This document provides a summary of Abhishek Tyagi's experience as an Oracle DBA. Over 7 years of experience administering Oracle databases including versions 9i, 10g, and 11g on Linux, Solaris, and Windows platforms. Responsibilities include database administration, backup and recovery strategies, performance tuning, capacity planning, and training new hires. Core competencies listed include database creation, backups, restores, cloning, version upgrades, and more. The document outlines work history with two companies as an Oracle DBA on various projects.

1. Abhishek Tyagi
Mobile: 09654400829/9810963931 Email: abhishektyagi.dba@gmail.com
To seek an IT profession in the area of Oracle whereby I can use my technical and inter-personal
skills for the benefit of the organization and for my personal and professional growth.
Experience Summary
• Around 7 Years of experience as an Oracle DBA, worked extensively with various versions of Oracle
RDBMS (9.x/10gand 11gR2) on various Operating systems like Linux, SUN Solaris, and Windows.
Expertise includes database administering in all the said platforms, designing backup and recovery
strategies, capacity planning and project planning, performance tuning of databases and working with
application teams. My responsibilities involve also me to train new candidates and make them able to
handle the company’s worth data. Having good interpersonal and communication skills and a great team
player with very good leadership and knowledge sharing attitude. Having good working knowledge in
Oracle 9i and 10g RAC, 11gR2 RAC databases.
Core Competencies and Responsibilities
• Administering Oracle 9i,10g and 11gR2 databases.
• Work as part of a team and provide 24x7 supports when required
• Database creation using SQLPLUS and DBCA.
• Planning database backup strategies and their implementation.
• Working on hot/cold, RMAN backups.
• Restore and recovery tasks of database backups.
• Database cloning using logical backup as well as RMAN.
• Creating databases and all the necessary database objects in Oracle database.
• Database version up gradations from 9i to 10g..
• Generating and analyzing stats pack reports.
• Solving the space related problems.
• Good knowledge of Oracle Server Architecture.
• Conceptual knowledge Data Guard.
• Managing Data Files and Table spaces issues
• Cloning of Databases, Hot Backup, Cold Backup of Databases.
• Database connectivity, security and user privileges
• Migration/Up gradation of databases from 9.2.0.1 to 9.2.06 and 9.2.0.8.and 10g or 11g
• Troubleshooting ORA errors encountered in the alert logs.
• Train new candidates and make them able to handle the DBA activities efficiently.
• Installed and Configured Oracle Databases on Linux, Sun-Solaris and Windows.
• Ability to quickly grasp new concepts and apply software methodologies as per business needs.
• Excellent interpersonal and analytical skills with strong ability to communicate effectively.
• Installed and Configured Oracle RAC and ASM on linux and Solaris.
• Installed and Configured oracle 11g r2 on Solaris system and Cluster level Patch apply
• Solaris 10 system over all configurations
• Oracle Application 11i, R12 installation and maintenance of Oracle Products
On Solaris and LINUX platforms.
• SQL SERVER 2008 installation and maintenance.sql server 2008 replication configuration
• Oracle golden get 11g installation and configuration on Linux and Solaris 10 sparc
• Oracle Web logic 11gr1 installation configuration and web logic cluster configurations
• Storage virtualization concept for configuring RAC on Linux and Solaris 10
• Oracle Tuxedo application 8.1 and 11g installation configuration cluster on Linux and Solaris 10 sparc
Machine
• Oracle pillar axiom 600 storage configuration
• Oracle database10g, 11gR2 convert windows to Linux, Linux to Solaris using rman command
• Oracle database migration and up gradation 10gr2 cluster to oracle 11gR2 cluster to Solaris M8000

2. Server using rman command
• Oracle database 10gr2, 11gr2 convert cluster to non-cluster and non –cluster to cluster
Solaris, Linux, windows platform
• Oracle warehouse builder implementation and up gradation 10g to 11g R2 on solaris10, linux or
windows platform
• Oracle Enterprise management 12c cloud configuration and installation on Solaris 11, Linux and windows
platform
• Oracle Weblogic, form and report 11gR2 cluster ware configuration and installation on Solaris 11.1,
Linux platform
• Oracle cluster database 10gr2, 11gr2 setup configuration and migration IBM AIX 5.3,6.3,7.2 version
Platform
• Publishing Different Applications and Printers on the Citrix Users Profile
• Performing all aspects of account management. User ID creation, Giving Rights to users and share folder, etc
• Publishing application. Deploying ICA client, printer driver mapping,
• shadowing users, checking sessions, managing server load and CPU utilization.
• Logging into the Server through Remote Desktop and resolving the Issue.
• Publishing Different Applications and Printers on the Citrix Users Profile.
• To Publishing Applications as per client’s requirement
• Review the Event Logs for Errors and troubleshoot accordingly.
• Test and deploy OS & Citrix hot fixes, firmware updates
• Scheduled activities e.g. Backup and Weekly server reboots
Certification
• Oracle Certified Professional (OCP) DBA Track in Oracle 9i
• Oracle Certified Associate (OCA)
Career Overview
Company name: NIIT technologies
Project june-2015 – Till Date
Project Title: CONCOR
Role: Oracle DBA
Environment: Oracle 10g, 11gr2 on Solaris 10
Roles and Responsibilities
• Managing Production database having size around 600 GB.
• Created users & privileges with appropriate roles and levels of security.
• Performing Logical backups and recovering specific object or schema
• Monitoring and performing daily incremental backups, weekly backups using RMAN.
• Troubleshooting performance issues reported by the Application Team.

