现在大多数应用程序代码都在数据库服务器中维护和运行。
Most of the application code is now maintained and run in the database server.
对于长时间运行的流程，唯一的要求是一个可维护所有中间状态的数据库。
For long running processes, the only requirement is a database where all the intermediate statuses will be maintained.
它们的状态在一个数据库中进行维护，这意味着即使服务器停止，流程将从它中断的地方恢复运行。
The state is maintained in a database, which means that even if the server was to be stopped, the process resumes where it left off.
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