Oracle Database Administrator Resume
Denver, CO
SUMMARY
- Eight plus years experience as a Oracle Database Administrator primarily worked on UNIX/LINUX (Sun Solaris, HP - UX,AIX, RedHat)/Windows environment, both in production and development environments.
- Oracle Database Administration including Analysis, Design, Performance Tuning, Backup and Recovery.
- Performance Tuning and regular maintenance/monitoring of Production Databases.
- Installed and configured of Real Application Clusters (Oracle 11g RAC, 10g RAC), Standby Databases (DataGuard) for High Availability and Disaster Recovery.
- Ugraded databases from Oracle 8i to 9i, 9i to 10g, 10g to 11g
- Capacity Planning, Physical & Logical Modeling. Disaster Recovery & Security Management.
- Experience in using Export, Import, SQL*Loader, OEM Grid Control, SharePlex, Golden gate.
- Migrated databases from Windows to LINUX, HP-UX,AIX to LINUX
- Analyzing, Coding and Implementation of Oracle based applications.
- Monitoring and management of various database components (logical & physical) like tablespaces.
- Experience in using SQL, PL/SQL stored procedures, indexes, materialized views, shell scripting, partitioned and non-portioned tables, packages and triggers for improved performance of the database.
- Performance Tuning: Experience in identified poor SQL statements using EXPLAIN PLAN, STATSPACK, TKPROF, SQL TRACE, OEM Grid Monitoring.
- Expertise in maintaining Database Roles, Users using Security Compliance Auditing, expertise in loading data from Flat Files using SQL*LOADER and External Table.
- Good experience in managing Very Large OLTP and Datawarehousing databases.
- Involved in Data modeling, logical and physical database designs and worked as on-call support team member for administering OLTP 24X7 production databases.
- Experience on Backup Methodologies (Making Backup Schedules depending upon Business Strategy: Daily Backup, weekly Backup etc.)
- Scheduling jobs through Oracle Job Scheduler, cronjobs (Unix) and Schedule Tasks (Windows).
- Experience on Recovering Databases (Recovering from Media Failure, Recovering tables dropped accidentally, Recovering data files, Recovering from Block Corruption etc.).
- Well conversant in translating business requirements into creation of database objects: tables, indexes, constraints, packages, stored procedures and functions using Oracle tools.
- Excellent communication skills, strong analytical & logical abilities, problem solving skills and fast learning.
TECHNICAL SKILLS
Operating Systems: Sun Solaris, Linux, HP-UX, IBM AIX, WIN 2000
Languages: C, C++, SQL, PL/SQL, UNIX Shell Scripting,PERL scripting.
Database/Applications/Tools: ORACLE 7.x/8.x/9i/10g RAC/11g RAC, Recovery Manager (RMAN), Oracle, TSM, TDP, STATSPACK, AWR,ADDM,ASM,Developer 2000, SQL Loader, TOAD, OEM/GridControl, Erwin, Exadata, Remedy, Siebel, Maximo, Golden Gate.
Business Intelligence Tools: Informatica 6.5, Cognos 6.2
PROFESSIONAL EXPERIENCE
Confidential, Eagan, MN
Oracle DBA
Responsibilities:
- 24 X 7 Production Oracle database support and administration
- Installed, configured and maintained Oracle Databases.
- Evaluating, Supervise, plan, Installing Database servers, Database software, upgrading to new versions, co-coordinating with hardware changes and applying oracle database patches
- Involved in the implementation of High availability with Real Applications Clusters (Oracle 11g RAC, 10g RAC), Disaster Recovery solutions with Standby Databases (DataGuard).
- Oracle Database and SQL tuning using SQL TRACE, STATSPACK, EXPLAIN PLAN, TKPROF, AWR, ADDM
- Identify performance problems using wait event statistics.
- Monitor session-level wait events and collect historical data for root cause analysis Supported the development team at offshore in issue fixing, migrations of code & other support activities.
- Ugraded databases from Oracle 8i to 9i, 9i to 10g, 10g to 11g
- Scripted proactive & scheduled DBA related health analysis & monitoring including instance, index and log health, Maintenance ( Partition tables, Materialized views refresh, Reorg, index), PDA alerts.
- Capturing the database statistics and metrics for proactive database management
- Cloning of production database to the test environment using Recovery Manager (RMAN).
- Resolving Oracle listener and TNS names problems
- Install, configure, upgrade, migrate, patch Oracle GoldenGate and Veridata
- Debugged and resolved oracle GoldenGate on Linux and troubleshooted GG issues
- Monitored the growth of the database objects for capacity planning.
- Database Administration and Planning including database design, backup & recovery.
- Developing a backup and recovery strategy and performed backups and recoveries.
- Re-organizing the tables for better response time.
- Partitioning tables by determining the suitable methodology to improve performance and manageability.
- Implemented data replication through materialized views, GoldenGate.
- Capacity planning and bench marking
- Developed PL/SQL functions, procedures, packages and triggers.
Environment: Oracle 11g RAC,10g RAC,9i, DB2, RedHat Linux, Sun Solaris, HP-UX, IBM Aix, Grid Control, DataPump, RMAN, ASM, TOAD, SQL, PL/SQL, ERWIN, Golden Gate
Confidential, Dublin, OH
Oracle DBA
Responsibilities:
- 24x7 Oracle Production Database Administration.
- Applying patches for both Server side and Client side.
- Refresh/Cloning of Database and applications for development and testing purpose.
