Oracle 视图 DBA_ADVISOR_RATIONALE 官方解释,作用,如何使用详细说明

本站中文解释

Oracle视图DBA_ADVISOR_RATIONALE,它描述了一些自动化管理建议以及让DBA更好地理解自动服务工具建议的原因。该视图通过将各种可用的SQL和ADDM报告的指导思想的信息组合在一起,以清楚地汇总其建议。

使用此视图,DBA可通过检查它们的视图来查看关于某个建议的建议原因。例如,基于查询指标分析结果,DBA可以查看相应建议的相关勾选原因。

使用DBA_ADVISOR_RATIONALE视图,DBA可以了解Oracle自动服务工具对其系统做出哪些建议,以及这些建议的支撑理由。因此,DBA_ADVISOR_RATIONALE视图为DBA提供了一种与Oracle自动服务工具交互的方式,帮助他们掌握系统的性能状况以及Oracle自动服务工具提出的建议。

官方英文解释

DBA_ADVISOR_RATIONALE displays information about the rationales for all recommendations in the database.

Related View

USER_ADVISOR_RATIONALE displays information about the rationales for the recommendations owned by the current user. This view does not display the OWNER column.

Column Datatype NULL Description

OWNER

VARCHAR2(128)

Owner of the task

TASK_ID

NUMBER

NOT NULL

Identifier of the task

TASK_NAME

VARCHAR2(128)

Name of the task

EXECUTION_NAME

VARCHAR2(128)

The name of the task execution with which this entry (row) is associated

REC_ID

NUMBER

Recommendation associated with the rationale

RATIONALE_ID

NUMBER

NOT NULL

Unique identifier for the rationale

IMPACT_TYPE

VARCHAR2(4000)

Impact on the system due to the problem described in the rationale. The impact can be described in terms of time, cost, or % degradation.

IMPACT

NUMBER

Calculated impact value

MESSAGE

VARCHAR2(4000)

Message containing an overview of the rationale

OBJECT_ID

NUMBER

Identifier of an object specified in the DBA_ADVISOR_OBJECTS view

TYPE

VARCHAR2(30)

Type of the rationale; defines what data exists in the attribute columns and how to interpret it:

  • TEXT – Text sentence for descriptive messages. The ATTR1 column contains the text.

  • CHART – Chart containing data to be displayed. The ATTR1 column contains the data.

ATTR1

VARCHAR2(4000)

Parameters defining the rationale

ATTR2

VARCHAR2(4000)

Parameters defining the rationale

ATTR3

VARCHAR2(4000)

Parameters defining the rationale

ATTR4

VARCHAR2(4000)

Parameters defining the rationale

ATTR5

CLOB

Parameters defining the rationale

See Also:

“USER_ADVISOR_RATIONALE”


数据运维技术 » Oracle 视图 DBA_ADVISOR_RATIONALE 官方解释,作用,如何使用详细说明