Oracle教程 2023-02-25

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

Oracle视图DBA_HIST_TEMPFILE该视图查看系统的临时文件使用情况，包括临时文件的名称、路径、使用大小、增长等情况。

使用方法：

1、查询指定的临时文件的使用情况，可以使用下面的SQL：

SELECT TEMPFILE_NAME, BYTES, BYTES_USED_DELTA, BYTES_FREE_DELTA, MAX_SIZE
FROM DBA_HIST_TEMPFILE
WHERE TEMPFILE_NAME = ‘TEMPFILENAME’;

2、查询当前系统所有临时文件使用情况，可以使用下面的SQL：

SELECT TEMPFILE_NAME, BYTES, BYTES_USED_DELTA, BYTES_FREE_DELTA, MAX_SIZE
FROM DBA_HIST_TEMPFILE;

DBA_HIST_TEMPFILE displays a history of the temp file information from the control file. This view contains snapshots of V$TEMPFILE.

Column	Datatype	NULL	Description
`DBID`	`NUMBER`	`NOT NULL`	Database ID
`FILE#`	`NUMBER`	`NOT NULL`	File identification number
`CREATION_CHANGE#`	`NUMBER`	`NOT NULL`	Change number at which the temp file was created
`FILENAME`	`VARCHAR2(513)`	`NOT NULL`	Name of the temp file
`TS#`	`NUMBER`	`NOT NULL`	Tablespace number
`TSNAME`	`VARCHAR2(30)`		Name of the tablespace
`BLOCK_SIZE`	`NUMBER`		Block size of the temp file
`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