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
Oracle 12.2 Database Creation
This post is just a screen cast for the process of creating a new container database with two PDBs in Oracle version 12.2. Login to the database server, set the ORACLE_HOME , PATH and DISPLAY , then run the Database Configuration Assistant "dbca" as oracle user: Check the listener status and ensure that the newly … Continue reading Oracle 12.2 Database Creation
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)
Protected: Oracle Data Guard 12c Switchover Issues
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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
Protected: Oracle Data Guard 12c Testing Scenarios
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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
How to Enable Archivelog Mode for an Oracle database
This is a quick post about the steps required to enable the ARCHIVELOG mode for an oracle database (Single Instance or RAC) To check if the archive log mode is enabled or not, use the following command: SYS@XPS 01-SEP-18 SQL> archive log list Database log mode No Archive Mode … Continue reading How to Enable Archivelog Mode for an Oracle database
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