drill down query的意思|示意

Rough Query: Rough Query provides near-instantaneous results for users who need to drill down into very large volumes of data.

概略查询：概率查询技术使得用户需要对海量数据进行深入查询时能近乎实时地得到结果。

Additionally, if your statement references a view, Query Annotation provides the ability to drill down into the SQL query in the view.

另外，如果语句引用一个视图，Query Annotation 允许向下钻取到视图中的 SQL 查询。

Summary tables are required in a data warehouse for fast query processing and to allow users to drill up and down into the facts.

在数据仓库中需要汇总表，来实现快速查询，并允许用户在事实表中钻入钻出。

You can drill down multiple levels in a query to specify nested predicates, clauses, and expressions.

您可以在一个查询中钻取多层，以指定嵌套的谓词、子句和表达式。

This can be facilitated using the query drill down feature.

这可以使用查询钻取特性来完成。

The steps below illustrate how to work with the Query Drill-Down feature.

下面的步骤说明如何使用查询钻取特性。