SUMMARY

• 8+ Years of specialized experience in IT Industry as an Oracle Database Administrator on different flavors of UNIX (Red Hat Linux, HP - UX, Sun Solaris, IBM AIX) and Windows (Windows NT/ 2000/2003/2008 ) environments.
• Experience in installing, configuring, administering and managing oracle databases & implementing solutions like High availability (HA), Disaster & Recovery, Cloning, and Database security.
• Very good experience as Oracle DBA in production, development and test environments
• Performed Migration and Up gradation of databases to 11g and 10g.
• Implemented 2- node RAC in different UNIX platforms.
• Installation of Oracle 10g RAC software with ASM & OCFS2 File systems has been implemented.
• Installed & Configured Oracle 10g grid and maintained in large environments.
• Implemented RAC and Data guard on Linux & multiplexing of control files and redo-logs for disaster recovery scenario.
• Created database & database objects like table, index, table space, rollback/undo segments and views & analyzed relevant objects to collect statistics to tune the system performance.
• Construction of Catalog Databases and developed scripts to perform Backups of Large Databases to fit the backup window using RMAN.
• Performance tuning of the database - SQL Tuning, Used Tuning utilities like STATSPACK, TKPROF, EXPLAIN PLAN, AWR, ADDM and Tuning of SGA, Distribution of disk I/O, Sizing of tables and indexes.
• Detecting and diagnosing production system performance problem by analyzing STATSPACK reports, Oracle trace and log files, AWR, ADDM, analyzing SQL statements, measuring system and database activity, Querying Oracle dynamic performance views.
• Implemented RMAN backup (Full, incremental and cumulative) and recovery, Incomplete recovery and disaster recovery using Standby database or Data Guard.
• Extensively worked in setting up Oracle physical, logical standby database.
• Setup, Configured and Maintained Oracle Data Guard to control Primary and Standby Databases and also to ensure disaster recovery using various data protection modes.
• Data loading using SQL*LOADER, Logical backups using full export and DATAPUMP.
• Database replication using snapshots, materialized views, import/export and advanced replication methods.
• Experience of Oracle Golden Gate installation, configuration and troubleshooting Golden Gate issues.
• Expert in Administering 7X24 OLTP, Data Warehouse, OLAP, and Hot Standby (Data Guard) databases. Ability to analyze, plan and execute to perfection.
• Have knowledge on UNIX administration on OS installations.
• Experienced in database reorganization regularly for removing row migrations and fragmentation using export and import utilities. Taking care of table space related issues like increasing the storage parameter values, resizing the data files, adding new data files etc.
• Interacting with the Oracle support on Service Requests and implementing the solutions provided for successful completion of the tasks.
• Possess top quality skills in project management, customer support & system maintenance and a Team player with good analytical and communication skills, ability to quickly adapt to new environment.

TECHNICAL SKILLS

Databases: Oracle 11g/10g/9i/8i, Oracle 11g/10g Real Application Clusters (RAC), MS Access.

Operating Systems: UNIX, Sun Solaris, Windows XP/2000/2003,Linux Red Hat, Novell Netware 3.0,Suse Linux

Languages: SQL, PL/SQL, XML,UNIX Shell Scripting

Oracle Utility: RMAN, OEM, Export/Import, Data Pump, SQL*Loader, DB Verify, Log Miner, ASM CMD, Data Guard, Golden Gate, Streams

Performance Tuning: Grid control, Toad, Quest SQL Optimizer, STATSPACK, TKPROF, AWR, ADDM, ASH report.

Tools: TOAD, ERWIN, Sql Loader Utility, OEM Grid Control, RMAN,NETCA,DBCA,SRVCTL, P-SPICE,ORCAD

PROFESSIONAL EXPERIENCE

Confidential, Washington DC

Oracle DBA

Responsibilities:

