Oracle Database Administrator Resume
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 the databases from 10g to 11g RAC
- Tuned the 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 the 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 the 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 the database with latest patch updates.
- Refreshed database from production to test and other development environments.
- Written shell script to monitor the 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 the 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 the hot backup on production environment. And Incremental backup for the 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 the tables and taking output for database report.
- Simulate a copy of production databases into test databases for application upgrade testing.
- Support and advise the development teams on database related issues.
- Assisted developers in tuning SQL statements in the 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 the 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 the Database and the software using Recovery Manager and VERITAS.
- Generated regular Stats-Pack reports for the performance tuning of the databases.
- Experience with DBUA/Export and Import to migrate the database.
- Responsible for optimizing data access and performance by tuning indexes.
- Performed Replication of the Production database for setting up instances for the QA and Testing teams.
- Hands on experience in writing UNIX Shell Scripts.
- Managed the 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 the 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 the 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 the 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 the integrity of the physical system backups.
- Responsible for optimizing data access and performance by tuning indexes.
- Managed the 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 the Oracle database System.
- Performing Backup/Recovery of all the Oracle databases using RMAN.
- Performing all the Database Administration activity like space management in database, user and roles administration, schema management, checking alert log of all the databases
- Involved in the process of tuning and refining queries of various applications.
- Involved in the writing most of the packages, procedures, and functions for the application.
- Involved in the process of exploring new areas of Oracle and its products.
- Worked as Database administrator for the Human Resources database.
- Oracle 9i Database software in Linux, created database according to the 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