Mohammed Irfan Hussain, Oracle DBA ( Database Administrator)

Mohammed Irfan Hussain

Oracle DBA ( Database Administrator)

Ministry of environment water and agriculture, Saudi Arabia

Location
Saudi Arabia - Buraidah
Education
Bachelor's degree, CSE
Experience
10 years, 2 Months

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Work Experience

Total years of experience :10 years, 2 Months

Oracle DBA ( Database Administrator) at Ministry of environment water and agriculture, Saudi Arabia
  • Saudi Arabia - Buraidah
  • My current job since May 2016

Achievement
• InPlace and OutPlace upgrade to 19c from 12c
• Upgraded Red hat Linux to 7.6 from 6.7
• Upgraded and Migrated to 12c CDB on Linux DB from 10g DB Windows 2003 R2

Duties & Responsibilities:-
• Database upgrade from 10g-12c, 11g-12c, 12c-19c
• Administers Container database (CDB) and Pluggable Database (PDB)
• Stimulation of Production dB using Data pump Api and Data pump utility
• User Management (Roles and privileges at CDB and PDB level)
• Tablespace Management
• Memory Management (SGA+PGA)
• Performance Tuning
• Memory Tuning
• SQL Tuning
• Flashback Database
• Flashback Data Archive (FDA or FBA) automatically tracking transactional changes to data over very long periods.
• Data Recover - Point in time Database, Point in time Tablespace, Point in time Table
• Unified audit, FGA fine-grained Audit, Traditional audit
• Implemented and Managed Data Guard - physical standby database and snapshot database (DR).
• Applying interim Patch and Patchset
• Configured Data Guard Modes- Failover and Switchover
• Automation of Database on server reboot
• In-Depth knowledge of Oracle Architecture & design
• Secured sensitive data by Data redaction policies
• Data Replication using Golden gate
• Memory and Storage management of Servers
• Proficient in Database and third-party software installation, up-gradation, and patching for Oracle on LINUX and UNIX platforms.
• Implemented backup solutions using Oracle conventional and third-party backup tools.
• Implemented High Availability solutions, disaster recovery strategies
• Migration of Database from one platform to another using Golden Gate.
• 12c Multi-tenant database as a pluggable database or container database
• DBA process and policies, manuals documentation for team reference and compliance.
• Installation and maintenance of DB Server
• Linux Server Administration

Oracle DBA at iSoftgamez
  • India - Hyderabad
  • August 2013 to September 2015

Duties & Responsibilities:-
• Stimulation of Production dB to TEST and Development environment
• Automation of dB refresh on daily basis
• Backing up the database in case of disaster or data loss
• Testing the backups to make sure the database can be recovered
• Recovering lost data in the event of an incident
• Reviewing security logs to ensure that the database has not been accessed inappropriately
• Monitoring the database software’s vendor information feeds for security alerts, patches, and upgrades
• Scheduling and applying patches and upgrades when required
• Adjusting the security settings of the databases to respond to threats
• Authorizing new users and applications to access the database
• Monitoring processor and memory utilization of the database server
• Creating and managing schemas—that is, categorization of data
• Assisting software developers with database questions
• Managing extract, transform, and load (ETL) tools
• Monitoring disk utilization of the database server
• Adding more storage or migrating the storage, if necessary
• Planning for future capacity requirements for the database
• Troubleshooting errors and other database problems
• Installing, monitoring and troubleshooting disaster recovery DR site
• Replicating data from one platform to another
• Uni and bi direction Data replication
• Flashback the data at the desire time
• Auditing the operations of Users and DBAs
• Administering Multi instance (multi-node) RAC database.
• Adding, Removing nodes from RAC.
• Upgrades RAC to latest version.
• Load balancing of session in RAC
• Applying patches in rolling on RAC Environment.
• Installing and maintaining dB servers
• Working with business users and developers to define data models for new applications or modules
• Oracle RDBMS & GRID(ASM+CRS) Installation (single node and multi-node)
• Database migration from non-ASM to ASM.
• Expert in Installing RAC REAL APPLICATION CLUSTER 11g/12c
• Upgrading RAC environment 11g/12c
• Migration of Database from one platform to other using Golden Gate.
• Well versed in Creating ASM instance for RAC, Cluster Ready Services CRS, Cluster monitoring utilities mounting.
• Discovery of LUN in SAN environment
• Troubleshooting Network issues

Education

Bachelor's degree, CSE
  • at JNTU University
  • May 2010

Achievement: Developed Car racing game on iPhone using Objective c Language.

Specialties & Skills

Oracle RAC
Oracle SQL
Oracle Database Administration
Oracle Database
DATABASE ADMINISTRATION
Data Replication
PLSQL PROGRAMMER
Shell Scripting
Database Refresh
Datapump API
Data Gaurd
FLASHBACK
Database clonning
Server Administrator
Db upgrade

Languages

English
Expert
Hindi
Expert
Urdu
Expert
Arabic
Beginner