dbasamad – Page 8

Mar 05 2020

Creating a Pluggable Database

By dbasamad in OCM Preparation, Oracle Database 12c

In this topic, I will show how to Create and manage PDB: Create a PDB from SEED. Clone a PDB with No Data. Clone a PDB from existing local PDB. Clone a PDB from existing remote PDB. Clone a PDB from existing remote Non-CDB. Clone a PDB from non-CDB using DBMS_PDB Package. Plugging In an …

Mar 04 2020

Creating Container and Pluggable Database Using CREATE DATABASE SQL Command

By dbasamad in OCM Preparation, Oracle Database 12c

In Oracle OCM exam, You may need to create database using command line. Even in real life, You may no have the option to use the software for GUI. I will show how to create a CDB and PDB using SQL Command. Create required directories. Set Environment Variables. Create Password File. Create a pfile and …

Mar 03 2020

Install Oracle 12.1 Software and Create database in Silent Mode

By dbasamad in OCM Preparation, Oracle Database 12c

In this Topic, I will show how to install Oracle 12.1.0.2 Software only and Create database using DBCA by silent mode. Oracle Installation Prerequisites Install Oracle 12c Software in Silent Mode: Create Database Using DBCA with Silent Mode: Oracle Installation Prerequisites: Add following kernel parameters on /etc/sysctl.conf. Run following command to verify and output will …

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Mar 02 2020

Permission changed for all directories including files in Oracle Home (RAC)

By dbasamad in Database Maintenance

Sometime user (os admin or dba) make mistake to change or provide the permission in Oracle Binary. User might requested for changing the particular file or directory permission but admin might run with recursively. Example: To change owner for patch directory (/u01/patch) including all files on patch. But by mistake run below command

Mar 02 2020

OCM 12c Preparation: Prepare Exam Environments

By dbasamad in OCM Preparation

Oracle Certified Master is one of the prestigious exam in database world. Most of the Oracle DBA have a dream to be OCM certified. This certification will distinguish you from others in Market. Prerequisites to be OCM Certified: Details Oracle 12c OCM exam is based on Oracle Database 12c Release 1 and includes the use …

Mar 01 2020

Move or Rename Oracle Files

By dbasamad in Backup & Recovery, Database Maintenance, Oracle Database 11g, Oracle Database 12c

DBA needs to rename or move oracle file from one filesystem or ASM DISKGroup to another. Move Datafiles Using ALTER DATABASE MOVE DATAFILE command – 12c and onward Moving Datafile Using RMAN with offline option – 10g or 11g Prerequisites: Database should be configured archive log mode.

Mar 01 2020

OCM 12c Preparation

By dbasamad in OCM Preparation

Feb 23 2020

Setup Password less connection using SSH for User Equivalence on Linux

By dbasamad in Unix, VitualBox Manager

Setup SSH (Key-Based Authentication) Password less connectivity is required for RAC setup. Sometimes need to send files from one server to another using script with scheduler job. For this kind of tasks, password less connectivity is required. Password less connectivity can setup one direction (from server A -> B) or both directions (From Server A …

Feb 15 2020

Add a New Disk to an Existing Linux Server

By dbasamad in Unix

In this article describes how to add a file system on exiting Linux OS. As OS is running on VM, First will show how to add a disk on VM then Create a Filesystem on OS Level.

Feb 11 2020

Step by Step of Installation Oracle Enterprise Manager (OEM) 13c (13.2.0.0) on RAC

By dbasamad in OEM

Oracle Enterprise Manage (OEM) is a great tools to monitor and manage all kind of oracle software including Oracle Databases and Server. Create Database Install OEM Software Install Agent

Mohammad Samad

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