3. • Backup of the Production & Development Databases, based on business requirements.
• Schema, Table, Database refreshes on demand for dev teams.
• Interaction with client/users on various issues.
• Extensive experience in supporting Production environments.
• Working under the environment of 24X7 DBA support.
• Resolving complex backup and recovery issues.
• Creating and monitoring the different table spaces like user, Undo, temporary Table spaces.
• Transported table space from production database and plugged-in it in development database for the usage of
Developers
• Taking Differential backups of the database using Recovery Manager
• Monitoring Alert log & System log files.
• Planning and performing ONLINE (HOT BACKUP) as well as OFFLINE (COLD BACKUP) backup and
LOGICAL BACKUP.
• Troubleshooting Oracle connectivity issues.
• Taking care of all other daily routine DBA tasks like creating users, roles, table spaces from monitoring tools etc
• Oracle 10g RAC and ASM installation and configuration
• Installation of oracle software on Client servers and Databases servers.
• Maintenance of production database which includes tablespace space management, user creation, privileges, roles etc.
• Daily verifying that all instances are up & examine database alert/diagnostic logs and trace files for
errors, archive old log entries to keep manageable log size.
• Resolving database errors encountered by users, database connection issues, schedule maintenance to
resolve any/all issues found through monitoring.
• Hot backups using a combination of incremental, differential and full RMAN backups according to the
retention policy.
• Maintaining archive data on appropriate storage devices.
• Verifying that we have enough resources for acceptable performance by identifying free space in table
spaces, verifying Rollback/Undo segments, and identifying bad growth projections.
• Check for tablespaces with less that 20% free.
• Check for archive free space.
• Monitoring the performance of database
• Check whether database is running, check network connectivity to database.
• Export/Import of oracle databases.
• Performing Export & Import operations
• Monitoring & Managing the Table spaces and data files growth
• Monitoring locks and various sessions using OEM
• Analyzing Tables & Schemas, collecting system statistics, reorganizing tables and rebuilding indexes
• Backup and Recovery procedure
• Backing up and restoring the database

4. • Regular checking of Alert log files errors and make necessary actions to rectify them
• Responsible for taking full cold database backup
• Work as part of a team and provide 24x7 supports when required
• Handling issues on development and production databases
• Providing support for the smooth functioning of the Database to Developer
• Experience In RMAN backup and recovery
• Performed multiplexing of Control file and Redo log files
• Creating databases and all the necessary database objects in Oracle database.
• Experience on resolving technical issues using “SQL”
• Experience in patching database
• Experience in Up gradation of Oracle database from 9i to 10g and 10gR2 to 11gR2
• Database Link Creation
• Implementing Recovery Strategies and recovering the database in case of Crash to minimize downtime
of the database.
• Performing full database, incremental and archive log backups on daily basis.
Company name: Accel frontline Ltd
Project Nov-2011 – May 2015
Project Title: CONCOR
Role: Oracle DBA
Environment: Oracle 10g, 11gr2 on Solaris 10
Roles and Responsibilities
• Managing Production database having size around 600 GB.
• Created users & privileges with appropriate roles and levels of security.
• Performing Logical backups and recovering specific object or schema
• Monitoring and performing daily incremental backups, weekly backups using RMAN.
• Troubleshooting performance issues reported by the Application Team.
• Backup of the Production & Development Databases, based on business requirements.
• Schema, Table, Database refreshes on demand for dev teams.
• Interaction with client/users on various issues.
• Extensive experience in supporting Production environments.
• Working under the environment of 24X7 DBA support.
• Resolving complex backup and recovery issues.
• Creating and monitoring the different tablespaces like user, Undo, temporary Tablespaces.
• Transported tablespace from production database and plugged-in it in development database for the usage of
Developers
• Taking Differential backups of the database using Recovery Manager

