Oracle Database 12.2.0.1 Release Updates (RUs) and Release Update Revisions (RURs)

Following is a list of all RU (Release Updates) and RUR (Release Update Revisions) issued for the Oracle Database 12cR2 (12.2.0.1) since Jul-2017 till today 20-Jun-2021. Please zoom-in to see the above picture clearly, or see it partitioned below: Please note that: - Both RU & RUR are released quarterly (Jan, April , Jul & … Continue reading Oracle Database 12.2.0.1 Release Updates (RUs) and Release Update Revisions (RURs)

Oracle Single-Instance Database Creation in a Clustered Environment

https://www.youtube.com/watch?v=LTXFohjMwqY

ORA-38760 While starting an Oracle Database

This is a quick post about an issue that I faced while trying to start one database yesterday. When I was trying to open one 12cR1 database, I got the following error: SYS SQL>alter database open;alter database open*ERROR at line 1:ORA-38760: This database instance failed to turn on flashback database The database status was "mounted": … Continue reading ORA-38760 While starting an Oracle Database

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?

Loading Data into Oracle Database from text CSV files

In this post we are going to load data from text files (formatted as CSV “comma separated values”) into oracle database (12.1) using 3 different techniques: Oracle SQL LoaderOracle SQL DeveloperOracle sqlcl command line utility. We will just touch the above techniques; you still need to drill down for more options and more details. Environment: … Continue reading Loading Data into Oracle Database from text CSV files

The beauty of Visualization with Oracle Database

https://youtu.be/3N2wgayry4g ThanksAhmed

Oracle Exadata Log Files

When time came to troubleshooting , we started to search and review the log files. At stress time, one may waste time searching about the location of these log files. So, it may be a good practice to document the location of your environment log files, so as to reach them quickly when you need … Continue reading Oracle Exadata Log Files

Oracle Enterprise Manager Database Express 12c Overview

Oracle Database 12c introduced Oracle Enterprise Manager Database Express 12c. Oracle Enterprise Manager Express is a Web-based interface for managing an Oracle database. Using Oracle EM Database Express, you can perform basic administrative tasks such as user, performance, memory, and space management. Oracle Enterprise Manager Database Control is no longer available. EM Database Express is … Continue reading Oracle Enterprise Manager Database Express 12c Overview

Oracle Apex Deployment Models in a Multitenant Database

Following are screen shots from one of my latest presentations about this topic: References: https://docs.oracle.com/database/121/HTMIG/db_pluggable.htm https://oracle-base.com/articles/12c/multitenant-uninstall-apex-from-the-cdb-12cr1 ThanksAhmed