Oracle关联自己
Java代码
SELECT T.ID,
CASE
WHEN T.PARENT_ID = 0 THEN
T.NAME
ELSE
T2.NAME
END AS NAME,
CASE
WHEN T.PARENT_ID = 0 THEN
T.R
ELSE
T2.R
END AS R,
&oracle账号nbsp; D.NAME AS RNAME
FROM INFO T
LEFT JOIN INFO T2
ON T.PARENT_ID = T2.ID
LEFT JOIN DOMAIN D
ON (T.R || T2.R) = D.ID