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Sr. Oracle Database Administrator Resume

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Charlotte, NC

SUMMARY

  • 11 Years of experience in IT with Financial/Banking/ Pharmaceuticals Domain/Data warehouse Environment involving Oracle Installation, Database configuration and Administration, Unix System level Admin, Backup and Recovery, Tuning, Database Migrations, Stand by database setup, and troubleshooting of various Oracle Products/versions on different UNIX platforms covering Sun Solaris, Linux, AIX, HP - UX and Tru64.
  • Extensive experience in database architecture designing, implementation and administration including installation, upgradation, backup and recovery, testing, implementation, QA, performance tuning, migration and support.
  • Strong exposure in Installing / configuring / maintaining RAC, Datagaurd, Physical / Logical Standby environments.
  • Experience with large databases up to 8TB
  • Strong configuration and troubleshooting skills in ASM.
  • Good experience in Performance/SQL Tuning reading statspack/awr reports, analyzing the Execution Plans.
  • Expertise in Unix/OS level monitoring such as Memory usage, CPU and I/O usage.
  • Experience in working with Production as well as Development environments.
  • Strong experience in Database migration and up-gradation in various platforms. Done several Database patch-set installations as well in one-off patch installation using opatch.
  • Expertise in SQL (DDL and DML), PL/SQL, functions, triggers and packages.
  • Installation of Grid Control for new and existing databases.
  • Setting up the Oracle Management Services and Agents.
  • Expertise in Shell scripting.
  • Establish basic security settings, understand basic HW configuration
  • Configuration and Setup of High Availability Dataguard in 10g for replication.
  • Performs database backup and recovery using Recovery Manager (RMAN)
  • Downsizing and defragmenting the Very Large Databases by export / import, cloning them using RMAN Duplicate features and then upgrading them to Oracle 10g.
  • Solid expertise in third party supporting software likes TOAD, Foglight.
  • Performs data loading/extraction using Oracle utilities such as export/import, Data Pump, SQL*Loader
  • Configures Oracle Enterprise Management Agent (MA) to be accessible via OEM Grid Control
  • Support application teams/customers for any issues with oracle database systems.
  • Analyzing the logs (alert) and trace (process/user) files to diagnose the problem
  • Experience in working with Oracle product support using metalink to resolve critical issues.
  • Cloning/Refreshing databases from production for development, testing purpose.
  • Expertise in OEM grid control for monitoring database systems and scheduling backup jobs
  • Willing to learn and support new technologies.

TECHNICAL SKILLS

HARDWARE: SUN Sparc servers, HP servers, Legacy Compaq, IBM AIX Machines, Pentium & Solaris based PC's

OPERATING SYSTEMS: SUN Solaris, HP-UX, AIX, Linux and WINDOWS 2000/2003

LANGUAGES: SQL, PL/SQL, UNIX Shell Scripting

DATABASES / TOOLS: ORACLE 8.x/9i/10g/11g, Recovery Manager (RMAN), Real Applications Cluster (RAC), VERITAS Backup, Developer 2000, SQL Loader, TOAD, Oracle Enterprise Manager

WEB TOOLS: HTML, Dreamweaver.

PROFESSIONAL EXPERIENCE

Confidential - Charlotte, NC

Sr. Oracle Database Administrator

Responsibilities:

  • Installation and configuration of Oracle 11g/10g databases.
  • Upgraded 30+ Oracle databases from 10.2.0.4 to 11.2.0.3.
  • Backup and recovery - Database backups using RMAN.
  • Given day to day general support to the users for DEV and SIT environments.
  • Created and maintained the documentation for the all upgrades and other database related issues.
  • Administering, monitoring, and troubleshooting the databases performance
  • Applied CPU/PSU (Bug fixes) and other TNS security patches.
  • Restore databases from one server to other from RMAN backups or by using exp/imp or datapump (expdp/impdp)
  • Expertise in using oracle utilities like export, import, and OEM Grid Control.
  • Worked with Weblogic team and configured TNS port connections, stop and start the web services
  • Every day code deployments for DEV and SIT environments and solving deployment issues.
  • Tuned SQL queries using TKPROF and EXPLAIN Plan.
  • Developed UNIX shell Scripts for backups, monthly maintenance tasks.
  • Worked with third party tools such as Quest Toad.

Environment: UNIX platforms: Sun Solaris 5.10, Database Versions: Oracle 10g/11g.

Confidential - Irving, TX

Sr. Oracle Database Administrator

Responsibilities:

  • Working remotely and administering databases.
  • Installation and configuration of Oracle 11g/10g databases.
  • Migrating oracle databases from different flavours of UNIX to IBM-AIX platforms.
  • Backup and recovery - RMAN backups, every day HOT and daily incremental for most of the databases, very few of them having cold backups.
  • Extensive experience in RMAN recovery testing, RAC and standalone database.
  • Upgrading oracle databases from 8i, 9 to 10g and 11g version.
  • Re-creation/rebuild indexes.
  • Administering, monitoring, and troubleshooting the databases performance
  • Upgrade and migration the databases from 8i/9i to 10g, apply CPU/VTM/PSU (Bug fixes)
  • Restore databases from one server to other from RMAN backups or by using exp/imp or datapump (expdp/impdp)
  • Expertise in using oracle utilities like export, import, and expdp, impdp.
  • Tuned SQL queries using TKPROF and EXPLAIN Plan.
  • Developed UNIX shell Scripts for backups, monthly maintenance tasks.
  • Work with third party tools such as Quest Toad and Quest Foglight.

