mySql随堂练习(4)
摘要:
create database mianshi5; use mianshi5; create table boys( boy_id int not null, boy varchar(10), toy_id int); create table toys( toy_id int primary ke 阅读全文
posted @ 2019-11-20 22:58 11-21 阅读(201) 评论(0) 推荐(0) 编辑