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Oracle Database Administrator Resume

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Providence, RI

SUMMARY

  • 7 Years of experience in Oracle database administration managing large size databases. Production support DBA for Oracle Real Application cluster databases with Oracle Data Guard and Recovery Manager on Solaris, Linux,HP - U/X and Windows environments.
  • Involved in upgrading databases from Oracle 9i/10g to Oracle 11g Release 2 by using Golden gate.
  • Involved in upgrading more than 50 databases from Oracle 9i to Oracle 10g Release 2.
  • Experience in handling performance issues
  • Installed, configured oracle 10g RAC on solaris and linux platforms.
  • Configured additional nodes to existing RAC environment.
  • Experience on 10g oracle enterprise manager (OEM) and oracle grid control.
  • Configured oracle physical and logical standby databases in oracle 10g dataguard Implemented switchover,failover and switchback in dataguard setup.
  • Experience on Oracle10g ASM Automatic storage management.
  • Restored and recovered lot of databases by using both Rman and Manual backup methods.
  • Experience on oracle Database Re-organization and oracle partitioning
  • Expertise in cloning database for test and training purposes using Oracle Recovery Manager.
  • Experienced with UNIX Shell scripting.
  • Cloning/Refreshing databases from production for development, testing purpose
  • Installed various Oracle bug fix patches on Sun Solaris and HP UX environments.
  • Installed, administered and maintained Oracle software on Sun Solaris and Linux environments.
  • Hands on experience with Change, Release, Incident and Problem management processes.
  • Experience in working with ticketing tools Manage Now, Maximo & service desk etc
  • Experienced with Oracle backup and recovery using both manual and RMAN.
  • Experience in working with Oracle product support using metalink to resolve critical issues.
  • Oracle SQL*Net Network Configuration, LDAP configuration with OID
  • Provided 24x7 Oncall support for production databases in RAC and Non-RAC environment.

TECHNICAL SKILLS

Databases: Oracle11g, Oracle10g/10g RAC, Oracle9i

Operating systems: Sun Solaris, HP-UX, AIX and Windows.

Languages: SQL, PL/SQL, UNIX Shell Scripting

Tools: Oracle Enterprise Manager, grid control, ASM, Golden Gate, Oracle Data Guard, RMAN Oracle Recovery Manager, LDAP, OID

PROFESSIONAL EXPERIENCE

Confidential, Providence, RI

Oracle Database Administrator

Responsibilities:

  • Installed, configured Oracle 11g/10g enterprise edition databases and oracle 10g RAC.
  • Installed security pataches using all node down minimum downtime and rolling patching methods
  • Adding additional nodes to existing RAC database
  • Routine RAC database administration using RAC utilities SRVCTL & CRSCTL
  • Installed oracle 11gR2 on sun solaris and created databases
  • Upgraded databases from oracle 10g to oracle 11gR2 version
  • Configured dataguard using physical and logical standby database.
  • Performed switchover and failover using Dataguard configuration
  • Performed database point in time recovery using RMAN.
  • Working extensively on Golden gate for migration teh databases from 10g to 11g RAC
  • Tuned teh databases to optimal performance
  • Worked on oracle 10g grid control.
  • Performed daily routine backup checking and other user actives.
  • Applied oracle security patches databases every quarter.
  • Handled 24x7 On-call support for teh databases availability.
  • Upgraded databases from 10.2.0.2 version to 10.2.0.4 version.
  • Cloned databases using hot backup.
  • Written shell scripts to check teh backup status
  • Implemented RMAN Recovery manager & EXPDP data pump backups for all production databases
  • Handled User management and resolving application connectivity issues.
  • Managed tablespaces, space related issues.
  • Coordinated with server team and backup team for any issues related to their respective track.
  • Responsible for migrating Oracle Internet Directory (OID) environment from 10g standalone configuration to high availability cluster configuration, which uses Oracle 11gR2 RAC/ASM technologies.
  • Worked with Patch Management on Oracle databases. Updated teh database with latest patch updates.
  • Refreshed database from production to test and other development environments.
  • Written shell script to monitor teh databases status and backup status.

