Viewing Information About the SGA (115)-优快云博客

本文介绍了Oracle数据库中关于系统全局区(SGA)的一系列视图，包括V$SGA、V$SGAINFO等，这些视图提供了SGA及其各组件大小、内存使用情况等详细信息。

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V$SGA : Displays summary information about the system global area (SGA).
V$SGAINFO : Displays size information about the SGA, including the sizes of different SGA
components, the granule size, and free memory.
V$SGASTAT : Displays detailed information about the SGA.
V$SGA_DYNAMIC_COMPONENTS : Displays information about the dynamic SGA
components. This view summarizes information
based on all completed SGA resize operations since
instance startup.
V$SGA_DYNAMIC_FREE_MEMORY : Displays information about the amount of SGA
memory available for future dynamic SGA resize operations.
V$SGA_RESIZE_OPS : Displays information about the last 400 completed SGA resize
operations.
V$SGA_CURRENT_RESIZE_OPS : Displays information about SGA resize operations
that are currently in progress. A resize operation is an
enlargement or reduction of a dynamic SGA component.
V$SGA_TARGET_ADVICE : Displays information that helps you tune SGA_TARGET.[@more@]

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转载于:http://blog.itpub.net/10599713/viewspace-996394/