Environment: All UNIX platforms: AIX, Sun Solaris 5.8/5.10, HP-UX and Windows, Oracle 8i/9i/10g/11g.

Confidential - Milpitas, CA

Sr. Oracle Database Administrator

Responsibilities:

  • DBA team which was involved in the maintenance and giving 24/7 support of the Oracle 9i/10g/11g databases for the Production as well as the development environments.
  • Installation and configuration of Oracle 11g/10g RAC databases with ASM on new servers. upgradation from 8i and 9i versions to 10.2.0.4
  • Upgradation from 10g versions to 11g.
  • Administering and monitoring the databases using OEM Grid Control.
  • Running AWR, ASH and ADDM report as part of diagnosis.
  • Installation of 10g agents for OEM grid control.
  • Apply CPU patches (Bug fixes) and ensure that all the SOX requirements are met.
  • Daily data refreshes using expdp/impdp.
  • Configured standby database using Oracle DataGuard for Data Replication.
  • Daily Backups using RMAN and co-ordinating with Storage team for regular backup issues.
  • Cloning and refreshing the UAT and development databases using RMAN.
  • Performance issue tracking and solution making using Statspack. Explain plan used to diagnose the long running queries, sql tuning applied if it required.
  • Develop UNIX shell Scripts for backups, monthly maintenance tasks.
  • Giving on-going support to Development/QA/End users on 24/7 basis.
  • Solving the regular performance issues includes releasing the locks and query tuning.
  • Perform Space Management & Troubleshooting the database issues.
  • Change request Procedure followed to do changes in the production database and document the changes for the reference.

Environment: All UNIX platforms: Sun Solaris 5.10, HP-UX/Tru64, Linux, Windows 2003, Oracle 9i/10g/11g RAC, OID, OEM, RMAN

Confidential - Cambridge, MA

Sr. Oracle Database Administrator

Responsibilities:

  • Installation and configuration of Oracle 10g databases
  • Backup and recovery - RMAN backups, every day HOT and daily incremental for most of the databases, very few of them having cold backups.
  • High availability database configuration and maintenance using HP Service guard failover, Dataguard (standby databases).
  • Administering and monitoring the databases using OEM Grid Control.
  • Install OMS and agents for OEM grid control.
  • Upgrading the Grid databases from 10.1.0.4 to 10.2.x.x.
  • Upgrade and migration the databases from 8i/9i to 10g, apply CPU/VTM/PSU patches and ensure that all the SOX requirements are met.
  • Restore databases from one server to other from RMAN backups or by using exp/imp or datapump (expdp/impdp)
  • Expertise in using oracle utilities like export, import, and expdp, impdp.
  • Respond to alerts in a timely fashion that are generated by both OEM Grid control and Foglight (a monitoring tool from quest)
  • Tuned SQL queries using TKPROF and EXPLAIN Plan, Oracle Partitioning and Indexing.
  • Monitoring using OEM and examine Statspack/AWR/ADDM reports.
  • Create and maintain users, roles and privileges.
  • Develop UNIX shell Scripts for backups, monthly maintenance tasks.
  • Work with third party tools such as Quest Toad and Quest Foglight
  • Write pl/sql procedures as per the requirement.
  • Work with the backup team to resolve all the backup issues, co-ordinate for Netbackup upgrades/maintenance tasks.
  • Maintain the ticket queue by working on tickets and get the work done.
  • Capacity planning and space management, tablespace reorganization.

Environment: All UNIX platforms: Sun Solaris 5.8/5.10, HP-UX/Tru64, AIX, Compaq Tru64, Windows 2003, Oracle 8i/9i/10g, OID, OEM, FOGLIGHT

Confidential - NY

Sr. Oracle Database Administrator

Responsibilities:

  • Installed and configured Oracle enterprise databases on sun Solaris boxes for production, development and staging databases.
  • Upgraded Oracle home from 8i/9i to 10g.
  • Logical Backups by Exports & Imports.
  • Planning for backup and recovery of database information (Using RMAN, Logical Backup & Recovery)
  • Installed Oracle 10g RAC on cluster environment.
  • Involved in design and testing, maintenance of high availability systems like creating and maintaining standby production RAC databases.
  • Upgrading Oracle databases to latest version and patch levels
  • Involved in the routine DBA activities like DB monitoring, System monitoring, tuning database objects by properly sizing the tables/indexes for extents management, backups to tapes and recovery when required.
  • Database refresh and cloning
  • Creating Roles and managing users by granting them system privileges object privileges and context privileges.
  • Involved in UNIX Administration like granting user privileges and security aspects.

Environment: Sun Solaris, Oracle9i/10g, IMP / EXP and OEM

Confidential

Data Center Administrator

Responsibilities:

  • Installation, configuration and upgrading of Oracle server software and related products
  • Maintaining archived data on tape
  • Backing up and restoring the database
  • Implement and maintain database security (create and maintain users and roles, assign privileges)
  • Perform database tuning and performance monitoring
  • Perform general technical trouble shooting and give consultation to development teams.
  • Creating primary objects (tables, views, indexes) once application developers have designed an application.
  • Work as part of a team and provide 7x24 supports.
  • Offering assistance to developers in optimizing their applications, queries, etc.
  • Install of Legato Networker 5.x and 6.1, jukebox
  • Install and support of third party server applications including iPlanet, BEA Weblogic.
  • Bouncing the web services as per user requests.
  • Involving in BCV cut to replica of data from production to UAT/COB databases.
  • Troubleshooting the daily system related problems reported by users accessing to the servers and analyze performance problems & recommend actions to alleviate problems.

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