Environment: Oracle 10g/11g, Unix, SQL tuning, TOAD, OEM, SQL Developer, SQL Loader, RMAN, Data Guard, Shell Scripts, BAC, Grid Control, Golden Gate

Confidential, Boise, ID

Oracle DBA

Responsibilities:

  • Installation and Configuration of Oracle VM Manager on Linux. Creating and managing user for VM Manager.
  • Created and Managing Server Pool on Oracle VM environment with oracle VM Manager.
  • Created Virtual Machine on Oracle Virtual environment manually as well as with Oracle VM Manager with ISO file and oracle template.
  • Monitoring Oracle VM Manager on Linux.
  • Created Fully Virtualized and Para virtualized Oracle Virtual Machine with iso file and with use of oracle templates.
  • Performed backup of VM Manager.
  • Supported Oracle 9i Environments (Tru64, Windows) for SAP R/3 & BW applications
  • Oracle databases supported for SAP R/3, SAP BW, SAP APO, GTS and XI applications
  • Created and managed ISO pool, running pool to create and manage Oracle VM Machine.
  • Manually configuration of vm.cfg files to manage Oracle VM Machine.
  • Installation and Configuration of Oracle Linux (OEL-5) on Oracle Virtual Machine.
  • Installation and Configuration of CRS, ASM and RAC Database on Oracle Virtual machine manually and with use of template.
  • Performed cloning of VM Machine, Created templates from VM Machine.
  • Creating and adding shared disk to Oracle Virtual Machine.
  • Tuning and Monitoring of Oracle VM machine with Oracle VM Manager.
  • Configuration of primary and standby database setup dataguard on Oracle 11.2
  • Reconfiguration of OCR and create all CRS service manually on windows.
  • Performed Day-to-day Activities database related activities.
  • Archive logging is essential for production databases where teh loss of a transaction might be fatal created UNIX script to move Archive log.
  • Performed Defragment a tablespaces when an object's storage parameters are sized improperly.
  • Creating Users and assign roll and privileges.
  • Space Management, User management in production environment.
  • Database up gradation from 10.2 to 10.3 and 10. 2 to 11.2. by using Golden gate
  • Migrated databases by using Golden gate
  • Performed datagaurd setup in production environment in Oracle 11.2
  • Performed physical standby database setup in oracle 9i.
  • Performed database cloning using hot backup technology for production and cold backup in development environment.
  • Upgradation of RAC Database from 10.2.0.4 to 11R2 on windows.
  • Configured RMAN for teh hot backup on production environment. And Incremental backup for teh development environment.
  • Experience with performance tuning, data extraction, shell scripting - Korn
  • Supported a large environment running various versions of Oracle.
  • Monitored Alert logs on continuous basis.
  • Working with space management adding new data files and managing tablespace, Created new tablespace. Performing defragmentation of tablespace.
  • Rebuild new indexes whenever needed.
  • Working with internal and external customers to develop new value-added programs and data solutions with existing data structure - Act as liaison with customers - Tests designed applications..

Environment: RAC, Golden Gate, Tkprof, Grid, Toad, 11gR2, Data guard, ASM

Confidential, CT

Oracle DBA

Responsibilities:

  • Providing production support for 24X7 database availability for Oracle.
  • Maintenance and monitoring of oracle 11g/10g database instances hosted on Linux and Sun platform.
  • Upgrade and Migration of Databases from 10g R2 to 11g R2 and applying patches as per requirement using datapump.
  • DBA activities such as configuring Grid events, Regular Backup’s, Replication, Tuning, and troubleshooting performance issues.
  • Role on Data Analysis like defining teh tables and taking output for database report.
  • Simulate a copy of production databases into test databases for application upgrade testing.
  • Support and advise teh development teams on database related issues.
  • Assisted developers in tuning SQL statements in teh applications.
  • Performance tuning of SQL Server and Query Optimization
  • Space Management which includes table space creation, adding new data files.
  • Managed Table spaces, Rollback Segments, Redo Logs and database objects.
  • Oracle installation, creation of database, which includes physical and logical design.
  • Assisted developers in creating stored Procedures, Triggers, Functions, Cursors and Packages.
  • Involved in support for 1TB 2 Node production RAC database.
  • Responsible for monitoring and resizing Oracle database objects (Table spaces, Tables, Indexes etc,
  • Responsible for memory and Application tuning of teh databases using Oracle utilities like OEM, SQL Trace, TK Prof and Explain Plan.
  • Partitioning of large tables for fine tuning performance.
  • Designed and implemented crash recovery strategies, and Hot, Cold and Logical backup plans.
  • Taking periodic Backup of teh Database and teh software using Recovery Manager and VERITAS.
  • Generated regular Stats-Pack reports for teh performance tuning of teh databases.
  • Experience with DBUA/Export and Import to migrate teh database.
  • Responsible for optimizing data access and performance by tuning indexes.
  • Performed Replication of teh Production database for setting up instances for teh QA and Testing teams.
  • Hands on experience in writing UNIX Shell Scripts.
  • Managed teh existing databases by applying new required release modification to existing database structure and applied new Oracle patches as required.
  • Generated Automatic Workload Repository (AWR) report to collect processes and maintained performance statistics for problem detection & self tuning purposes.
  • Generated Automatic Database Diagnostic Monitor (ADDM) in order to analyze data in teh Automatic Workload Repository (AWR) in order to identify potential performance bottlenecks.

Environment: ORACLE, SQL Server, SQL*Plus, Oracle 11g/10g, Red Hat Linux 4.x, RAC, Solaris 10, Oracle Enterprise Manager, Data Guard, ASM, PL/SQL, RMAN, Toad.

Confidential

Oracle DBA

Responsibilities:

  • Responsible for support and maintenance of very critical 24x7 Production and development databases in Oracle 9.2.0.8
  • Performed Database migration from Oracle 9.2.0. To 10.1.0.3.
  • Worked on designing, creation and administration of databases.
  • Technical support to all 63 remote locations for teh rectification of problems related with oracle database and Application Server.
  • Performed logical and physical tuning, monitored extent growth and fragmentation, audited object creation
  • Backup and recovery utilizing RMAN.
  • Perform Instance tuning using tools like Stats pack etc.
  • Installing patches and upgrades for teh database.
  • Created and managed both system level and object level roles and privileges for various users. Killing sessions and revoking user privileges and roles.
  • Worked on export and import utilities.
  • Involved onsite-offsite co-ordination as lead.
  • Leaded a team of 19 Oracle DBA managing 65 Database running at different locations.
  • Responsible to see that database backup and recovery strategies are in place, and to coordinate with Network Services and/or Data Center personnel to keep teh integrity of teh physical system backups.
  • Responsible for optimizing data access and performance by tuning indexes.
  • Managed teh existing databases by applying new required release modification to existing database structure and applied new Oracle patches as required.

Environment: SQL*Loader, SQL*Plus, Oracle 9i/10g, LINUX, HP-UX, Solaris 9,SQL Server 2005, Windows 2000.

Confidential

Jr. Oracle DBA

Responsibilities:

  • Handling day-to-day activities.
  • Database administration of teh Oracle database System.
  • Performing Backup/Recovery of all teh Oracle databases using RMAN.
  • Performing all teh Database Administration activity like space management in database, user and roles administration, schema management, checking alert log of all teh databases
  • Involved in teh process of tuning and refining queries of various applications.
  • Involved in teh writing most of teh packages, procedures, and functions for teh application.
  • Involved in teh process of exploring new areas of Oracle and its products.
  • Worked as Database administrator for teh Human Resources database.
  • Oracle 9i Database software in Linux, created database according to teh requirement of Application Software, monitored and configured databases.
  • Oracle Database Administration (logical & Physical database backup, database tuning)
  • Daily database backup, table space administration, SQL net configurations and basic database tuning as part of maintenance activities.
  • Maintenance of existing system and provided advanced level support.
  • Involved in System study, Analysis, Design and Development.
  • Developed back-end Stored Procedures, triggers, functions.
  • Worked on import/export and SQL- loader.

Environment: Oracle 9i, Informatica, RMAN, Solaris, Erwin, Sql Server 2000, Windows NT

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