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create table staff like sakila.staff; insert into staff select * from sakila.staff; create table department ( department_id int auto_increment primary key , name varchar(64) ); insert into department (name) values ('Management'),('Sales'); ; ALTER TABLE staff add department_id int, add foreign (department_id) references department (department_id) update staff set department_id = (select department_id from department where name = 'Sales') ; select staff_id, department_id from staff;

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