Oracle Dba Resume
IA
SUMMARY
- Total of 8 plus years in Oracle Database Administration.
- Worked on 9i, 10g, 11gR2 Oracle and SQL Server 2005/2008 on SQL Server RDBMS.
- Proficient in Oracle Backup and Recovery using RMAN and user managed backups.
- Proficient in ASM creation, administration and management.
- Proficient in data refreshes and data movement wif export/import and Data pump
- Build, administered and managed Data Guard.
- Build RAC from scratch.
- Proficient in Flashback Recovery and other restore/recovery techniques.
- Experience monitoring Oracle RDBMS availability, database exports, tablespace, and extents reports.
- Worked on Grid control for monitoring
- Comfortable wif both command - line and GUI interface.
- Install and managed databases on Windows.
- Very proficient on Linux, AIX, HPUX and Solaris.
- Poses strong administrative skills in RHEL.
- Managed different sizes of database ranging from 100GB to 2.5TB.
- Experience in on-call support and 24x7 DBA for production environment.
- Extensive experience on providing solutions to developer/user requests.
- Extensive experience in resolving issues and bugs related to databases.
- Proficient in performance and maintaining large volume of data.
- Worked on migration project.
- Worked on Upgrade projects to upgrade from 9i to 10g to 11g R2.
- Worked on 12c Cloud control.
- Excellent command in creating Backups & Recovery procedures and Implementing BACKUP and RECOVERY strategies for hot and cold Backups.
- Hands on experience of database Backup and Recovery using RMAN.
- Strong experience in OEM (Oracle Enterprise Manager), Oracle Data Guard, SQL* Net, SQL Loader and SQL*PLUS, STATSPACK, Explain Plan and TOAD.
- Proficient in writing UNIX Shell scripts to automate business process and daily backup.
- Worked wif oracle while troubleshooting RDBMS/patching issues.
- Hardworking, result oriented good interpersonal and communication skills.
- Extensive experience in supporting multiple production databases running 24 x 7 mission-critical / OLTP applications demanding high availability and increased performance
- Created and managed remote server for Materialize Views
- Team Lead coordinator between technical operations team (DBA) and applications users/information systems/processing specialists
- Performed analysis of RDBMS performance using ASH, AWR, ADDM, SQL tracing, tkprof, statspack etc.
- Worked wif different onsite and offshore teams.
TECHNICAL SKILLS
Operating Systems: RHEL, Windows, AIX, CentOS, HP-UX, AIX
RDBMS: Oracle 9i, 10g, 11g R1/R2
High Availability: RAC, HAS, ASM, Data Guard
Languages: SQL, Shell scripting, T-SQL
Tools: RMAN, OEM, SQL*Loader, exp, imp, expdp, impdp, ERWIN, TOAD, etc
Tuning Tools: TKPROF, EXPLAIN PLAN, STATSPACK, ASH, AWR, ADDM
Database Modeling: TOAD
PROFESSIONAL EXPERIENCE
Confidential, IA
Oracle DBA
Responsibilities:
- Supported different clients wif multi-terabyte databases.
- Installed Standalone and RAC Database Servers
- Completely build RAC from scratch including OS and RAID configuration.
- Scheduled meetings wif application team for database migration review to gather legacy information such as type of application, database options, current oracle configuration, capacity and oracle outstanding tasks.
- Build Data Guard
- Worked and resolved Gaps.
- Setup and documented Oracle GlodenGate uni-directional replication
- Applied CPU/PSU patches.
- Worked on Migration project where a data center is moved.
- Developed, revised and implemented policies, standards, procedures and guidelines necessary to TEMPeffectively administer teh database environments.
- Ensure databases adhere to corporate standards and policies.
- Worked wif application team, developers, change management team and DBA team to ensure smooth life cycle progress from development through testing and production implementation.
- Monitoring and maintaining 2/3 node RAC database on Red Hat Linux. Providing support to teh development team and handling release schedules.
- Maintaining sound backup and recovery policies and procedures using RMAN. Monitoring teh scheduled backup procedures for daily basis using crontab.
- Database refreshes using export /import and datapump. Used RDA, ADDM and AWR reports to monitor teh database performance.
- Used power designer, E/R Studio for data modeling and to estimate teh database size, database design reviews.
- Implemented SQL outline to get teh better execution plan for teh offending queries. Setting up analyzing scripts and coordinated wif development team to gather table statistics.
- Perform Database Tuning & Performance, Storage Management, Plan growth and changes (capacity planning), Database Monitoring, Security Management and Tuning SQL queries.
- Day to Day General Administration Tablespace Management, Undo Management, Managing Users, Resources, Managing User Privileges and Roles.
- Diagnosed Oracle bugs and coordinating wif Oracle support through metalink to resolve them in timely manner.
- Performed various tasks like Administering RAC using SRVCTL, Adding nodes and instances, Administering Storage Components, Parameter Management, and Configuring High Availability Features for RAC.
