SUMMARY

• 6+ years of experience in Oracle DBA
• Over 2 years in other IT related fields.
• Implementation of various databases and database schemas intensively.
• Implemented Materialize Views for reporting purpose.
• Vast experience on Linux, AIX, HPUX, Solaris and Windows.
• Installed and maintained Oracle 9i and Oracle 10g, Oracle 11g database server on various platforms.
• Installed 12c Database on VMware.
• Installed SQL Server 2005, 2008 on Windows 2008.
• Performed migration of Oracle version 9i to 10g release 2 RAC based environment.
• Experience in working with RAC environment.
• Created and configured Data Guard (Standby Database)
• Experienced in Oracle 9i/10g features (RMAN, Data Guard, and Standby Database).
• Experience in taking HOT and COLD backup of the database and also the individual tablespaces.
• Experience in Backup & Recovery techniques using RMAN.
• Implemented different backup policies for different servers using RMAN.
• Restored and recovered the databases in case of disk crash.
• Load data using SQL loader.
• Taken different type of backups on SQL Server.
• Experience in installing patches for upgrades and for various problems.
• Performed the upgrade of Oracle version 9i to 10g to 11g R2.
• Worked on Export / Imports using Data Pump
• Experience working with 24x7 production support.
• Creating roles, profiles, privileges and assigning roles to users.
• Extensively worked on monitoring and optimizing the database by performance tuning
• Monitor usage of the databases and perform database tuning.
• Experience in SQL TRACE and TKPROF.
• Extensive experience in Oracle Partitioning.
• Involved in database monitoring activities using STATSPACK.
• Worked heavily with 10g, 11g and 12c Grid control.
• Documented most critical procedures and trained backup staff to run them.
• Troubleshooting of networking issues.
• Good understanding of Indexes and statistics.
• Good understanding of Dictionary tables and views.
• Analyzed Tables, Indexes periodically to optimize the SQL queries.
• Developing UNIX shell scripts and Perl scripts and SQL scripts to carry out routine checks on databases.
• Monitored indexes and analyzed their status for performance tuning and query optimization.
• Worked extensively with ASM builds and disk group management .
• Experience in resource management like data files, online redo log files, control files, and allocating logical storage structures like tablespaces, segments and extents
• Implemented proactive monitoring scripts for production databases.
• Extensive experience in writing SQL queries, Stored Procedure, Function, Views, and Triggers.
• Setup Data Guard from scratch.
• Troubleshoot performance issues using ASH, AWR and ADDM,
• Provided 24/7 on - call support to customers.

TECHNICAL SKILLS

Languages: SQL, PL/SQL

Script and Markup Languages: Unix bash shell programming, HTML, Windows Batch files

OS & Administration: Linux, Windows, Solaris, AIX, HP-UX

Database: Oracle 9i, 10g, 11g, 12c / SQL Server 2005, 2008

Concepts and Administration: Data Guard (Standby)

Real Application: Cluster (RAC), Automatic Storage Management (ASM)

Active Data Guard: Grid Control, 12 Cloud Control, MS SQL Server

PROFESSIONAL EXPERIENCE

Confidential, Austin, Texas

Contractor - Oracle DBA

Environment: Oracle 11g, 12c, RAC, ASM, Linux, Solaris, Data Guard

Responsibilities:

• Involved in 24x7 support for production RAC databases with on-call pager
• Supported 8 node cluster
• Supported production, development and testing databases of Multi Terabytes DB sizes.
• Installation of 9i, 10g and 11g clients/databases on Solaris and Linux.
• Complete Build of 4-node 10g RAC Cluster on RHEL 4 from scratch.
• Migrated 10g database to 11g R2.
• Skilled with statspack, AWR, ADDM, SAR to check health of database & hardware.
• Used Performance tuning tools such as tkprof, explain plans, oradebug and trace files to tune SQL Queries.
• Performed database cloning to setup test and development database.
• Migrated databases to different data datacenter.
• Experienced with SRVCTL, OCR and Voting Disk of 10g RAC
• Handled RAC Node hangs and node eviction issues.
• Maintaining schemas and partitioning tables.
• Experienced with all kinds (Status, Performance, and Trend Analysis) of DB Monitoring.
• Index management for better performance, maintenance of Oracle Database
• Developed RMAN scripts for database backup and recovery including hot and cold backup options for both RAC and standalone instances.
• Responsible for administration and supporting oracle 11g, 10g and 9i databases
• Created, upgraded, and cloned Oracle databases for Development and testing databases.
• Performing day-to-day database administration tasks like Tablespace usage, checking alert log, trace files, monitoring disk usage, Table/index analyze jobs, database backup logs etc.
• Worked in Tuning OS, Shared Pool, Buffer Cache, and Redo Log Buffer.

