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Oracle中可以通过START WITH . . . CONNECT BY . . .子句来实现SQL的层次查询 其基本语法如下 select ... from tablename where 条件3 start with 条件1 connect by 条件2; 条件1 是根结点的限定语句,当然 ...
万望 发表于 2015-10-30 02:32 (ω清晨醒来点个赞赞赞
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