They can also store structured type columns or index data.
它们还可以存储结构化类型的列或索引数据。
A directory-type site might require an alphabetical list of names to look up, but this would not be a structured, topical index (as explained above).
一个目录型网站需要一个名称的字顺列表来查找,但该列表不是一个结构化的、主题化的索引(如前所述)。
The query on the index would have been performed using standard Structured Query Language (SQL).
对索引的查询将使用标准结构化查询语言(Structured Query Language,SQL)来执行。
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