Mohammad Samad
Author's posts
Mar 01 2020
OCM 12c 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 …
Feb 23 2020
Setup Password less connection using SSH for User Equivalence on Linux
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
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
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
Feb 04 2020
Oracle Database Migrate Using Mixed Oracle Version
We will discuss how to use mixed version of Data Guard to upgrade upper version with minimal downtime. DBA should not take 1% risk for most critical database in a company during migration or upgradation and must have to plan to rollback option for worse case. Let say you are working in a big company …
Feb 01 2020
Create Duplicate Or Refresh the Database Using RMAN Backup on RAC
Create duplicate database or refresh the database from production backup for testing purpose is one of the regular activities for DBA. I will discuss and show how to create duplicate database using RMAN backup. Scenario: Production database running on two nodes RAC and need to refresh the database for testing purpose on testing environment. Production …
Jan 16 2020
Multiple Tables Record Count by a Single Query
Sometimes DBA need to verify or compare multiple tables record count. It is really time consuming to compare one by one table count. So, by using this query, you will able to get record count report for multiple tables in Oracle.
Jan 06 2020
Move Objects From One Tablespace to Another Tablespace in Oracle
Sometimes need to move objects from one Tablespace to another in Oracle Databases. We can do this multiple ways. Move a single object from Multiple Tablespace (one TBS for DATA, another for Index and LOB) to different set of Tablespace Move all objects of a schema from Multiple Tablespace (one TBS for DATA, another for …
Jan 05 2020
Tips to Avoid Mistake and Be a Safer DBA
There is around 33% disaster occurs on database world for user error/mistake. If you follow couple of rules, you will able to overcome lots of possible mistake.
Dec 22 2019
Installing Oracle Client In Silent Mode on Linux
In this article I will show how to install Oracle Client 11g, 12c, 18c and 19c in Silent Mode on Linux. Download Software. Prepare response File. Installation
About Me
- Bachelor of Science in Computer Science, Dhaka, Bangladesh
- Master of Science in Data Warehousing & Data Mining, London, UK
- Master of Science in Computer Science, MIU, IA, USA
- Oracle Cloud Infrastructure Architect Professional
- Oracle OCP 9i-12c
- Oracle OCE RAC and GRID 11g
- Oracle OCS Security 11g
- Oracle PL/SQL OCA 10g
- Red Hat Enterprise Linux 6 RHCE
