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Space reclaim using complete database export import

We had a non-prod database which was having more than 50% of space as free. Objective was to reclaim the space at OS level and release the space back to storage.
This is an Oracle E-Biz environment.
Ebiz Version – 12.2.2
Oracle DB version – 11.2.0.3
OS – 64 bit Oracle Linux

Tried to resize the datafile as much as possible but could not reclaim enough space. Hence thought of doing the full database re-org using export and import.

This document demonstrates step by step procedure with screenshots to do full database reorg using export/import

Full Database reorg using export-import

Post export/import, I was able to reclaim around 4 TB (65% reduction) of space.

Pls see the result below.

before_and_after

Hope this helps. Happy learning!!!

-Anand M

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anandmandilwar

Enterprise Solutions Architect with 8x AWS Certified & Project Management Professional (PMP). Passionate about solving customer problems through innovative solutions and improving operational efficiency by automating everything possible.

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About Me

I’m a Hands-On Technical & Entrprise Solutions Architect based out of Houston, TX. I have been working on Oracle ERP, Oracle Database and Cloud technologies for over 20 years and still going strong for learning new things.

You can connect me on Linkedin and also reach out to me

I am certified for 8x AWS, OCP (Oracle Certified Professionals), PMP, ITTL and 6 Sigma.

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