- Involved in Upgrading of the oracle databases from Oracle 9i to Oracle 10g.
- Standby Database (Data Guard) setup and configuration.
- Global operations and maintaining database using Oracle RAC and Data Guard/Standby databases.
- Involved in the implementation of High availability with Real Applications Clusters (oracle 11g RAC, 10g RAC), Disaster Recovery solutions with Standby Databases (DataGuard).
- Oracle Database and SQL tuning using SQL TRACE, STATSPACK, EXPLAIN PLAN, TKPROF
- Working alongside programmers and contributing to the development process
- Involved in the Oracle GoldenGate installation, configuration, troubleshooting GG issues
- Creation of the Test, Development and Production Oracle 8i/9i/10g databases.
- Installed and configured of oracle 10gR2 RAC.
- Proactive Support, tuning & troubleshooting of production database.
- Managed backup recoveries, replication, data integrity validation,
- Upgraded databases, Applied patches
- Scripted proactive & DBA related health analysis & monitoring including instance, index and log health, Maintenance ( Partition tables, Materialized views refresh, Reorg, index), PDA alerts.
- Scheduled & coordinated database maintenance activities including such items as database reorganizations, restructures, migrations, tuning, SOX ( Sarbanes-Oxley Act) sensitive views, materialized views & staged data refresh.
- Capturing the database statistics and metrics for proactive database management
- Cloning of production database to the test environment using Recovery Manager (RMAN).
- Monitored the growth of the database objects for capacity planning.
- Migrated databases from windows environment to HP-UNIX servers.
- Database Administration and Planning including logical design, physical design, backup & recovery.
- Developed and implemented a backup and recovery strategy and tested.
- Loading data from flat files into Oracle Database using SQL*Loader, External Tables and automated the process by using UNIX Shell scripting.
Environment: Oracle 10gRAC,9i, RedHat Linux, HP-UX, IBM Aix, OEM, RMAN, SQL*Loader, Oracle GoldenGate
Confidential, Denver, CO
Oracle Database Administrator
Responsibilities:
- 24x7 Oracle Production Database Administration.
- Managing, troubleshooting and resolving oracle database and applications issues.
- Refresh/Cloning of Database and applications for development and testing purpose.
- Working alongside programmers and contributing to the development process
- Planning and recommendations for optimum performance
- Defining and Setting backup and recovery procedures.
- Developing Hot, cold and logical backup scripts to automate the backup procedures.
- Tuning and balancing I/O by monitoring file system and tablespace I/O statistics.
- Experienced in Tuning SQL statements using Explain Plan, SQL Trace, TKPROF, STATSPACK, AWR, ADDM
- Writing Shell Scripts for managing day-to-day activities and automation of backup.
- Optimal Space utilization in table space by avoiding fragmentation
- Usage of Partitions to improve the query performance and manageability.
- Installation of Oracle RDBMS server software and version upgrades.
- Recovery of Database (Recovering from Media Failure, Recovering tables dropped accidentally, Recovering data files, Recovering from Block Corruption).
- Participated in Disaster Recovery Drills, documented database and application validation steps
- SQL and PL/SQL Programming
- Installation and configuration of Oracle Client software and Tools.
- Installation, Configuration, Maintenance of Oracle Applications.
- Automated the process of analyzing tables every night.
- PL/SQL Programming (Functions, Procedures,Packages and Triggers)
- Capturing the database statistics and metrics for proactive database management
- Cloning of production database to the test environment using Recovery Manager (RMAN).
- Resolving Oracle listener and TNS names problems
- Developing a backup and recovery strategy and tested several recovery scenarios.
- Perform ongoing database administration, maintenance, troubleshooting, tuning, installation, backup and recovery.
- Estimated Storage capacity for database objects.
- Monitored the growth of the database objects for capacity planning.
- Database security, job scheduling and documentation.
- Investigating suspicious database activity using auditing.
- Applied DST (Daylight Savings Time) patches
Environment: Oracle 10gRAC,9i, 8i, Sun Solaris, RedHat Linux,OEM, RMAN, SQL*Loader, PL/SQL
Confidential
Oracle Database Administrator
Responsibilities:
- Database Administration support for Production, Development and Test Databases
- Installed Oracle 10g, 9i databases
- Attend meetings with data modelers, developers and other DBAs in the organization
- Backup/Restoration, scheduling Backups, taking Backups
- Coordinate with Unix Administrators for space management on various servers
- Capacity Planning, Storage Allocation and Space Monitoring & Management.
- Migrated database’s from windows environment to Linux servers.
- Data Refresh in Test and Integration Databases using Transportable Table spaces.
- Support & Maintenance of Production/Development Databases on various servers.
- Logical and Physical Modeling using ERWIN.
- Creating users, roles and managing privileges.
- Creating tables, views, synonyms, database links
- Developed several PL/SQL programs functions, procedures, packages and triggers
- Automating cloning, backup and repetitive tasks
- Writing scripts for monitoring the DB, Configuring SQL* Net,Integrating multiple applications
- Performance monitoring and tuning using SQLTRACE, EXPLAIN PLAN, STATSPACK, AWR, ADDM
- Performance Tuning of the database (Memory Allocation Tuning, I/O Tuning, Tuning Contentions)
- Refresh/Cloning of Database and applications for development, testing
- Backups and Recovery i.e. exports/imports, hot archive log backups, cold offline backups, etc
Environment: Oracle 10gRAC,9i, 8i, Sun Solaris, IBM Aix, RedHat Linux,OEM, RMAN, SQL*Loader