As with the basic changes, each query has its specification, the equivalent XQuery statement, and its result.

和基本变化一样，每个查询都有相当于XQuery语句的规范和结果。

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This paper introduces the basic query format and the applications of SELECT-SQL statement in the query, programming and statistical analysis of library's management.

介绍了查询语句的基本格式以及SELECT—SQL语句在图书馆管理的查询、编程、统计分析中的应用。

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