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How to rename a Datafile with Extension .dbf?

How to rename a Datafile with Extension .dbf?

For example we have  added a datafile but we forgot to give the extension .dbf

Step 1. Shut down the Database

SQL> shutdown immediate;


Step 2. Startup the Database in Mount State

SQL> startup mount

Step 3. Now copy the datafile by renaming it with .dbf extension

$cp /u01/app/oracle/user2  /u01/app/oracle/user2.dbf


Step 4. Now rename database file at Database Level

SQL> alter database rename file ‘/u01/app/oracle/user2’ to ‘/u01/app/oracle/user2.dbf’;


Step 5. Now Open the Database

SQL> alter database open;



About Syed Saad Ali

As a certified and experienced Oracle Database Administrator with Almost 10 Years of Experience I am able to perform all levels of database maintenance and am fully qualified to do Oracle updates as well. Capitalizing on my interest in Business & IT both, I chose to navigate my career towards Enterprise Solutions, which has enabled me to excel in the combination of both. I have developed exceptional analytical skills that allow me to diagnose and take care of issues immediately. Extremely skilled in planning and execution of special projects in time- critical environments. Extensive knowledge in directing, coordinating and exercising concern authority for planning, organization, control and successful completions. Very skilled at solving customer relations issues by seeking first to understand and then to be understood. Effectively able to communicate with customers, vendors and management.

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