2 Oracle Backup /Restore (1)

In this article, I am going to demo the basic Oracle Backup/Restore.

 

Find all the database files:

select name from v$datafile;

select name from v$tempfile;

select name from v$controlfile;

select member from v$logfile;

Offline backup/Cold backup

Shutdown the database server and use the operation command to copy.

 

Online Backup/Warm backup

-- Begin the backup for all datafile

alter database begin backup;

-- Begin backup for single data file

alter tablespace example begin backup;

-- Check if the data file is in backup mode

select * from v$backup;

• Shutdown the database server and use the operation command to copy.
• Also need to backup the parameter file.
• Backup the log file, archive the current log and backup the log use os command

ALTER SYSTEM ARCHIVE LOG current;

• Backup the control file

alter database backup controlfile to '/u01/app/oracle/control_back.ctl';

Database Recovery

-- shutdown the database and listener

-- startup listener

-- start database mount

-- recover database

-- alter database open

 

User Tablespace recovery

alter tablespace example offline immediate;

recover tablespace example;

alter tablespace example online;

 

 

DataFILE recovery

alter database datafile '/u01/app/oracle/oradata/oracledb1/system01.dbf' online;

recover datafile '/u01/app/oracle/oradata/oracledb1/system01.dbf';

alter database open;