Is it possible to map one Tablespace to many Tablespaces with impdp?

I got this question from one of my clients. He is going to migrate one database from one platform to another. In this database many users are sharing the same tablespace. For example: In the current database, all application users are sharing the tablespaces “USERS” The client wants to change this, so as each schema … Continue reading Is it possible to map one Tablespace to many Tablespaces with impdp?

Oracle Database 19c (19.3) Installation on the Oracle Cloud Compute Instance.

As, I already have access to one Oracle Cloud Free Compute Instance (Oracle Linux), then I decided to install Oracle database 19c there and create a test database. This time, I'll use a different technique by installing Oracle Database rpm.Oracle delivered the oracle database software as rpm for Linux since Oracle 18c. Installation procedure is … Continue reading Oracle Database 19c (19.3) Installation on the Oracle Cloud Compute Instance.

Oracle Read Only Tables

Starting from Oracle 11gR1, oracle allows us to change a table to be a read-only table. Let us have a quick demo: I'm connecting as user HR ( to a 19c pluggable database). I have a small table "DEPT": So, now I'm going to change the table to be read only table: Now let us … Continue reading Oracle Read Only Tables

The beauty of Visualization with Oracle Database

https://youtu.be/3N2wgayry4g ThanksAhmed

Oracle Listener 19c Starting Error

While starting a newly created Oracle 19c Listener, I received the following errors; C:\Users\win>lsnrctl start LSNR19C LSNRCTL for 64-bit Windows: Version 19.0.0.0.0 - Production on 06-SEP-2019 13:58:09 Copyright (c) 1991, 2019, Oracle. All rights reserved. Starting tnslsnr: please wait… Unable to OpenSCManager: err=5 TNS-12560: TNS:protocol adapter error TNS-00530: Protocol adapter error The listener configuration file … Continue reading Oracle Listener 19c Starting Error

Install Error [DBT-50000] Unable to check for available memory

While creating an Oracle 19c database I received this error: Install Error [DBT-50000] Unable to check for available memory After some research, I found the following workaround, to start the dbca with specific option: dbca -J-Doracle.assistants.dbca.validate.ConfigurationParams=false This fixed the error. ThanksAhmed

Oracle Database Password file presentation

https://youtu.be/sHUMO-uVYqU ThanksAhmed

Oracle Database 19c (19.3) Installation on Windows (Step-by-Step)

This is a quick post about installing Oracle Database 19c (19.3) on my laptop (Windows 10). Procedure will be presented as screen cast. As far as I remember, Oracle 19c was released during Mar-2019 for Linux, and during Apr-2019 for SPARC Solaris and during Jun-2019 for Windows,zLinux , HP and AIX Software Download: First of … Continue reading Oracle Database 19c (19.3) Installation on Windows (Step-by-Step)

Oracle Database 19c is now Available

Oracle Database 19c is now available for Linux x86-64. To download the software:https://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html Also, the documentation is available at: https://docs.oracle.com/en/database/oracle/oracle-database/19/books.html Enjoy ! ThanksAhmed