DB2 9.7 now USES the default-locking state so that readers will not wait for the outcome of a pending write.
现在，DB 2 9.7使用的默认锁状态允许读者不等待写操作的结果。
The process instance executes to the Retrieve message Receive activity, where the process will wait pending the arrival of a message for processing.
流程实例执行Retrieve Message Receive行为，在其中流程将等待消息的到来以进行处理。
Readers of data may have to wait for writers of the same data blocks in some very special cases of pending distributed transactions.
在有些非常特殊的场合下（挂起的分布式事务）读取数据需要等待改写数据产生的锁的释放。
应用推荐