Pattern 2: Simple inquiry with secondary data views.
模式2：对辅助数据视图的简单查询。
Pattern 3: Inquiry with aggregated secondary data views.
模式3：对聚合的辅助数据视图的查询。
The second level contains the private areas: the main and secondary room, both framing special views of the valley.
第二个层是私人活动的区域：主卧和次卧，这些房间都可以欣赏到山谷的优美景色。
Each table consists of one B-tree that contains the data, although there can be many secondary index B-trees used to provide different views of the data.
尽管可能有许多用于提供不同数据视图的辅助性索引B树，但每个表均由一个包含数据的B树组成。
This paper expounds some opinions and views of the lib erians of secondary normal school in aspect of all -round increasing the quality recently.
文章从几个方面阐述了当前中等师范学校图书馆员在全面提高素质方面的一些观点和看法。
The author puts forward his own views on the two issues in the secondary vocational education electrical materials in order to perfect the electric type teaching material.
本文对中等职业教育电学类教材中的两个问题提出了自己的看法，以期更加完善电学类教材。
The author puts forward his own views on the two issues in the secondary vocational education electrical materials in order to perfect the electric type teaching material.
本文对中等职业教育电学类教材中的两个问题提出了自己的看法，以期更加完善电学类教材。
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