So each time the EDLEVEL column value changes, the report breaks and the specified compute operation MAX is performed on the column SALARY.
所以每次当EDLEVEL列值改变时，报表将中断并对列salary执行指定的计算操作MAX。
Begins an asynchronous operation to open a communication object within a specified interval of time.
开始一个异步操作以在指定时间间隔内打开通信对象。
When overridden in a derived class, begins an asynchronous operation to reply to the request associated with the current context within a specified interval of time.
在派生类中重写时，开始进行异步操作，以在指定时间间隔内答复与当前上下文关联的请求。
Begins an asynchronous operation to transmit a message to the destination of the output channel within a specified interval of time.
开始一个异步操作，在指定时间间隔内向输出通道的目标传输消息。
When implemented in a derived class, begins an asynchronous operation to accept a channel of the type specified by the current channel listener within a specified interval of time.
当在派生类中实现时，开始一个异步操作以在指定时间间隔内接受当前通道侦听器指定的类型的通道。
When overridden in a derived class, closes the operation that is replying to the request context associated with the current context within a specified interval of time.
在派生类中重写时，关闭在指定时间间隔内正答复与当前上下文关联的请求上下文的操作。
Initiates an asynchronous peek operation that has a specified time-out and that USES a specified cursor, a specified peek action, and a specified state object.
启动异步查看操作，此操作具有指定的超时并使用指定的游标、指定的查看操作和指定的状态对象。
Begins an asynchronous operation to receive a message that has a specified time out and state object associated with it.
开始非同步的作业，接收具有已指定逾时以及与该作业关联之状态物件的讯息。
Begins an asynchronous operation to receive a message that has a specified time out and state object associated with it.
开始非同步的作业，接收具有已指定逾时以及与该作业关联之状态物件的讯息。
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