RMAN will backup all data blocks that have ever been in use in database.
RMAN将备份已经在数据库中使用的所有数据块。
In the TDT you'll see two test action blocks with nested data.
在TDT中，你可以看到嵌套数据的两个测试动作块。
The program blocks at stream_select until data is ready.
程序将在stream_select停止，直至数据就绪。
Unfortunately, the read method also blocks until data is available, as does the write method.
不幸的是，read方法也要一直阻塞到数据可用为止，write 方法也一样，。
Likewise, a write call blocks until the data can be written.
同样，write调用会阻塞，直到可以写数据。
Can't we just keep it simple and pass simple blocks of data?
难道我们就不能让事情简单化来只传递数据块？
The data in Table 1 also show the properties of single diagnostic blocks.
表1中的数据也显示出单纯诊断性阻滞的特征。
The data in Table 1 also show the properties of single diagnostic blocks.
表1中的数据也显示出单纯诊断性阻滞的特征。
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