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September 5, 2016 09:20
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mysql create view alter table dump
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create table employees( | |
employee_id INT NOT NULL AUTO_INCREMENT, | |
employee_title VARCHAR(100) NOT NULL, | |
employee_author VARCHAR(40) NOT NULL, | |
submission_date DATE, | |
PRIMARY KEY ( employee_id ) | |
); | |
create table titles ( | |
id INT NOT NULL AUTO_INCREMENT, | |
title VARCHAR(100) NOT NULL, | |
PRIMARY KEY(id) | |
) ENGINE=InnoDb; | |
INSERT INTO titles (title) values ('foo'); | |
INSERT INTO titles (title) values ('bar'); | |
INSERT INTO titles (title) values ('buzz'); | |
alter table employees add title_id int not null; | |
alter table employees add constraint employees_titles_title_id | |
foreign key (`title_id`) | |
references `titles` (`id`); | |
create view employee_position as | |
select employee.employee_id as employee_id, | |
employee_title, | |
employee_author, | |
submission_date, | |
title | |
from employees | |
left join titles on employees.title_id=titles.id |
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