As we have many situations to deal with in the topics, my recommendation is creating 6 VMs using Virtualbox: Oracle Single Instance Oracle Enterprise Manager Oracle RAC Node 1 Oracle RAC Node 2 Oracle DG RAC Node 1 Oracle DG RAC Node 2 I won't show here how to create an VirtualBox and install Oracle Linux …
Oct 22
OCM 11g Preparation - Download the Exam Environment
The exam environment keep changing over the time and I believe that Oracle will soon update the Linux and Database release to the latest. As Oct/2014, the exam environment in official OCM website is the following: Exam Environment Oracle Linux Release 5.4 (32-bit) Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 (32-bit) Oracle Enterprise Manager 11g Grid …
Oct 22
OCM 11g Preparation - Recommended Hardware
As we will need to create RAC, Dataguard, Single Instance and Oracle EM machines scenarios, let's consider a scenario where we will need to simulate 4 VMs running at the same time. To this work in your system, you will need at least: 16 GB RAM Quad core fast CPU (Something similar or better than a Core i5) …
Oct 07
Retrieve oracle sysdba audit from table
Oracle will always generate audit files for some SYSDBA operations in audit_file_dest, no matter what you do. As Doc ID 1528170.1, "Some auditing of SYSDBA is mandatory and cannot be disabled (STARTUP, SHUTDOWN, and CONNECT)." If audit_sys_operations is currently set to TRUE, many files will be created in audit_file_dest by SYSDBA user activity. In this …
Oct 01
Restricting oracle Username using Trigger
One of the important tasks that the DBA has is to keep organized and controlled the schemas that exist in the database. Some companies have a standard nomenclature for its employees and service providers usernames and to avoid the creation of wrong logins, you can make a process to force an username pattern. To accomplish …