摘要: # 方式一:create table t5( id int primary key auto_increment, name varchar(4), email varchar(10), unique key uni_name(name), index xxx(email));# 方式二:alter 阅读全文
posted @ 2020-09-10 14:54 投降输一半! 阅读(170) 评论(0) 推荐(0) 编辑