我该如何解决这个错误:
ORA-017779: 无法修改映射到非键保留表的列。
我的代码:
UPDATE (SELECT SOBS034.T1 as OLD, SOBS063.T1 as NEW
FROM SOBS034
INNER JOIN SOBS063 ON SOBS034.ID = SOBS063.ID
where SOBS034.ID='111000' AND SOBS063.T2='' ) t
SET t.OLD =t.NEW