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Creating Auxiliary, Clone, Sandbox, Duplicate Database Using RMAN

Duplicating Target Database Using RMAN Auxiliary Database or Creating Auxiliary Database on the Same Server Using RMAN. We have Target Database name as ORCL And we are creating a Auxiliary database with name as AUXDB 1.Check log_mode of Target Database. Target must be in archivelog mode. Other put the database in archivelog mode. shutdown immediate startup mount alter database archivelog; alter database open; 2.Take Whole Hot/Cold Backup of Target Database RMAN backup database plus archivelog; 3.Create Pfile from Target Database Spfile SQL create pfile='C:\ORACLE\PRODUCT\10.2.0\DB_1\Database\initauxdb.ora' from spfile; 4.Open pfile with notepad and replace Ctrl + H all orcl to auxdb SQL host notepad C:\ORACLE\PRODUCT\10.2.0\DB_1\Database\initauxdb.ora 5.On Windows Platform You need to Create a new Instance for auxdb which also creates an password file for the same. SQL host oradim -new -sid auxdb -syspwd admin 6.Create All the folders in Oracle Folder Structures. SQL host mkdir C:\oracle\product\10.2.0\oradata\auxdb SQL host mkdir C:\oracle\product\10.2.0\flash_recovery_area\AUXDB SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb\adump SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb\bdump SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb\cdump SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb\dpdump SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb\pfile SQL host mkdir C:\oracle\product\10.2.0\admin\auxdb\udump 7.Connect to auxdb and startup instance at nomount stage. C:\set ORACLE_SID=auxdb C:\sqlplus / as sysdba SQL startup nomount //Instance started with pfile SQL create spfile from pfile; SQL shut immediate SQL startup nomount //Instance started with spfile now 8.Now set these two parameters to convert your datafiles and logfile names. SQL show parameter convert SQL alter system set db_file_name_convert = 'orcl','auxdb' scope=spfile; SQL alter system set log_file_name_convert = 'orcl','auxdb' scope=spfile; SQL shut immediate SQL startup nomount 9.Now you need to connect Recovery Manager to start the duplicating (cloning) process. C:\set ORACLE_SID=auxdb C:\rman auxiliary / RMAN connect target sys/admin@orcl RMAN run allocate auxiliary channel ch1 device type disk; allocate channel ch2 device type disk; duplicate target database to auxdb; 10.If all steps are done correctly you will have a new database clone created successfully.