我正在尝试使用connect by获取记录的最高父级

Select distinct parent_box_id,box_id,
LEVEL,
SYS_CONNECT_BY_PATH(box_id, '>') "lineage"

  FROM box_lineage lineage
  where lineage.position = 1
        START WITH   box_id='00112233   '
   CONNECT BY   box_id = PRIOR parent_box_id
      ORDER SIBLINGS BY box_id;

结果
    parent child level hierarchy
    123456  789456  3   >00112233>963258>789456
    789456  963258  2   >00112233>963258
    963258  00112233    1   >00112233

我想要的只是123456 789456 3 >00112233>963258>789456
我不知道最高级别是2,3,4 5,6

我尝试了and level >=3level 1,但我只获得了最低级别

我在这里阅读了其他答案,但没有一个有效

最佳答案

AND CONNECT_BY_ISLEAF = 1添加到where子句。

08-25 10:28