Estimate Defragmentaton Benefits for a Bigfile Tablespace

Database: Oracle Database 19c Enterprise Edition Release – Production Version I write this post in order to follow step by step how a bigfile tablespace is created and managed in 19c. The main purpose is to find a way to estimate the space benefits of defragmenting the tablespace. I will use two methods: […]

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Starting Oracle SQL Developer with Custom Parameters

I recently worked at a Client that had the Windows desktop setup in a non-English language. Naturally, I did not get admin rights on the Client owned desktop so I could not change the sqldeveloper.conf SQL Developer config file which was stored in a ‘protected’ location. Using SQL Developer in a foreign, non-English language was […]

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Oracle Autonomous Transaction Processing: Client Setup

a. First step is the database creation. Quite straightforward: b. Next step is to a connection setup connection from local client: from the main datbase page we click the DB Connection button and download the client credentials: A zip archive will de downloaded into your local client machine. In my case, the file is called: […]

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Oracle Instant Client for macOS (Intel x86)

Oracle does not release anymore full client packages for the Mac clients. Therefore, we need to use the Instant Client from: The installation is quite simple but we need to rememeber that, in order to have a functional client for a DBA we would need to download three packages at least: Basic Package – […]

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Strange error when renaming a table

ORA-14047: ALTER TABLE INDEX RENAME may not be combined with other operations When we try to rename a table or index name in Oracle, we use a simple command as following If we put into schema names to this command, we can encounter ORA-14047 error.This error raises when we put schema name in front of […]

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