现在我们将带领您一步步地完成一个示例，该示例展示了如何创建DB 2数据库，以及如何创建您自己的查询视图。
We now take you though a step-by-step example showing how to create a DB2 database and how to create your own Query Views.
同样地，如果星号出现在查询词末尾，程序将把该星号视为要求指定的查询必须以该词前面的部分为开始。
Similarly, if the asterisk appears at the end of the query word, the program will treat that as requiring the word to begin with the specified query.
这使得查询优化器可以更有效地分析复杂的查询，因为现在统计信息近似地反映实际成本。
This allows the query optimizer to do a better job of analyzing the complex query, as the statistics can now closely reflect the actual cost.
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