MySQL-当嵌套选择使用该表时如何从表中删除？

MySQL-当嵌套选择使用该表时如何从表中删除？

您可能会收到此错误：

ERROR 1093 (HY000): You can't specify target table 'table_1' for update in FROM clause.

您应该能够使用MySQL的多表

DELETe

语法来做到这一点：

DELETE table_1.*FROM   table_1,       table_2,       table_3WHERe  table_1.id = table_2.table_1_idAND    table_2.id = table_3.table_2_idAND    table_3.id = 5

上面的查询应该可以工作，但是作为一般规则，我建议使用ANSI JOIN语法代替：

DELETe table_1.*FROM   table_1INNER JOIN table_2 on table_2.table_1_id = table_1.idINNER JOIN table_3 on table_3.table_2_id = table_2.idWHERe table_3.id = 5