oracle 進階 connect by 和level 的用法

Oracle中start with…connect by prior子句用法 connect by 是結構化查詢中用到的，其基本語法是： 1 select … from tablename 2 start with 條件1 3 connect by 條件2 4 where 條件3; 例： 1 select * from table 2 start with org_id = ‘HBHqfWGWPy

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