This is a powerful technique that lets you easily copy all or part of an existing table into a second table.
这是一种功能强大的技术，允许您很容易地将现有表的全部或部分复制到第二个表中。
In applications that do a great deal of copying of data between channels, the zero-copy technique can offer a significant performance improvement.
在需要在通道间大量拷贝数据的应用程序中，零拷贝技巧能够显著地提高性能。
To ensure these settings match, one technique is to copy the onconfig of the primary to the secondary, and then modify the few things that must be different, such as DBSERVERNAME.
要确保这些设置是匹配的，一种方法是将主服务器的 onconfig 复制到备用服务器，然后确保将一些设置修改为不同内容，比如 DBSERVERNAME。
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