为了查看一个范例，创建一个返回部门号以及部门名，由部门所在地过滤结果的查询。
To see an example, create a query that returns a list department Numbers and names, filtered by their locations.
设计新的查询评估和查询计划变动的范例。
Devising new paradigms for query evaluation and query plan migration.
范例：您可以运行一次查询，然后当后台运行查询时开始处理一次缺陷。
Example: You can run a query, then start working on a defect while the query is running in the background.
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