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the charts are to be in sql. Need some help around the primary keys and foreign keys CREATE TABLE Countries (     PRIMARY KEY()     CountryID int,     CountryName varchar(100),     Leader varchar(100),     Population int,     WarSide varchar(10)     MilitaryStrength int,     CasualitiesLost int,     WarOutcome varchar(30) ); --the two sides to the war CREATE TABLE Allies (     CountryID     CountryName     WarSide     TotalStrength     BattlesWon     BattlesInvolved     WarResult     TotalCasualties int, ); CREATE TABLE Central (     CountryID int,     CountryName     WarSide     TotalStrength     BattlesWon     BattlesInvolved     WarResult     TotalCasualties int, ); --many to many for countries and battles CREATE TABLE CountyBattles (     id int NOT NULL,     CountryID int,     BattleID int,     PRIMARY KEY (id),     CONSTRAINT fk1 FOREIGN KEY (CountryID)     REFERENCES Countries(CountryID),     CONSTRAINT fk2 FOREIGN KEY (BattleID)     REFERENCES Battles(BattleID) ); CREATE TABLE Battles (     BattleID int,     BattleName     BattleLocation     BattleDate     BattleResult     BattleCasualtiesTotal int, );

the charts are to be in sql. Need some help around the primary keys and foreign keys CREATE TABLE Countries (     PRIMARY KEY()     CountryID int,     CountryName varchar(100),     Leader varchar(100),     Population int,     WarSide varchar(10)     MilitaryStrength int,     CasualitiesLost int,     WarOutcome varchar(30) ); --the two sides to the war CREATE TABLE Allies (     CountryID     CountryName     WarSide     TotalStrength     BattlesWon     BattlesInvolved     WarResult     TotalCasualties int, ); CREATE TABLE Central (     CountryID int,     CountryName     WarSide     TotalStrength     BattlesWon     BattlesInvolved     WarResult     TotalCasualties int, ); --many to many for countries and battles CREATE TABLE CountyBattles (     id int NOT NULL,     CountryID int,     BattleID int,     PRIMARY KEY (id),     CONSTRAINT fk1 FOREIGN KEY (CountryID)     REFERENCES Countries(CountryID),     CONSTRAINT fk2 FOREIGN KEY (BattleID)     REFERENCES Battles(BattleID) ); CREATE TABLE Battles (     BattleID int,     BattleName     BattleLocation     BattleDate     BattleResult     BattleCasualtiesTotal int, );

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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the charts are to be in sql. Need some help around the primary keys and foreign keys

CREATE TABLE Countries (
    PRIMARY KEY()
    CountryID int,
    CountryName varchar(100),
    Leader varchar(100),
    Population int,
    WarSide varchar(10)
    MilitaryStrength int,
    CasualitiesLost int,
    WarOutcome varchar(30)
);

--the two sides to the war
CREATE TABLE Allies (
    CountryID
    CountryName
    WarSide
    TotalStrength
    BattlesWon
    BattlesInvolved
    WarResult
    TotalCasualties int,
);

CREATE TABLE Central (
    CountryID int,
    CountryName
    WarSide
    TotalStrength
    BattlesWon
    BattlesInvolved
    WarResult
    TotalCasualties int,

);


--many to many for countries and battles
CREATE TABLE CountyBattles (
    id int NOT NULL,
    CountryID int,
    BattleID int,
    PRIMARY KEY (id),
    CONSTRAINT fk1 FOREIGN KEY (CountryID)
    REFERENCES Countries(CountryID),
    CONSTRAINT fk2 FOREIGN KEY (BattleID)
    REFERENCES Battles(BattleID)
);

CREATE TABLE Battles (
    BattleID int,
    BattleName
    BattleLocation
    BattleDate
    BattleResult
    BattleCasualtiesTotal int,
);


FK PK Allies CountryID CountryName WarSide TotalStrength Battles Won BattlesInvolved WarResult TotalCasualties PK CountryID PK Countries CountryName Leader Population FK WarSide MilitaryStrength CasualitiesLost WarOutcome CountryBattles CountryID PK, FK PK, FK BattleID Battles ); Central FK CountryID BattleID BattleName BattleLocation Battle Date BattleResult BattleCasualties Total CountryName PK WarSide CREATE TABLE CountyBattles ( id int NOT NULL, CountryID int, BattleID int, PRIMARY KEY (id), Total Strength Battles Won BattlesInvolved WarResult TotalCasualties CONSTRAINT fk1 FOREIGN KEY (CountryID) REFERENCES Countries (CountryID), CONSTRAINT fk2 FOREIGN KEY (BattleID) REFERENCES Battles (BattleID)
Transcribed Image Text:FK PK Allies CountryID CountryName WarSide TotalStrength Battles Won BattlesInvolved WarResult TotalCasualties PK CountryID PK Countries CountryName Leader Population FK WarSide MilitaryStrength CasualitiesLost WarOutcome CountryBattles CountryID PK, FK PK, FK BattleID Battles ); Central FK CountryID BattleID BattleName BattleLocation Battle Date BattleResult BattleCasualties Total CountryName PK WarSide CREATE TABLE CountyBattles ( id int NOT NULL, CountryID int, BattleID int, PRIMARY KEY (id), Total Strength Battles Won BattlesInvolved WarResult TotalCasualties CONSTRAINT fk1 FOREIGN KEY (CountryID) REFERENCES Countries (CountryID), CONSTRAINT fk2 FOREIGN KEY (BattleID) REFERENCES Battles (BattleID)
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