类之间的关系，以及程序逻辑都不会去考虑持久性存储的特征或者结构。
Neither the relationships between our classes, nor the application logic took into consideration the characteristics or structure of an underlying persistence storage.
切分的成本（或者说缺点）包括对如何存储和检索数据的特定应用程序逻辑进行编码的成本。
Sharding's costs (or cons) include the burden of coding application-specific logic for how data will be stored and retrieved.
存储过程对于在服务器上封装应用程序逻辑和数据库访问很有价值。
Stored procedures are valuable for encapsulating application logic and database access on the server.
可以认为触发器和存储过程相似，因为两者都是由存储于数据库级别的程序逻辑组成。
Triggers can be considered to be similar to stored procedures in that both consist of procedural logic that is stored at the database level.
可以认为触发器和存储过程相似，因为两者都是由存储于数据库级别的程序逻辑组成。
Triggers can be considered to be similar to stored procedures in that both consist of procedural logic that is stored at the database level.
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