I have oracle 9i database and 10g database in the company which is used for testing purpose. The Database Size is 42 GB and the company decided to remove 2 year old data and take the export and store it on the DVD and use this server for different purpose.
I have deleted almost 90 % of the data from almost 100 tables but the size of the database is not reduced. The Database size is still the same.
I know that oracle 9i does not reclaim the free space. As far as i know for oracle 10g we can use shrink space or shrink space compact
So i need to reduce the size to as less as possible. So what is the best way to do that ?
Please let me know to reduce the size of the database for both 9i and 10g database ?
Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.
In several of the companies I have worked for, I noticed that corporate reporting is off loaded from the production database and done mainly on a clone database which needs to be kept up to date daily by various means, be it a logical…
This post first appeared at Oracleinaction (http://oracleinaction.com/undo-and-redo-in-oracle/)by Anju Garg (Myself).
I will demonstrate that undo for DML’s is stored both in undo tablespace and online redo logs. Then, we will analyze the reaso…