作者:Elaine桑定_148 | 来源:互联网 | 2018-04-20 06:58
还是先Createtable吧createtableemp(idintnotnullprimarykey,namevarchar(10));createtableemp_dept(dept_idvarchar(4)notnull,emp_idintnotnull,emp_namevarchar(10),primarykey(dept_id,emp_id));insertintoemp()values(1,Denn
还是先 Create table 吧
create table emp(
id int not null primary key,
name varchar(10)
);
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");