还是先 Create table 吧
create table emp(
id int not null primary key,
name varchar(10)
);
http://www.gaodaima.com/?p=37120数据库学习:mysql Join详解_sqlserver
create table emp_dept(
dept_id varchar(4) not null,
emp_id int not null,
emp_name varchar(10),
primary key (dept_id,emp_id));
insert into emp() values
(1,”Dennis-1″),
(2,”Dennis-2″),
(3,”Dennis-3″),
(4,”Dennis-4″),
(5,”Dennis-5″),
(6,”Dennis-6″),
(7,”Dennis-7″),
(8,”Dennis-8″),
(9,”Dennis-9″),
(10,”Dennis-10″);
insert into emp_dept() values
(“R&D”,1,”Dennis-1″),
(“DEv”,2,”Dennis-2″),
(“R&D”,3,”Dennis-3″),
(“Test”,4,”Dennis-4″),
(“Test”,5,”Dennis-5″);
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