前面的英文比较简单就省略了......,重点看下面语句
Because of how Oracle resolves references, it is possible for an object to depend on the
nonexistence of other objects. This situation occurs when the dependent object uses areference that would be interpreted differently were another object present.
鉴于 Oracle 所采取的名称解析方式,有可能出现一个对象依赖于错误的引用对象
(referenced object)的情况,即一个依赖对象(dependent object)的引用可能
被 Oracle 解析到一个与此依赖对象本意不同的对象上。
出处10g -Object Name Resolution[OBJECT NAME RESOLUTION)