Oracle 视图 V$PROXY_COPY_SUMMARY 官方解释,作用,如何使用详细说明

本站中文解释

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Oracle视图V$PROXY_COPY_SUMMARY主要用于查看全局卸载(unload)功能“proxy copy”执行的汇总信息。全局卸载(unload)功能“proxy copy”是指使用一个源中继服务器,从网络中的Instance对象中对对象数据进行拷贝的一种技术。V$PROXY_COPY_SUMMARY可以显示从unload “proxy copy”功能开始执行后,目标服务器收到消息的汇总信息,如装载过程中的内容读取行数,装载服务器的内存配置等等。

使用V$PROXY_COPY_SUMMARY视图,可以通过执行如下查询来获取汇总信息:

SELECT * FROM V$PROXY_COPY_SUMMARY;

官方英文解释

V$PROXY_COPY_SUMMARY provides summary information about the output proxy datafile and control file.

Column Datatype Description

NUM_COPIES

NUMBER

Number of copies created

NUM_DISTINCT_COPIES

NUMBER

Number of distinct copies (that contain datafiles with different checkpoints)

MIN_CHECKPOINT_CHANGE#

NUMBER

Minimum checkpoint change SCN

MAX_CHECKPOINT_CHANGE#

NUMBER

Maximum checkpoint change SCN

MIN_CHECKPOINT_TIME

DATE

Minimum checkpoint change time

MAX_CHECKPOINT_TIME

DATE

Maximum checkpoint change time

OUTPUT_BYTES

NUMBER

Total output bytes

OUTPUT_BYTES_DISPLAY

VARCHAR2(4000)

Displayable format for output bytes

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data


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