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Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-02 |
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# DBA_HIST_FILESTATXS

`DBA_HIST_FILESTATXS` displays information about file read/write statistics. This view contains snapshots of `V$FILESTAT`.

Column | Datatype | NULL | Description
--- | --- | --- | ---
`SNAP_ID` | `NUMBER` |  | Unique snapshot ID
`DBID` | `NUMBER` |  | Database ID for the snapshot
`INSTANCE_NUMBER` | `NUMBER` |  | Instance number for the snapshot
`FILE#` | `NUMBER` |  | File identification number
`CREATION_CHANGE#` | `NUMBER` |  | Change number at which the datafile was created
`FILENAME` | `VARCHAR2(513)` |  | Name of the datafile
`TS#` | `NUMBER` |  | Tablespace number
`TSNAME` | `VARCHAR2(30)` |  | Name of the tablespace
`BLOCK_SIZE` | `NUMBER` |  | Block size of the datafile
`PHYRDS` | `NUMBER` |  | Number of physical reads done
`PHYWRTS` | `NUMBER` |  | Number of times DBWR is required to write
`SINGLEBLKRDS` | `NUMBER` |  | Number of single block reads
`READTIM` | `NUMBER` |  | Time (in hundredths of a second) spent doing reads if the `TIMED_STATISTICS` parameter is `true`; `0` if `TIMED_STATISTICS` is `false`
`WRITETIM` | `NUMBER` |  | Time (in hundredths of a second) spent doing writes if the `TIMED_STATISTICS` parameter is `true`; `0` if `TIMED_STATISTICS` is `false`
`SINGLEBLKRDTIM` | `NUMBER` |  | Cumulative single block read time (in hundredths of a second)
`PHYBLKRD` | `NUMBER` |  | Number of physical blocks read
`PHYBLKWRT` | `NUMBER` |  | Number of blocks written to disk, which may be the same as `PHYWRTS` if all writes are single blocks
`WAIT_COUNT` | `NUMBER` |  | Wait Count
`TIME` | `NUMBER` |  | Wait Time