Whenever you create a table, index, and view, and then drop the table, all objects dependent on that table are invalidated, including views, packages, package bodies, functions, and procedures.
当创建表以后，在建立索引，视图等。当删除表的时候，所有依赖于该表的对象都变的无效了，包括视图，包，包体，函数和存储过程。
Soon the clean, carpeted rooms above St. Patrick's housed a wilderness of ghostly plastic packages, some looking all too much like mummies, or less carefully embalmed dead bodies.
很快，这间干净、铺着地毯的在圣帕克里克大教堂之上的房间，封装了一个旷野上的鬼魂在塑料袋内，多少看起来太像是木乃伊了，至少也是小心地经过防腐的死尸（ ？
Soon the clean, carpeted rooms above St. Patrick's housed a wilderness of ghostly plastic packages, some looking all too much like mummies, or less carefully embalmed dead bodies.
很快，这间干净、铺着地毯的在圣帕克里克大教堂之上的房间，封装了一个旷野上的鬼魂在塑料袋内，多少看起来太像是木乃伊了，至少也是小心地经过防腐的死尸（ ？
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