标题: ORA-01417: a table may be outer joined to at most one other table [打印本页] 作者: admin 时间: 2016-7-17 14:25 标题: ORA-01417: a table may be outer joined to at most one other table ORA-01417: a table may be outer joined to at most one other table Cause: a.b (+) = b.b and a.c (+) = c.c is not allowed Action: Check that this is really what you want, then join b and c first in a view.