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GDB有两个指定目标库查找目录的变量。
GDB has two variables to specify the search directories for target libraries.
验证目标文件夹和目标类定义有效并存在于目标库中。
Verify that the target folder and target class definition are valid and exist on the target library.
虽然性能上有点慢，但是SQL Replication在一些场景下表现良好，例如将源数据分配到大量目标库中。
While it is slower in performance, SQL Replication works very well in some scenarios, such as distribution of source data to large number of targets.
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