oracleCONNECTBYPRIOR叶子节点查找根节点
摘要:SELECTTRANS_IDFROMTRANS_INSTWHEREconnect_by_isleaf=1STARTWITHTRANS_ID=...
SELECT TRANS_ID
FROM TRANS_INST
WHERE connect_by_isleaf=1
START WITH TRANS_ID =480242
CONNECT BY PRIOR UP_TRANS_ID = TRANS_ID;
说明:
表TRANS_INST(TRANS_ID,UP_TRANS_ID)
480242表示树的任何一个节点
TRANS_ID子节点
UP_TRANS_ID父节点
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