MySql 链接查询

链接包括内链接和外链接。mysql 经过链接运算符能够实现多个表查询。sql 1 内链接查询code mysql> select * from students; +----+--------+-------+------+------+ | id | number | name | sex | age | +----+--------+-------+------+------+ | 1

>>阅读原文<<