MySql 鏈接查詢

鏈接包括內鏈接和外鏈接。mysql 經過鏈接運算符能夠實現多個表查詢。sql 1 內鏈接查詢code mysql> select * from students; +----+--------+-------+------+------+ | id | number | name | sex | age | +----+--------+-------+------+------+ | 1

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