Oracle Core Dba Resume
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Austin, TX
Objective
- Oracle RAC DBA seeking opportunities to apply expertise toward solving large, complex IT challenges.
- Ability to utilize over 4 years of experience in Information Technology and System Analysis to design, develop and implement IT solutions.
SUMMARY
- 4 years experience as ORACLE RAC DBA administrating Oracle 11g, 10g, 9i.
- Extensive hands - on experience in performance tuning, backup/recovery using RMAN and space management for large databases in Production, Testing and Development environments.
- Skilled in high-volume workflow with creative problem resolution skills.
- Experience includes design, development, implementation and production support for ERP PeopleSoft (HRMS and FINANACE).
- Experienced in troubleshooting, inter-departmental coordination and time management.
- Consistently promoted to positions of greater responsibility.
- Production maintenance and 24x7 support for High availability (RAC) systems.
- Worked to secure database for SOX by implementing roles, profiles and Oracle’s best security practices.
- Worked in project organizational, architecture design and technical management background from development to production.
TECHNICAL SKILLS
Languages: PL/SQL, SQL, Java, Visual Basic, UNIX Shell Scripting.
RDBMS: Oracle 11g/10g/9i, SQL Server 2000, MS Access.
Operating System: UNIX, Solaris, HP-Unix, AIX5L, Linux, Windows, MS-DOS.
Web Development: XML, HTML, ASP, JSP.
Tools: SQL*PLUS, TOAD, PUTTY, OEM Grid Control, RMAN, External Tables, Imp/Exp and Data pump, SRVCTL, ASM.
PROFESSIONAL EXPERIENCE
Confidential
ORACLE Core DBA
Responsibilities:
- Working with clients (fortune 500 companies) to resolve their Oracle Database issues
- Responsible for administering day to day operations of all Oracle databases.
- Primarily responsible for creating, maintaining, and managing highly visible production databases.
- Responsibilities also included installing, upgrading, patching, tuning, monitoring and troubleshooting.
- Databases with large amounts of data and high transaction rates.
- Resolved performance issues via AWR, ADDM, and ASH.
- Tuned Databases by resizing SGA, PGA, redo logs, Temp and undo tablespace.
- Identified Blocks, locks, waits and maintained statistics of the database and tuned them.
- Applied both patches (CPUs and RDBMS) when appropriate.
- Participated DBA Team in all change management meetings to provide DBA input.
- Implemented any ad hoc changes to database data.
- Configured Dblink to get data from the remote databases.
- Monitored disk spaces (track and trend space utilization). And Raid level recommendations.
- Created new RAC Databases whenever needed.
- Configured RMAN as backup method for Oracle.
- Refresh dev/test databases via RMAN Duplicate /EXP/EXPDB .
- Utilized UNIX shell scripting and cron/scheduler to perform Automation of system related daily tasks.
- Manage standby databases.
Confidential, Austin, TX
Oracle DBA
Responsibilities:
- Provided production DBA support to clients and created new databases.
- Worked with Platforms: Solaris 5.9, Sun V-490 (4 X UltraSPARC-1V 1.35 GHz), Linux.
- Used Database: Oracle (9.2.0.8) / (10.2.0.2).
- Supported Java developers for ongoing physical and logical modifications to existing systems, issues/errors and bugs.
- Participated on the DBA Team in all change management meetings to provide DBA input.
- Administered day to day operations of all Oracle databases such as tablespace space, index and table fragmentation
- RAC Database creation, review and research of appropriate database configuration parameters.
- Tuned Databases by resizing SGA, PGA, redo logs, Temp and undo tablespace.
- Ensured the high availability by proactively monitor and optimize oracle database infrastructure through Grid control, ADDM, AWR, ASH and other tools or sqls.
- Applied both patches (CPUs and RDBMS) when appropriate.
- Implemented parallel execution for performance and created views for performance and security.
- Handled the Backup, Recovery and Refresh planning for a RAC database and implemented using RMAN.
- Wrote UNIX shell & SQL scripts for ease in DBA tasks and to automate the batch processes.
- Used SQL*Loader and new features of 9i to load data such as External tables.
- Troubleshot processes from start to finish by setting events 10046 and using TKPROF.
- Monitored CPU usage, I/O contention, memory paging on UNIX server.
- Implemented table partition for manageability and performance.
- Identified locks, waits and maintained statistics of the database and tuned them.
Confidential, Mequon, WI
(Internship) DBA
Responsibilities:
- Installed and created Oracle 9i, 10g Databases on Windows / Linux servers.
- Performed regular maintenance and performance tuning on Oracle 9i, 10g database.
- Providing maintenance of user accounts, privileges, profiles and roles.
- Managing undo segments, processes, memory, online redo log files, data files.
- Creating logical and physical design; installing and upgrading databases.
- Performed monthly maintenance and performance tuning on database.
- Setting off initialization parameters, and configuring online redo logs.
- Created primary database objects such as tables, views, and indexes.
- Knowledge of the database security by granting of roles and privileges to the users.
- Setting up logical / physical backups for these databases.
- Depending upon the nature of the database, setup of either full export, partial export or export of just structure of schema objects and cold or hot backups.
- Managed the disk space, data blocks, extents, data segments, index segments, temporary segments.
- Monitored the alert logs and trace files and mirrored the control files and multiplexing the redo log files.
- Killed long running queries that may have caused database to slowdown.
- Research options of better performance tuning, backup, validation, and restores.
- Assisted windows admin to create and run scheduled tasks do daily maintenance, and backups.
- Research RMAN to do backups on multiple databases.