Installing Oracle Database 18.3 on Windows

This is a quick post about installing Oracle Database 18.3 on my laptop (Windows 10). First of all download the software media file. You can download the media from: https://www.oracle.com/technetwork/database/enterprise-edition/downloads/oracle18c-windows-180000-5066774.html The file name is called:WINDOWS.X64_180000_db_home.zip and it is about 4.5GB Create a folder under d:\app called db183 Unzip the media under this folder d:\app\db183 The … Continue reading Installing Oracle Database 18.3 on Windows

Oracle Database Guard 12c Implementation with RAC (Step-by-Step)

Introduction: This is a real data guard implementation case for one of my clients. Data Guard is implemented between two clusters that reside on two different supercluster machines. The below procedure applies between any two clusters, it doesn't matter if it is a supercluster or Exadata or normal servers. I tried to put as much … Continue reading Oracle Database Guard 12c Implementation with RAC (Step-by-Step)

Oracle Data Guard 12c Switchover Issues

Environment Primary: 2-nodes 12c RAC ASM Super Cluster Oracle Solaris Dedicated Network Interface for Data Guard Dedicated Listener for Data Guard Standby: 2-nodes 12c RAC ASM Super Cluster Oracle Solaris Dedicated Network Interface for Data Guard Dedicated Listener for Data Guard What is the Issue: Sometimes, when I do a Switchover I receive an error … Continue reading Oracle Data Guard 12c Switchover Issues

Oracle Database Services in (Oracle RAC + Oracle Data Guard) Environment

Introduction: We may classify the database services into two types of services : 1- Database Services 2- Cluster Managed Database Services Please note that: - The procedure dbms_service.start_service - used with the first type - is deprecated in databases managed by Oracle Clusterware and Oracle Restart with Release 11.2. While the procedure remains available in … Continue reading Oracle Database Services in (Oracle RAC + Oracle Data Guard) Environment

Oracle Data Guard 12c Testing Scenarios

Objective The objective of this post is to show the detailed steps for: Testing Read-Only access to the Standby DatabaseTesting Active Data Guard Access to the Standby DatabaseTesting Switching over/back to/from Standby DatabaseTesting Failover to the Standby Current Data Guard Environment Testing Read-Only access to the Standby Database On the current primary database create a … Continue reading Oracle Data Guard 12c Testing Scenarios

Oracle Database 12c Password File

Introduction: I (and we) used to see the oracle database password file under $ORACLE_HOME/dbs for both single instance and RAC databases. Example for RAC database: On node1 /u01/app/oracle/product/11.2.0/dbhome_1/dbs/orapwPROD1 On node2 /u01/app/oracle/product/11.2.0/dbhome_1/dbs/orapwPROD2 If one password file was changed in one node, then you have to copy it to all other nodes in the cluster. What is … Continue reading Oracle Database 12c Password File