- Primary DBA for 1GB - 2.5TB database for 24/7 support.
- Upgrade Data warehouse Database from 8K block size to 32K block size to optimize performance.
- Worked on OLTP and Data warehouse farms.
- Refreshed multiple databases for Development and Testing upon short request.
- Served as part of a 7 member DBA team which was involved in teh maintenance of teh Oracle 9i/10g database for teh Production as well as teh development environments.
- Actively involved in designing/Testing of Disaster Crash recovery.
- Performed database cloning/exp/imp to setup identical databases in teh production and development environments.
- Created and maintain users, roles and privileges.
- Involved in discussions wif teh management regarding teh advantages/disadvantages and upgrade plans.
- Perform Backup and Recovery thru RMAN.
- Strong exposure in Installing / configuring / maintaining RAC, Dataguard, Physical / Logical Standby environments.
- Applied Quarterly CPU (CRITICAL PATCH UPDATES) on teh entire database farm.
- Performed Export/Import through Data Pump.
- Build Grid control for Monitoring 40+ database.
- Provided technical troubleshooting and give consultation to development teams.
- Performed Database Refreshes and Database Copies for Development, Test and Production databases.
- Implemented basic replication through Materialized Views.
- Involved in monitoring teh lock processes, releasing locks in case of resource blockage and gathering statistics.
- Initiated cronjobs to review alert logs and dump files to check for any ORA- errors.
- Used & ADDM to monitor database activities and performance tuning.
- Performed Database Administration using TOAD, Oracle Enterprise Manager and SQL scripts.
- Installed, migrated, configured and tested Oracle 11g databases in various environments.
- Extremely dedicated, self - motivated, Pro-Active and willing to assume responsibility.
Environment: PL/SQL, SQL, SQL*Plus, Oracle 8i,9i, 10g, 11g; RHEL, AIX, Windows NT/2000, HP UX,TOAD, Grid Control, GlodenGate, OEM, SQL Developer
Confidential, CA
Oracle DBA
Responsibilities:
- Configured and Managed ASM disks and disk groups thru both Grid Control and ASMCMD utility.
- Configure ASM for Oracle 10G R1 installation wif RAW devices which include clustered file system for RAC.
- Conducting Installations of Oracle9i and Oracle 10g, Oracle 11g, sizing/capacity planning efforts for teh Oracle database applications on varied platforms like Solaris, Windows and Linux Servers
- Data modeling / Logical database design and implementation (including index design)
- Migration of system and applications from Oracle 9i to 10g, 10g to 11g using Database
- Configuring and using teh Oracle Enterprise Manager in 10g for Performance, Maintenance and Administration tasks
- Create and maintain multiple databases.
- Create multiple 11g databases on RHEL5 in development.
- Schedule backup in 11g using db console.
- Improving teh performance of teh database by tuning SQL and database instance parameters using Automatic Database Diagnostic Monitor and SQL Tuning Advisor in Oracle 10g
- Using TCP/IP Protocol Configured SQL*Net files on server / client machines, and resolved client connectivity issues.
- Constant monitoring of database space and space management
- Setting up Oracle Standby Data Guard.
- Setting up of Oracle and Application user accounts and passwords, monitoring application security
- Responsible to improve teh performance by Using teh Hints, Indexes, Explain Plan
- Performance tuning of SQL statements using STATSPACK, TKPROF, Explain Plan and SQL Trace
- Devised an efficient backup and recovery strategy and implemented it in line wif Business requirements (SQL Backtrack and RMAN)
- Automating teh backup processes using shell scripts. Performing recovery in cases of system crashes.
- Worked wif RAC implementation team. Added nodes.
- Tablespace management including, adding/resize data files, allocated quotas to user and managed disk space
- Help developers writing database triggers, packages, procedures, functions, utilities for application development.
- Export and Import of User, Tables and Database using exp/imp and Data Pump.
Environment: PL/SQL, SQL, SQL*Plus, Oracle 9i, 10g, 9iAS; Sun Solaris Unix, Linux Windows XP, Oracle Forms 10g, Oracle Streams Oracle Reports 10g, Oracle Developer
Confidential, IL
Jr. Oracle DBA
Responsibilities:
- Installed Oracle and SQL server Databases as per teh standards.
- Applied patches.
- Worked on TNS names
- Helped other DB users installing clients and updating drivers.
- Worked as Level-1 DBA then promoted to Level-2 DBA
- Worked wif oracle on troubleshooting networking issues.
- Worked wif oracle on new releases and bug fixes.
- Coordinated instance shutdown/startup using srvctl utility during maintenance times.
- Worked on VMWare
- Mostly handled deployments in development environments.
- Applied on-off and CPU patches.
- Worked on tablespace management.
- Written shell scripts to regular purge of log and trace files.
- Heavy usage of sharepoint to document procedures and make standards.