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常用的Oracle 11g内存视图脚本有哪些

发表于:2025-02-02 作者:千家信息网编辑
千家信息网最后更新 2025年02月02日,今天就跟大家聊聊有关常用的Oracle 11g内存视图脚本有哪些,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。今天主要分享几个关于Oracle
千家信息网最后更新 2025年02月02日常用的Oracle 11g内存视图脚本有哪些

今天就跟大家聊聊有关常用的Oracle 11g内存视图脚本有哪些,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。

今天主要分享几个关于Oracle数据库的内存视图的脚本。

一、V$MEMORY_DYNAMIC_COMPONENTS

V$MEMORY_DYNAMIC_COMPONENTS displays information about the dynamic SGA components. This view summarizes information based on all completed SGA resize operations since instance startup. All sizes are expressed in bytes.

脚本: Provides information about dynamic memory components.

COLUMN component FORMAT A30  SELECT component,  ROUND(current_size/1024/1024) AS current_size_mb,  ROUND(min_size/1024/1024) AS min_size_mb,  ROUND(max_size/1024/1024) AS max_size_mb FROM v$memory_dynamic_components WHERE current_size != 0 ORDER BY component;

二、V$MEMORY_RESIZE_OPS

V$MEMORY_RESIZE_OPS displays information about the last 800 completed memory resize operations (both automatic and manual). This does not include in-progress operations. All sizes are expressed in bytes.

脚本:Provides information about memory resize operations.

SET LINESIZE 200 COLUMN parameter FORMAT A25 SELECT start_time,  end_time,  component,  oper_type,  oper_mode,  parameter,  ROUND(initial_size/1024/1024) AS initial_size_mb,  ROUND(target_size/1024/1024) AS target_size_mb,  ROUND(final_size/1024/1024) AS final_size_mb,  status FROM v$memory_resize_ops ORDER BY start_time;

三、V$MEMORY_TARGET_ADVICE

V$MEMORY_TARGET_ADVICE provides information about how the MEMORY_TARGET parameter should be sized based on current sizing and satisfaction metrics.

脚本3: Provides information to help tune the MEMORY_TARGET parameter.

SELECT * FROM v$memory_target_advice ORDER BY memory_size;

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