Oracle Database Administrator Resume
Middletown, NY
SUMMARY
- Over 8 years of experience as Oracle Database Administrator, providing 24/7 support of both development and production Oracle 12c/11g/10g/9i databases on Various Platforms including Exadata.
- Proficient in Database Administration activities such as Upgrades, Patches, TAR support, Cloning, Backup and Recovery, Performance Tuning, capacity planning, script development, and documentation
- Excellent experience in Installation, Setup and configuration of Oracle 9i, 10g, 11g in HP - UX, SUN SOLARIS,IBM AIX and UNIX/LINUX environment
- Poses strong Administrative skills in RHEL.
- Experience in 11g grid control and 12c cloud control
- Provide DBA support with proactive monitoring, identifying areas that need to be improved in the application and databases using Statspack, AWR, ADDM, and OEM Grid Monitoring.
- Good experience working with Cluster Server Management (Real Application Cluster) & have successfully completed projects on Oracle RAC - Install, Configure, implement, and support.
- Good experience in performance tuning of production and development databases.
- Strong experience in database backup & recovery procedures using conventional cold, hot & RMAN backups
- Highly proficient in SQL, PL/SQL, bash and korn scripting
- Experience in Installation and configuration of Oracle 10/11g on SUN-Solaris, HP-UX, IBM AIX, Linux and Windows
- Experience in Installation, configuration of Oracle 11g RAC & also used Oracle 11g features like - Memory Management, Reorganization / Rebuild Indexes, Gather statistics / Automatic Statistic Collection, SQL Baselines, SQL Profiles, invisible indexes.
- Excellent experience in using OEM, TOAD, Data Migrations using export/import
- Excellent experience in cloning of databases using RMAN duplicate database feature.
- Implemented DATA GUARD (Standby) for high availability/disaster recovery support
- Management of schemas, objects & Partitioning the tables & indexes.
- Proficient in performance tuning using Explain Plan, STATSPACK, SQL TRACE, TKPROF, ADDM
- Good Interpersonal communication skills and Documentation skills.
- Provided On-Call support.
- Worked on 12c Multitenant databases.
- Setup unidirectional replication using Oracle GoldenGate
- Good experience in User and security management using Grants, roles, privileges, Oracle Vault, Wallet, FGA (Fine Grain Auditing)
- Experience in setting up DR solutions using RMAN, scripts, Data Guard standby solution.
- Setup Oracle 11g GoldenGate for replication needs.
- Poses strong DBA knowledge on SQL Server 2005 and 2008.
- Poses strong knowledge on RAID levels, NAS and SAN
- Worked extensively with SAN admins for ASM disks and Diskgroups.
- Involved in disaster recovery planning; detailed out the processes and procedures of implementing disaster recovery; implemented database backups and disaster recovery strategies using RMAN.
- Developed and implemented Materialized views for better performance of daily reports.
- Expertise in using Oracle Enterprise Manager (OEM) and Grid control and its components.
TECHNICAL SKILLS
Programming: SQL, PL/SQL, T-SQL, UNIX Shell Scripting
Database: Oracle 10g, 11g and 12c, Microsoft SQL Server
Operating Systems: Linux, AIX, Solaris, Windows, Exadata
Tools: OEM, RMAN, SQL*Loader, TOAD, EXP, IMP, dpump, cloud control, grid control
Networking: LAN, WAN, TCP/IP, DNS
Technology: OLAP, OLTP, RDBMS, AD Server
Cluster: Real Application Cluster (RAC), Windows Cluster
PROFESSIONAL EXPERIENCE
Oracle Database Administrator
Confidential, Middletown, NY
Responsibilities:
- 24x7 Production Database administrations on Exadata.
- Installed, configured and managed 11g R2 RAC databases on Exadata.
- Established Disaster Recovery for 11g R2 Clustered database using Oracle Data Guard.
- Upgrade databases from 10g to 11g R2 to 12c multitenant.
- Excellent knowledge of 11g RAC srvctl, crsctl, ocrdump, ocrcheck and ocrconfig utilities
- Applied CPU / PSU patchesInstalled 12c database
- Worked on Multitenant databases
- Create and manage Enterprise Manager jobs, alerts and notifications
- Written Shell Scripts to automate jobs
- Configure alerts from cloud control.
- Created and managed ASM instance and ASM disk groups
- Installing ASM environment and migrating database from NON-ASM to ASM
- Configured Oracle networking for 11g RAC
- Worked on several Shell scripts to maintain the database activities
- Configured the Flash Recovery Area
- Helped developers in deployments.
- Provided on-call support
Oracle Database Administrator
Confidential, Chicago, IL
Responsibilities:
- Upgrade databases from 10g to 11g R2
- Installed 11g Oracle Software Release 2 on their UNIX and Windows platforms.
- Build 2 node RAC cluster on Linux.
- Worked on Oracle security.
