标题: ORA-30399: a skip level must have at least [打印本页] 作者: admin 时间: 2016-9-4 20:10 标题: ORA-30399: a skip level must have at least ORA-30399: a skip level must have at least one column that allows NULLvalues Cause: A SKIP clause cannotbe specified with a level when all of the columns
that make up the level have NOT NULL constraints. Action: Drop the SKIP clause.