这些数据库调用会显示在序列图中，并且还会显示每次数据库访问的响应时间。
These database calls are shown in the sequence diagram along with the response time for each database hit.
必须谨慎使用悲观会话锁定，因为它在业务流程（包括用户思考时间）中序列化数据访问。
Pessimistic session locking should be used with great discretion, as it serializes access to data across a business process that includes user think time.
必须谨慎使用悲观会话锁定，因为它在业务流程（包括用户思考时间）中序列化数据访问。
Pessimistic session locking should be used with great discretion, as it serializes access to data across a business process that includes user think time.
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