Unable to extend temp segment by 128 (in Tablespace temp)

1. View the path to the data file store in the tablespace and whether it can be automatically extended

SELECT Tablespace_name, bytes/1024/1024 file_size_mb, file_name from Dba_data_files;

2. Set temporary data files to auto-expand

ALTER DATABASE Tempfile '/OPT/ORACLE/ORADATA/TEST/TEMP01.DBF ' autoextend on next 5m MaxSize Unlimited;

The extension table times is the following error

ERROR at line 1:ora-00376:file 201 cannot is read at this time

Ora-01110:data file 201: '/OPT/ORACLE/ORADATA/TEST/TEMP01.DBF '

3. View the status of a staging table

Select Name,status from V$tempfile

The reason: The temporary tablespace does not know what the reason is offline. Modified to online after successful modification

ALTER DATABASE Tempfile '/OPT/ORACLE/ORADATA/TEST/TEMP01.DBF ' online;

Database altered. Once again, the 2nd is OK.

Unable to extend temp segment by 128 (in Tablespace temp)