In this article, we will cover building the flat-file database, regular-expression creation, and basic search and display.
在本文中，我们将介绍如何构建平面文件数据库，如何创建正则表达式，以及如何进行基本的搜索和显示。
The approach used in this article is to extract all of the individual words from a specified field in the entire flat-file database.
本文中使用的方法是从整个平面文件数据库中指定的字段中提取所有单个关键词。
Note that the code in this article does not search the LDAP data directly, but requires an export into a flat-file database before processing can occur.
本文中的代码不直接搜索LDAP数据，但需要导出到平面文件数据库中，然后再进行处理。
That's not to say that it is impossible to store complex data in a flat-file database; just that doing so can be more costly in time and processing power compared to a relational database.
这不是说用平面文件数据库不能存储复杂数据，而是若这样做要比用关系型数据库耗用更多的时间和处理能力。
That's not to say that it is impossible to store complex data in a flat-file database; just that doing so can be more costly in time and processing power compared to a relational database.
这不是说用平面文件数据库不能存储复杂数据，而是若这样做要比用关系型数据库耗用更多的时间和处理能力。
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