5. • Monitoring Alert log & System log files.
• Planning and performing ONLINE (HOT BACKUP) as well as OFFLINE (COLD BACKUP) backup and
LOGICAL BACKUP.
• Troubleshooting Oracle connectivity issues.
• Taking care of all other daily routine DBA tasks like creating users, roles, tablespaces from monitoring tools etc
• Oracle 10g RAC and ASM installation and configuration
• Installation of oracle software on Client servers and Databases servers.
• Maintenance of production database which includes tablespace space management, user creation, privileges, roles etc.
• Daily verifying that all instances are up & examine database alert/diagnostic logs and trace files for
errors, archive old log entries to keep manageable log size.
• Resolving database errors encountered by users, database connection issues, schedule maintenance to
resolve any/all issues found through monitoring.
• Hot backups using a combination of incremental, differential and full RMAN backups according to the
retention policy.
• Maintaining archive data on appropriate storage devices.
• Verifying that we have enough resources for acceptable performance by identifying free space in table
spaces, verifying Rollback/Undo segments, and identifying bad growth projections.
• Check for tablespaces with less that 20% free.
• Check for archive free space.
• Monitoring the performance of database
• Check whether database is running, check network connectivity to database.
• Export/Import of oracle databases.
• Performing Export & Import operations
• Monitoring & Managing the Table spaces and data files growth
• Monitoring locks and various sessions using OEM
• Analyzing Tables & Schemas, collecting system statistics, reorganizing tables and rebuilding indexes
• Backup and Recovery procedure
• Backing up and restoring the database
• Regular checking of Alert log files errors and make necessary actions to rectify them
• Responsible for taking full cold database backup
• Work as part of a team and provide 24x7 supports when required
• Handling issues on development and production databases
• Providing support for the smooth functioning of the Database to Developer
• Experience In RMAN backup and recovery
• Performed multiplexing of Control file and Redo log files
• Creating databases and all the necessary database objects in Oracle database.
• Experience on resolving technical issues using “SQL”
• Experience in patching database

6. • Experience in Upgradation of Oracle database from 9i to 10g.
• Database Link Creation
• Implementing Recovery Strategies and recovering the database in case of Crash to minimize downtime
of the database.
• Performing full database, incremental and archive log backups on daily basis.
Company name: Amar Ujala Ltd. Noida ---------------------------------------
Project Sep-07 – Nov-11
Project Title: Billing and Accounting System
Role: Oracle DBA and oracle application 11i dba
Environment: Oracle 9i on Linux
Roles and Responsibilities:
• Managing Production database having size around 600 GB.
• Created users & privileges with appropriate roles and levels of security.
• Performing Logical backups and recovering specific object or schema
• Monitoring and performing daily incremental backups, weekly backups using RMAN.
• Troubleshooting performance issues reported by the Application Team.
• Backup of the Production & Development Databases, based on business requirements.
• Schema, Table, Database refreshes on demand for dev teams.
• Interaction with client/users on various issues.
• Extensive experience in supporting Production environments.
• Working under the environment of 24X7 DBA support.
• Resolving complex backup and recovery issues.
• Creating and monitoring the different tablespaces like user, Undo, temporary Tablespaces.
• Transported tablespace from production database and plugged-in it in development database for the
usage of developers
• Taking Differential backups of the database using Recovery Manager
• Monitoring Alert log & System log files.
• Planning and performing ONLINE (HOT BACKUP) as well as OFFLINE (COLD BACKUP) backup and
LOGICAL BACKUP.
• Adding the roles, profiles to the user upon request.
• Troubleshooting Oracle connectivity issues.
• Taking care of all other daily routine DBA tasks like creating users, roles, tablespaces from monitoring
tools etc
Oracle RAC installation and configuration
Project Sep-07 – Nov-11
Project Title: Oracle application11i (11.5.9) E-Business Suit
Role: oracle application 11i dba
Environment: Oracle 9i on Linux
• Oracle Application 11i installation.
• Cloning of Oracle Applications R11i.
• Assigning responsibilities to users.
• Registering & configuring remote Application Printers.
• Extensively worked on Oracle Applications AD Utilities.
• DataBase Administration tasks.
• Monitor alert logs, space and object growth related problems in the Databases.
• Oracle Applications System Administration such as managing concurrent programs
And requests, application security, user registration, assignment of
Responsibilities.
• Planning and managing database backups.
• Analysis of trace and log files to determine and resolve potential problem
Areas.
• Monitored and diagnosed database performance through monitoring of alert
Files, trace files.
• Post installation trouble shooting.
• Cloning from Production database to Development database and Testing.
• Perform a daily database refresh of the training and practices instances

