最重要的是，它假设您做过程序员测试――并且这些测试 每一次都 全部通过。
Most importantly, it assumes you have programmer tests -- and that they all pass all the time.
客户端应用程序通过调用存储过程只需要访问数据库一次就可以执行一系列本地操作，而不用多次访问数据库服务器。
A client application can call on the stored procedure to perform a series of native operations in one trip to the database, rather than involving multiple trips to the database server.
应用推荐