标题: ORA-30370: set operators are not supported [打印本页] 作者: admin 时间: 2016-9-4 20:02 标题: ORA-30370: set operators are not supported ORA-30370: set operators are not supported in this context Cause: A set operator suchas UNION, UNION ALL, INTERSECT, or MINUS was
encountered in an unsupported context, such as in a materialized viewdefinition. Action: Re-specify theexpression to avoid the use of set operators.