mohamedshabban / OneToOneRelationshipSQL

One to One Relationship (1:1)

OneToOneRelationshipSQL

One to One Relationship (1:1)

CREATE TABLE Country ( CountryID INT IDENTITY PRIMARY KEY, Name VARCHAR(100) );

CREATE TABLE Capital ( CapitalID INT PRIMARY KEY, Name VARCHAR(100), FOREIGN KEY(CapitalID) REFERENCES Country(CountryID) );

INSERT INTO Country (Name) VALUES ('Nigeria'); INSERT INTO Country (Name) VALUES ('Ghana');

INSERT INTO Country (Name) VALUES ('South Africa');