模块化，使相关联的组件联系到一起。一般情况下他们会是分散在你的应用系统中的。
To modularize how dependencies between parts of your application are laced up. It is common having this scattered all over.
同样，要考虑重构您的会话虚包，使它们与单个“网关”实体相关联，该实体是代码的起始点。
Also, consider refactoring your session facades so that they are associated with a single "gateway" entity that is the natural starting point for the code.
模式具有相关联的特权，使模式所有者能够控制哪些用户有权在这个模式中创建、修改和删除对象。
Schemas have privileges associated with them, allowing the schema owner to control which users have the privilege to create, alter, and drop objects in the schema.
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