alter foreign key
ALTER TABLE Employee ADD FOREIGN KEY (DeptNo) REFERENCES Department(DeptNo);
Source: www.computerscienceai.com
mysql alter add foreign key
ALTER TABLE ordenes ADD ticket VARCHAR(50) NOT NULL; ALTER TABLE ordenes ADD CONSTRAINT fk_ticket FOREIGN KEY (ticket) REFERENCES tickets(ticket);
Source: es.stackoverflow.com
Add foreign key to existing table
ALTER TABLE message ADD FOREIGN KEY (sender) REFERENCES users;
Source: dba.stackexchange.com
Add foreign key to existing table
ALTER TABLE message ADD FOREIGN KEY (sender) REFERENCES users;
Source: dba.stackexchange.com
Add foreign key to existing table
ALTER TABLE message ADD FOREIGN KEY (sender) REFERENCES users;
Source: dba.stackexchange.com