The end goal of this article's exercise was to prepare an existing dataset for spatial queries, including distance-based ones.
本文的最终目标是为进行空间查询(包括基于距离的查询)而准备现有的数据集。
Now that the spatial table is populated, it is time to add a spatial index to support spatial queries; in DB2 that is a grid index.
既然已经填充了空间表，就应该添加空间索引来支持空间查询了；在DB 2中这是一个网格索引。
The paper presents three methods of spatial queries: spatial Select Query, spatial Joint Query, and Nearest Neighbor Query.
该文还介绍了三种查询方法：空间选择查询、空间连接查询和最近邻居查询。
Spatial queries are one of the best examples to show locality of data access, in other words, geometries that are close to each other in the real world are often accessed together.
空间查询是展示局部数据访问(换句话说，现实中临近的几何图形常常被一起访问)的最好例子之一。
Spatial queries are one of the best examples to show locality of data access, in other words, geometries that are close to each other in the real world are often accessed together.
空间查询是展示局部数据访问(换句话说，现实中临近的几何图形常常被一起访问)的最好例子之一。
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