7. From pre-production and Production server.
• Monitored concurrent processes / spawned processes so that performance of
the system is maintained.
• Having a good knowledge on routine monitoring, database shutdown, backup,
Startup etc.
• Knowledge on Cloning of Release 11i using the Rapid clone.
• Cloning of Oracle Applications with autoconfig.
• Creation and sizing table spaces and setting table space attributes
• Patch analysis for database and applications patches including, family
Packs, and one-of patches.
• Performed patch analysis for patches involving lot of pre-requisites.
Project Sep-07 – Nov-11
Project Title: Adpro booking and billing application
Role: Sql Server 2008 admin
Environment: Sql Server 2008 Standard edition x64 (Windows Server 2008 Standard Edition)
• Analysis of the existing setups and specifications of the Project.
• DBA activities like analysis of Space Availability, Backups (transaction log, complete) and Scheduled Jobs.
• Monitoring Transactional Replication and trouble shooting in necessary conditions.
• Updating Service packs and Security patches for the Servers.
• Testing the Data Backup by restoring as test database in a test server.
• Setting up of full-proof Disaster Recovery Mechanism
• Performance Tuning – Tune, analyze and optimize costly queries to reduce logical disk I/O for effective
Performance.
• Monitoring of server performance by profiler during peak periods of server utilization.
• Create and re-evaluate Indexes and made needed modifications for better performance.
• Creating and Reviewing Security features for all the servers.
Project: Adpro software Enhancement System
Role: Oracle DBA
Roles and Responsibilities:
• Managing Production database having size around 500 GB.
• Installation of oracle software on Client servers and Databases servers.
• Maintenance of production database which includes tablespace space management, user creation,
privileges, roles etc.
• Daily verifying that all instances are up & examine database alert/diagnostic logs and trace files for
errors, archive old log entries to keep manageable log size.
• Resolving database errors encountered by users, database connection issues, schedule maintenance to
resolve any/all issues found through monitoring.
• Hot backups using a combination of incremental, differential and full RMAN backups according to the
retention policy.
• Maintaining archive data on appropriate storage devices.
• Verifying that we have enough resources for acceptable performance by identifying free space in
tablespaces, verifying Rollback/Undo segments, identifying bad growth projections.
• Check for tablespaces with less that 20% free.
• Check for archive free space.
• Monitoring the performance of database
• Check whether database is running, check network connectivity to database.
• Export/Import of oracle databases.
Project: Database Maintenance and Support
Role: Oracle DBA
Roles and Responsibilities:
• Managing Oracle Storage Structure
• Creating the users and profiles and task related to Database Security
• Performing Export & Import operations
• Monitoring & Managing the Table spaces and data files growth
• Monitoring locks and various sessions using OEM
• Analyzing Tables & Schemas, collecting system statistics, reorganizing tables and rebuilding indexes
• Backup and Recovery procedure
• Backing up and restoring the database
• Regular checking of Alert log file errors and make necessary actions to rectify them
• Responsible for taking full cold database backup
• Work as part of a team and provide 24x7 support when required
• Handling issues on development and production databases
• Providing support for the smooth functioning of the Database to Developer
• experience In RMAN backup and recovery
• Performed multiplexing of Control file and Redo log files

8. • Creating databases and all the necessary database objects in Oracle database.
• Experience on resolving technical issues using “SQL”
• Experience in Patching (database and cpu patching)
• Experience in Up gradation of Oracle database from 9i to 10g.
• Database Link Creation
• Implementing Recovery Strategies and recovering the database in case of Crash to minimize downtime
of the database.
• Performing full database, incremental and archive log backups on daily basis.
Personal Details
ACADEMIC CREDENTIALS & AWARDS
 B.COM (P) (2000-2003) from(Delhi University, Delhi)
 1 year Diploma (software Engineering ) (2001-2004) from KIIT, Delhi
 10+2 FROM THE SARASWATI BAL MANDIR SCHOOL, DELHI.
 10TH FROM THE SARASWATI BAL MANDIR SCHOOL, DELHI.
PERSONAL DETAILS
DATE OF BIRTH : 26
TH
MARCH 1981
MARITAL STATUS : MARRIED
LANGUAGE KNOWN : ENGLISH AND HINDI
NATIONALITY : INDIAN
PASSPORT : VALID
Hobbies : Enjoying Teamwork, Listening Music.
DATE: (ABHISHEKTYAGI)