Shulou(Shulou.com)06/01 Report--

Oracle is in archive mode:

I started to want to delete a data file in a tablespace separately.

First, query the information about the data file you want to delete:

Select * from v$datafile

Alter database datafile'/ data/gps03.dbf' offline

After changing the offline state, you can see the file that needs to be restored in v$recover_file.

Select * from v$recover_file

You can query the file# number of the file. Then check the select * from vault datafile; determine the location of the file.

3. After leaving the data file in offline, delete the data file:

Alter tablespace MCC01 drop'/ data/gps03.dbf'

Prompt to delete offline data files in local table space.

So I'm having this data file online.

Alter database datafile'/ data/gps03.dbf' online

The results also suggest that:

0RA-01113: file 8 requires media recovery.

ORA-01110: data file 8:'/ data/gps03.dbf'

So I executed:

Recover datafile 8; (note that this statement cannot be executed in plsql, otherwise it prompts an invalid sql statement)

After execution: prompt

Complete the media recovery.

4. Query v$recover_file again and find that there are no files to recover. In querying v$datafile, it is found that the status of this file is no longer in RECOVER state, but has become offline. Put it online again.

Alter database datafile 8 online

After executing the above statement, check the status of the data file in v$datafile and change it to online state.

5. Delete the data file again.

Alter tablespace MCC01 drop datafile 8

Delete the data file and finish here.

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