQL stuff/Maciej_Domanski-EDABA_Lab-3.sql

@@ -1,12 +1,13 @@
 --Maciej Domañski 303853 - EDABA Lab 3
 ----------------------- INSERT TRIGGER -----------------------
 
+-- Run before/after trigger
 -- show club which budget was affected by inserting or deleting new/old player
 select * from club where id = 1
 -- show player who is inserted and by that affects club budget
 select * from player where id = 1000000
 
--- insert trigger creation
+-- Run to create trigger
 -- after inserting a player increase club budget by player value
 CREATE OR REPLACE trigger insert_player_trigger after insert on player
 for each row
@@ -16,19 +17,20 @@ begin
     where :NEW.club_id = id;
 end;
 
+-- Run to trigger trigger
 -- insert
 insert into player
 values(1000000, 5, 'striker', 3, 'valid', 5, 35, 1000, 20000000, 1)
 
 ----------------------- UPDATE TRIGGER -----------------------
 
--- Show data that is affected by triggers
+-- Run before/after trigger
 -- show competition where prize was updated which later changes club reputation
 select * from competition where id = 1
 -- show club affected by update trigger when competition prize is high enough
 select * from club where competition_id = 1
 
--- update trigger creation
+-- Run to create trigger
 -- updates club reputation if the competition the club is taking part in has high enough prize value
 CREATE OR REPLACE trigger update_trigger after update on competition
 for each row
@@ -38,6 +40,7 @@ begin
     where 200000 < :NEW.prize AND :NEW.id = competition_id;
 end;
 
+-- Run to trigger trigger
 -- update
 update competition
 set prize = 1234567
@@ -46,13 +49,13 @@ where id = 1;
 
 ----------------------- DELETE TRIGGER -----------------------
 
--- Show data that is affected by triggers
+-- Run before/after trigger
 -- show club which budget was affected by inserting or deleting new/old player
 select * from club where id = 1
 -- select player who is inserted and by that affects club budget
 select * from player where id = 1000000
 
--- delete trigger creation
+-- Run to create trigger
 -- after deleting a player decrease club budget by player value
 CREATE OR REPLACE trigger delete_player_trigger after delete on player
 for each row
@@ -62,7 +65,7 @@ begin
     where :OLD.club_id = id;
 end;
 
-
+-- Run to trigger trigger
 -- delete
 delete from player
 where id = 1000000