Confidential

Contractor - Oracle DBA

Environment: Oracle 9i, 10g, 11g RAC, ASM, Linux, Solaris, Data Guard, GoldenGate

Responsibilities:

• Installing ASM environment and migrating database from NON-ASM to ASM.
• Configure and manage tablespaces, tables, and users for custom applications.
• Developed views, materialized views, functions, procedures, triggers, packages using PL/SQL & SQL to transform data between source staging area to target staging area
• Creating and dropping of users, granting and revoking permissions to users/roles as and when required.
• Experienced with Space Management and Security.
• Experienced with GUI and CLI to manage database farm house.
• Rebuilding of Indexes for better performance and maintenance of Oracle Database.
• Tuning high - resource queries introducing hints and creating indexes/parturitions, changing the query if necessary
• Configured and Maintenance of SQL Server databases
• Implemented 10g, 11g Physical Data Guard.
• Implemented Oracle high availability solution using oracle RAC, Physical Standby and GoldenGate.
• Importing data from flat files into database using SQL loader and External Tables
• Written shell scripts to automate the tasks
• Physical and Logical database design.
• Database sizing, Capacity Planning.
• Worked on relational modeling using ERWIN.
• Worked very closely with development team
• Perform capacity planning required to create and maintain database environments.
• Supported 24/7 on-call pager support for mission critical financial databases.
• Involved in designing new structures/procedures/views/functions for development and data migration from production to reports.
• Created users, roles and granted privileges according to the business requirements.
• Data Modeling, Database Design and creation using Erwin.
• Database performance monitoring, Application performance monitoring, tuning database and application with efficient database parameters..
• Configuring TNSNAMES.ORA and LISTENER.ORA for SQL*NET connectivity.
• Experience with pre-production and production of Oracle 10gR2 with multi node RAC with ASM
• Automated the replication process using materialized views for reporting databases.
• Plan and acquire the new technologies for and implementation, suitable for the applications in regard to the specific future requirements of the company's business projections and growth.
• Extensive use of Oracle Data pump, Exports/Imports utility for moving data among the servers.
• Performed large batch jobs, and tuning of SQL queries and database systems.
• Created indexes to facilitate easy user interface implementation and tuning.
• Implemented advanced features of Oracle 10g such as Automatic Database Diagnostic
• Monitor (ADDM), Automatic Workload Repository (AWR) for monitoring database performance.
• Performed administrative maintenance, monitoring on Oracle database systems in a global
• 24x7 operational environments.

Confidential

Oracle DBA

Environment: Oracle 10g RAC, ASM, AIX, Linux, Solaris, Windows, RMAN, SQL*Plus, SQL, PL/SQL, UNIX Shell Scripting, Data Guard, SQL*LOADER, Oracle OEM, Import/Export Data Pump, STATSPACK

Responsibilities:

• Installing, upgrading and maintaining Oracle RDBMS on UNIX, Linux platforms.
• Maintaining databases from all the environments from all pre production to production which are on RAC and monitoring the Analytics environment using Oracle Streams.
• Experienced in ORACLE 11g installation, configuration, and upgrading.
• Experience with rolling upgrade to Oracle 11G RAC.
• System Development Life Cycle (SDLC) methodology for designing, analysis, development and implementation.
• Worked with lead DBAs for preparing cluster, configuring, installing Clusterware and Oracle
• 10g RAC on AIX and HACMP.
• Installation, Configuration, Upgrading, Migration and Maintenance.
• Configure, maintain and deploy the Data Guard and grid control.
• Installing and maintaining Oracle GRID CONTROL
• Configured Workload Management, JDBC, FAN, TAF, ASM, and RMAN for maximum performance.
• Worked extensively on Oracle Streams.
• Troubleshoot OCFS2 install issues and working with Enterprise Manager.
• Design and implement Auditing and other security features for the existing Production systems.
• Raised SR and TAR with Oracle Support.
• Used Oracle Enterprise Manager (OEM) for administering several databases
• Backup of database Logical and Physical (hot and cold) procedures and also using RMAN.
• Migration from Linux to Solaris and 32 bit to 64 bit.
• Restore and Recovery of database in case of database crash, disk/media failure.
• Applying patches and works closely with Oracle to make Application environment up to date.
• Backups & Recovery Maintenance, Databases Performance Tuning.
• Typically involved in database Designing, creation and maintenance.
• Good working knowledge of SQL, PL/SQL, and shell scripting.
• Created users and grant privileges according to the requirements.
• Working knowledge on UNIX administration on AIX server.
• Using OEM (Oracle Enterprise Manager) for routine administration, database monitoring, replication process and performance tuning.
• Provided System support for both development and 24*7 production environments.
• Clear documentation was prepared on all the processes like program specification, bugs fixing logs & change requests for future reference.
• Performed automated backups and scheduling using scripting.
• Responsible for migration of databases.