为此，只需使用目标RDBMS的访问参数再次填充表单，将路径输入源xml文件，选择创建数据库选项，打开调试并让其运行即可！
To do this, simply fill up the form again with access parameters for the target RDBMS, input the path to the source XML file, select the option to create a database, turn on debugging and let it run!
在查看 DB2 为目标查询选择的访问路径时，问自己一个问题：DB2 应该为这个查询选择不同的访问路径吗？
When you've looked at the access path selected by DB2 for your target query, ask yourself this question: Should DB2 have selected a different access path for the query?
在路径分解和查询计划选择的过程中，利用查询树中的目标节点来避免中间结果的传递。
In the procedure of path decomposition and query plan selection, target node in the query tree is utilized to avoid the transfer of the intermediate results.
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