Oracle Database 20c is now Generally Available on the cloud two days ago, 14-Feb-2020. Oracle 20c is next major database release. It includes many new fetaures espcially in the following areas: BlockchainMachine LearningSecurityJSONIn-Memory For a quick introduction to this new release:https://blogs.oracle.com/database/ga-of-oracle-database-20c-preview-release Also, for complete list of the new features, please refer to the:https://docs.oracle.com/en/database/oracle/oracle-database/20/newft/new-features.html Oracle Database … Continue reading Oracle Database 20c is now Generally Available
Below may be the longest SQL statement that I have ever seen. I don't know if it is written by one developer or group of developers and what is the logic behind it? I really don't like this style of writing sql statements. It is very difficult to be functionally understood. Also, it is very … Continue reading The Longest SQL Statement I have ever seen !
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.
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
I upgraded one database from 18.104.22.168 to 22.214.171.124 on one Solaris Sparc server. After that I configured the Enterprise Manager Database Express, but when I tried to access it, I got the following error: For more information about Oracle Enterprise Manager Database Express, please refer to my post:https://ahmedfattah.com/2018/10/14/oracle-enterprise-manager-database-express-12c-overview/ Environment: Oracle Solaris 11Oracle Restart 126.96.36.199Oracle Database … Continue reading After Oracle Database Upgrade to 12.2, Database Express Did not work
I have one 12c (12.2) database called "TEST" that is running in archivelog mode, and for some reason I want to drop this database. grid@test01:~$ ps -ef|grep pmongrid 11233 1 0 21:32:47 ? 0:03 asm_pmon_+ASMoracle 11360 1 0 21:33:19 ? 0:07 ora_pmon_TEST Unfortunately, I can't run dbca in GUI mode, so, I want to drop … Continue reading How to drop an Oracle Database using dbca in silent mode?
In this post, I'm going to explain how to install Oracle sample schemas, if they are not already installed. If you created a database sing DBCA , you can select to install the sample schemas: Or you can install sample schemas manually after the database creation as explained in this post. Download the Scripts: Starting … Continue reading Installing Oracle Sample Schemas (19.3)
This is a follow up post on my previous post:https://ahmedfattah.com/2019/12/15/loading-data-into-oracle-database-from-text-csv-files/If you read this post, you find that we uploaded some data , part of it was Arabic data, and although it was loaded successfully, the Arabic data was corrupted (appeared as ???????). In this post, we see how we can configure sqlcl to load and … Continue reading Loading Arabic Data Into Oracle Database using SQLCL
I have an Oracle Restart virtual machine that has both Oracle grid Infrastructure 12cR2 (12.2) and Oracle Database 12c R2 (12.2) + one CDB database called "orcl". I need to fully remove all oracle components from this machine. About the Deinstallation Tool Starting with Oracle Database 12c, the deinstallation tool is integrated with the database … Continue reading Removing Oracle Database Software 12.2 (Grid + Database)