Oracle教程 2023-02-24

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

Oracle视图DBA_HIST_CURRENT_BLOCK_SERVER显示的是当前可用的块服务器（block server）的详细信息。这些信息包括：服务器名称、实例id、会话id、服务器进程id、块服务器主机名称、块服务器状态、视图时间戳等。

使用DBA_HIST_CURRENT_BLOCK_SERVER视图，可以便捷地查看可用服务器的运行状态和管理信息。可以通过以下SQL语句查看服务器信息：

SELECT * FROM DBA_HIST_CURRENT_BLOCK_SERVER;

DBA_HIST_CURRENT_BLOCK_SERVER displays historical statistics on the Global Cache Service processes (LMS) used in cache fusion.

This view contains snapshots of V$CURRENT_BLOCK_SERVER.

Column	Datatype	NULL	Description
`SNAP_ID`	`NUMBER`	`NOT NULL`	Unique snapshot ID
`DBID`	`NUMBER`	`NOT NULL`	Database ID for the snapshot
`INSTANCE_NUMBER`	`NUMBER`	`NOT NULL`	Instance number for the snapshot
`PIN0`	`NUMBER`		Pins taking less than 100 microseconds
`PIN1`	`NUMBER`		Pins taking 100 microseconds to 1 millisecond
`PIN10`	`NUMBER`		Pins taking 1 to 10 milliseconds
`PIN100`	`NUMBER`		Pins taking 10 to 100 milliseconds
`PIN1000`	`NUMBER`		Pins taking 100 to 1000 milliseconds
`PIN10000`	`NUMBER`		Pins taking 1000 to 10000 milliseconds
`FLUSH0`	`NUMBER`		Flushes taking less than 100 microseconds
`FLUSH1`	`NUMBER`		Flushes taking 100 microseconds to 1 millisecond
`FLUSH10`	`NUMBER`		Flushes taking 1 to 10 milliseconds
`FLUSH100`	`NUMBER`		Flushes taking 10 to 100 milliseconds
`FLUSH1000`	`NUMBER`		Flushes taking 100 to 1000 milliseconds
`FLUSH10000`	`NUMBER`		Flushes taking 1000 to 10000 milliseconds
`CON_DBID`	`NUMBER`		The database ID of the PDB for the sampled session
`CON_ID`	`NUMBER`		The ID of the container that `CON_DBID` identifies. 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