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

本站中文解释

Oracle视图V$CONTROLFILE提供有关实例控制文件的详细信息,如控制文件的文件名、路径、起始和当前块号。用户可以通过查询V$CONTROLFILE来检查控制文件的状态以及跟踪备份活动中已备份和未备份的控制文件块。另外,用户还可以使用V$CONTROLFILE视图来获取控制文件的大小、创建时间和其他视图状态信息。

V$CONTROLFILE视图可以用下面这个SQL语句来使用:

SELECT * FROM V$CONTROLFILE;

官方英文解释

V$CONTROLFILE displays the names of the control files.

Column Datatype Description

STATUS

VARCHAR2(7)

INVALID if the name cannot be determined (which should not occur); NULL if the name can be determined

NAME

VARCHAR2(513)

Name of the control file

IS_RECOVERY_DEST_FILE

VARCHAR2(3)

Indicates whether the file was created in the fast recovery area (YES) or not (NO)

BLOCK_SIZE

NUMBER

Control file block size

FILE_SIZE_BLKS

NUMBER

Control file size (in blocks)

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$CONTROLFILE 官方解释,作用,如何使用详细说明