• Install Oracle DB 10g,11g RDBMS, RAC on ASM, Applying Oracle Critical patch updates, Implementing and Manage Data Guard, Replication, Backup and Recovery support and performance tuning etc.
• Created and maintained various databases for Production, Development and Testing using Oracle 9i, 10g, 11g.
• Installed Grid Infrastructure Software on new Linux Servers for 2 node and 3 node RAC and Failover environments.
• Oracle Grid Control 11g Installation and Configuration.
• Experience with 11g ASM Features and environment.
• Applied necessary Patches during installation.
• Handy in utilizing data pump tool for exporting and importing the data.
• Upgraded Analytical Databases from 10g to 11g.
• Experience with Data Guard Feature, Implemented building and Rebuilding of Standby Databases.
• Experienced in switching primary database to standby and standby to primary during regular maintenances of catalog databases and DR databases.
• Done Installation and configuration of Golden Gate on 11g database for the replication.
• Resolving the conflicts between the target and source database.
• Implemented Bi-Directional replication in golden gate.
• Performance tuning of queries consuming Excessive Resources or slow running queries by Providing Required Hints to the Query.
• Supported development effort by providing SQL statement tuning and optimizing ETL procedures and removing load and query performance bottlenecks by using Explain Plan.
• Understood the concepts of AMS (Archival Management System) and implemented successfully in production environment to archive historical data.
• Well Experienced in taking Cold Backup for a very Huge 64-Tb Database.
• Experienced in managing Daily Online backups (Level-0 and Level-1) and Archive Backups using RMAN.
• Migration of databases from 10g to 11g using export/import and data pump export/import utilities
• Weekly Data Refresh from Production to Development and Test environments using Data Pump export/import.
• Having good exposure in user management, Table space Management, Session Management, undo Management issues.
• Experienced in managing space issues in the Database Level for table space and Regular file system cleanup at UNIX level.
• Experienced with troubleshooting the failed backups by working closely with TSM and Net backup Support.
• Experienced in Installing OEM agent and hooking up to the grid.
• Configuring Heterogeneous Gateways in the OEM grid for monitoring the Listeners present in the oracle environment.
• Experience with peregrine ticketing tools for resolving the tickets.

Environment: Linux, Solaris 10, Oracle 9i,10g,11g,OEM,SQL*Plus, Xming, Putty, Shell ScriptingASM, Data Guard, Peregrine,, Enterprise change Management Systems(ECMS)TSM, VERITAS, Golden Gate

Confidential, IL

Oracle DBA

Responsibilities:

• Provided 24x7 support and On-Call rotation when needed for very large databases.
• Installed Oracle 10g on Linux and RAC 10g and worked on ASM feature of Oracle.
• Estimate the size of the database and its objects (in large database of 1 to 2 Terabyte).
• Upgraded database from Oracle 9i to 10g and 10g to 11g, having a good exposure on Oracle11g.
• Installation and configuration of Oracle 10g RAC 2 node on Linux.
• Applied CPU security patches in both RAC and standalone systems in ASM environment.
• Experience with Oracle 10g grid control.
• For the improvement of database performance implemented database tuning and its requirements and reviewed it.
• Involved in Database and Transaction log Backups and Restoration, backup strategies, scheduling the backups. Backing up system & user databases and restoring them as required.
• Create Database users and roles and implement appropriate user security.
• Experienced with Oracle 10g ASM feature.
• Implemented active-active configurations usually require data conflicts to be managed by the application, suitable for custom applications.
• Implemented Oracle Replication through materialized view.
• Supported development effort by providing SQL statement tuning and optimizing ETL procedures and removing load and query performance bottlenecks by using tools Explain Plan, SQL Trace, TKPROF, TOAD and Oracle Enterprise Manager.
• Performance tuning of Queries by maintaining Aggregates, Compression, partition, indexing and use of Hints, Stored outlines, Statistics for the same.
• Experience with database partitioning and responsible for daily loads.
• Experience with DDL and DML operations and having sound knowledge.
• Good experience with Oracle performance issues in both application tuning &memory tuning.
• Trouble shooting of various database performances by proper diagnosis at all levels like SQL, PL/SQL, database design, database tables, indexes, Instance, memory, operating system and java calls.
• Writing UNIX shell scripts to manage Oracle environment and application processes.
• Responsible for maintaining Oracle 10g data guard and 9i standby databases in Solaris, Linux and Aix platforms.

