UPDATE : create.sql

create.sql

@@ -2,13 +2,16 @@
 
 DROP TABLE Battle;
 DROP TABLE Own;
-DROP TABLE Conversation;
+DROP TABLE Message;
+DROP TABLE Belong;
+DROP TABLE ConvGroup;
 DROP TABLE User;
 DROP TABLE Skin;
 DROP TABLE Game;
 
 
 
+
 #Create the User table
 
 CREATE TABLE User (
@@ -65,3 +68,39 @@ CREATE TABLE Battle (
 	CONSTRAINT Fk_Loser FOREIGN KEY (Loser) REFERENCES User(ID),
 	CONSTRAINT Fk_Game FOREIGN KEY (Game) REFERENCES Game(ID)
 );
+
+
+
+#Create the Group table
+
+CREATE TABLE ConvGroup (
+	ID 		char(5) PRIMARY KEY,
+	Name 	varchar(20) NOT NULL
+);
+
+
+
+#Create the Message table
+
+CREATE TABLE Message (
+	ID 				char(5) PRIMARY KEY,
+	Message 		text NOT NULL,
+	IDSender		char(5) NOT NULL,
+	IDUserReceiver	char(5),
+	IDGroupReceiver char(5),
+	CONSTRAINT Fk_Sender FOREIGN KEY (IDSender) REFERENCES User(ID),
+	CONSTRAINT Fk_UsRec FOREIGN KEY (IDUserReceiver) REFERENCES User(ID),
+	CONSTRAINT Fk_GrRec FOREIGN KEY (IDGroupReceiver) REFERENCES ConvGroup(ID)
+);
+
+
+
+#Create the Belong Table
+
+CREATE TABLE Belong (
+	IDUser  	char(5),
+	IDGroup  	char(5),
+	CONSTRAINT Fk_UserID FOREIGN KEY (IDUser) REFERENCES User(ID),
+	CONSTRAINT Fk_Group FOREIGN KEY (IDGroup) REFERENCES ConvGroup(ID),
+	PRIMARY KEY (IDUser, IDGroup)
+);