Lecture 22: Prepare data for practice multi-table queries

Prepare data for practicing multi-table queries

Prepare a personnel information table and a department information table, and the two tables are associated with fields.

1. Department Information Sheet

1.1. Form statement for department information table

create table bmxxb (
	id int primary key auto_increment comment '部门ID',
	bmmc varchar(10) not null comment '部门名称'