Oracle教程 2023-02-27

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

Oracle视图 DBA_HIST_SQLCOMMAND_NAME 是收集和存储SQL指令历史跟踪信息的系统视图。使用此视图可以查看前1000次执行的指令名称，数量以及它们的次数。

使用 DBA_HIST_SQLCOMMAND_NAME 视图查看前1000次执行的指令情况，可以使用如下查询语句:

SELECT *
FROM dba_hist_sqlcommand_name
ORDER BY name;

可以查看某一指令的执行情况，可以使用如下查询语句：

SELECT *
FROM dba_hist_sqlcommand_name
WHERE name= name
ORDER BY count;

DBA_HIST_SQLCOMMAND_NAME displays the mapping between SQL opcodes and names.

Column	Datatype	NULL	Description
`DBID`	`NUMBER`	`NOT NULL`	Database ID
`COMMAND_TYPE`	`NUMBER`	`NOT NULL`	SQL command number
`COMMAND_NAME`	`VARCHAR2(64)`		SQL command name
`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

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