Environment: Linux 4,Oracle 9i/10g/11g RAC, Toad, 10g Grid, Windows NT/2000,OEM,Oracle

Confidential, Iowa

Oracle DBA

Responsibilities:

• Involved in gathering user Requirements, application design, and analysis of hardware requirements to meet business needs.
• Prepared a step by step installation document for the 10g RAC on Linux operating system.
• Configuration of system to achieve High Availability, Load balancing and automatic fail over functionality.
• Install, upgrade and maintain Oracle 10g on Sun Solaris and Windows 2003
• Application Tuning by tuning queries, identifying problematic code, creation of indexes, re-writing queries using an optimized path, Creation of Materialized Views and gathering necessary statistics on objects etc.
• Implementing Database Security, Management of role-based security.
• Database Restore using RMAN, Cold Backup and Export.
• Applying Patches 9.2.0.6 and applying Oracle DST Patches on Oracle database.
• Performing day-to-day database administration tasks like Table space usage, checking alert log, trace files, monitoring disk usage, Table/index analyze jobs, database backup logs etc.
• Cloning of databases from production to test environments.
• Periodic data refresh from production to testing environments, Re-organizing database structures etc.
• Actively involved in validation of the data files using DB Verify Utility. In order to solve Block corruption Errors.

Environment: Oracle 10g, 9i, 8i,Windows 2000/2003, 10g R1,Toad 8.5.3,RMAN,OEM, PL/SQLSQL*Loader, Shell Scripting

Confidential, MN

Oracle DBA

Responsibilities:

• Provided 24*7 Support for Production environment for Extraction, Loading and transformation of Data in Data Mart. Remote monitoring and tuning of Database Processes in the Client environment
• Design Evaluation and Analysis of physical and logical model.
• Involved in Installation and customization of Databases (10g&9i) in Windows, Linux and Solaris environments
• Involved in Schema management, Table space Management, User Creation.
• Monitoring the Extraction and loading processes of Data.
• Upgraded and applied patches as and when required. Database Refreshes from Prod to Dev. Troubleshooting Day-to-Day Users Issues in various modules.
• Responsible for Oracle implemented backups like LOGICAL & PHYSICAL i.e. Export & import and also having experience with EXPDP & IMPDP
• Evaluated the hardware requirements before upgrading/migrating the database.
• Good experience with recovery managed backups i.e. RMAN
• Migrated the database from non-Oracle to Oracle i.e. SQL Server to Oracle.
• Maintained and audited Application and data servers.
• Documented the complete project including all pre installation, post installation and database configuration steps.
• Involved in writing UNIX shell scripting for automating the jobs.
• Manage users, privileges, profiles, schemas.
• Experience in using automatic monitoring and management processes like batch processing using Crontab for processes like import, export databases.
• Used analyze table, analyze indexes to tune queries and increase performance.
• Experience with SGA tuning and Histograms understanding and sound knowledge in SQL execution plan.
• Tuning Oracle 9i database servers using tools dynamic, dictionary views, Stats pack, ADDM, AWR Diagnostic and tuning packages.

Environment: Oracle9i/10g, Windows NT/03, Linux, AIX5.1, Hp-UX, Sun Solaris, SQL, PL/SQL, Shell

Confidential

Oracle Developer/DBA

Responsibilities:

• Involved in fine tuning stored Procedures by making use of PL/SQL Collections and its BULK FETCH and BULK INSERT features.
• Involved in optimizing SQL statements using Indexes and Hints.
• Involved in writing complex SQL statements.
• Responsible for administering and supporting production and development Oracle 7/8i databases. Responsible for installing, upgrading and configuring the Oracle server, creating databases, storage structures and objects, database backup and recovery, monitoring and optimizing database performance.
• Taking care of regular activities like Space management issues, capacity planning, back up status and any user management issues.
• Implemented Hot, Cold and physical backups.
• Enrolled users and applications, setup them with the integration of database to access their applications easily.
• Produced DB Links in Oracle for communicating with external databases.
• Creation of database users, monitoring the roles and granting/revoking the privileges on the database objects like tables, indexes, etc.,
• Experience with monitoring alert log files and determining data errors
• Implemented Backup & Recovery strategies for OLTP systems
• Worked as Support Database Administrator. Responsibilities include creation & maintenance of table spaces, data files, rollback segments, etc.,

Environment: MS Server -2000/2003,VmWare,Novell Netware, Oracle7, 8i/9i, RHEL 4,, ToadDatabase tools/utilities, SQL,PL/SQL