Polymorphic Table Functions in Oracle Database 18c

https://www.youtube.com/watch?v=VPX5MwHeC-4

Oracle Database 18c New Features in one Image

The following map contains a high-level summary of the key Oracle Database 18c new features.Compared to Oracle Database 12.2, 18c has 134 new features in different focus areas. [Please zoom in to see the below image clearly] For detailed information about all new features, please refer to the :Oracle Database 18c New Features Guide We … Continue reading Oracle Database 18c New Features in one Image

Oracle Backup & Recovery Hands-on Practice – Oracle Database 18c VM

Do you want to practice recovering from the following common failures (with a guided step-by-step procedure)?: Recovering from a critical file loss (SYSTEM , UNDO)Recovering from a non-critical file lossRecovering from the loss of the control fileRecovering from the loss of all control filesRecovering from the loss of an inactive redo log fileRecovering from the … Continue reading Oracle Backup & Recovery Hands-on Practice – Oracle Database 18c VM

How to Modify an Oracle Database Windows Service?

This is a quick post about how we can change some parameters for one database winodws service. Background:I have a database called PROD with version 19.3, running on Windows. Its service looks like: This Windows service was configured with the parameter file:D:\app\db193\WINDOWS.X64_193000_db_home\database\initPROD.oraFor some reason, I want to change the parameter file to be:M:\app\oracle\database\initPROD.ora{Actually, I'm preparing … Continue reading How to Modify an Oracle Database Windows Service?

Oracle Virtual Machines for Sale !

Are you looking for a virtual machine to do some hands-on labs or practice something (i.e. for Educational purposes}? Do you have the time to build these virtual machines yourself? Below are some really nice Virtual Machines, that I invested allot of time to build on Oracle Virtual Box, and that I used them personally … Continue reading Oracle Virtual Machines for Sale !

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 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

How to Create Autonomous Datawarehouse Database (Always Free Services)?

https://www.youtube.com/watch?v=nOJowoCyw7Y ThanksAhmed

The beauty of Visualization with Oracle Database

https://youtu.be/3N2wgayry4g ThanksAhmed

Oracle Database Password file presentation

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