Create a functional index on the area of the circle.

对这个圆形区域创建一个函数索引。

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A buffer pool is an area of storage in memory into which database pages (containing table rows or index entries) are temporarily read and changed.

缓冲池是内存中的一块存储区域，用于临时读入和更改数据库页(包含表行或索引项)。

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This example shows how to create a functional index on the area of a circle.

本示例展示如何对圆的面积创建函数索引。

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In the last week or so it has been that the Empire State (NY area) Mfg Index, the Philadelphia Fed Index, and the Dallas (Texas area) Fed Index, plunged dramatically in May.

FORBES: Reality Bites Into Earnings That Follow Economy Lower

The European Commission said its economic sentiment index for the euro area fell to 101.1 in June from 101.8 in May, its sixth consecutive monthly slide.

BBC: ECB: European interest rates 'appropriate'

Away from the depressing housing industry, the reports have been of unexpected big declines in durable goods orders, in consumer confidence, construction spending, as well as slowing manufacturing growth as measured by the Chicago area PMI Index, and the national ISM Manufacturing Index.

FORBES: Even After Jobs Report, Fed Cannot Stop Runaway QE2