- Created UAT databases from production backups by using Database Cloning technique and facilitated the testing for various new projects and enhancements.
- Used Oracle GoldenGate for Basic and Advanced Data Replication.
- Worked on Uni-Direction and Bi-Direction GoldenGate setup.
- Implemented DATA GUARD (Standby) for high availability/disaster recovery purpose
- Handled Administration, Backup & Recovery using Recovery Manager (RMAN) tool.
- Implemented Oracle 11g RAC within the Organization for various departments, Migrated existing single instance databases to RAC environment
- Extensively used Oracle 11gR2 new features Data Guard, Replication, automatic SGA tuning, enhanced RMAN with flash recovery area, Oracle data pump, Database Control, AWR, ADDM, SQL Tuning/Access Advisors, Flash Back Database and several others.
- Performance Tuning and monitoring statistics of production databases and doing capacity planning for database growth and load.
- Administered the database and its users through Oracle Enterprise Manager (OEM) Tool.
- Technically reviewed, developed, tested & documented all the batch scripts that update the database on their scheduled run in the UNIX CRON.
- Shouldered a project which dealt with documenting the data sources and the architecture of Oracle database.
- Developed UNIX Shell Scripts and modified the existing ones to meet the organizations specific requirements.
- Extensively worked on 11g Grid Control.
- Familiar with 12c Grid Control setup an implementation.
- Documented new procedures and added to sharepoint.
- Provided support to Development team in SQL tuning and database design.
- Worked in oncall rotation and provided off hours support to both production and non-production databases.
- Worked with UNIX, Firewall and storage team for DR migration.
- Installed and configured SQL Server 2000/2005 components
Environment: Oracle DB 10g/11g R2 with RAC, RMAN, Oracle Enterprise Manager (OEM), 10g DATAGUARD, Putty
Oracle Database Administrator / Analyst
Confidential
Responsibilities:
- Installed Oracle Software 9i Release 2
- Created and designed database for new projects
- Provided 24/7 support for all production databases
- Database Cloning & Advanced Queuing Concepts
- Developed PL/SQL Code for migration of packages and procedures
- Created shell scripts for automating various database tasks in UNIX platform
- Performance and Tuning of databases
- Creation and maintenance of standby databases
- Creating new users and manage roles and privileges
- Managing Rollback Segments, Redo logs, Control files, and Tablespaces.
- Developed and fine tuned PL/SQL & UNIX shell scripts that update the data warehouse on their scheduled run
- Generated reports in Oracle Reports 9i by analyzing the database based on the specific business requirements
- Using Pare do analysis methodology for incidents logged in the Remedy Action Request System, documented re-occurring issues that will be addressed infuture software maintenance releases against the Oracle ERP App Suite
- Got an overview and understanding of Oracle Apps architecture and demonstrated knowledge gained on Order Management module
- Installation and configuration of Oracle Database Software 10g.
- Creation and Configuration of Oracle database.
- Performed the Pre-migration task for RAC & Standalone Database.
- Extensively involved in Real Application Cluster (RAC) nodes 10g database migration
- Migration of database (from 9.2.0.5 to 10.2.0.1) on SUN Solaris 2.7.
- Involved the Post-migration task (Unit-testing) for every RAC & Standalone servers migrated to Canada.
- Worked on RAC on Red Hat Linux Advanced Server with 4 nodes server side load balancing using Automatic Storage Management
- Performance tuning of SQL queries and advising the application programmer of the opportunities in tuning the application.
- Involved in performance monitoring and tuning of the database by fine tuning the database implementation.
- Designed and Implemented database security using Oracle roles and privileges.
- Troubleshoot Database performance issues using Automated Workload Repository (AWR) and Automatic Database Diagnostics Monitor (ADDM). Tuned database for optimum performance.
- Written Stored Procedures and Triggers for database maintenance and management using PL/SQL.
- Communicate and coordinate with Oracle using TAR system for major database issues/ problems; apply the required patches, test (unit test/ system test) and roll out and implement the patches into production.
- Involved in disaster recovery planning; detailed out the processes and procedures of implementing disaster recovery; implemented database backups and disaster recovery strategies using BMC, RMAN and SQL Backtrack
- Installing and Configuring from Oracle 9.2.0.1.0 (9i) database to Oracle 10g.
- Configured Oracle Streams (Advanced Replications) and exchanged data between two databases in remote locations.
- Proactively managed the databases; set up alarms for managing any exceptions in day to day management of the databases; pre-empted and prevented issues disasters from happening.
- Upgrade the data’s from Existing Oracle 9i to Oracle 10g and Migration of database (from 9.2.0.5 to 10.2.0.1).
Environment: Oracle DB 9i/10g, Sun Solaris 10, AIX/V5.3, Linux 4.3, Windows Server, RAC, 10g DATAGUARD, Oracle Application Express, TOAD, IBM AIX UNIX, Oracle Reports 9i, Putt