Oracle Dba Resume
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Downers Grove, IL
SUMMARY:
- 7 plus years of experience in Oracle Database Administration, Database Analysis, Design, Development, Implementation and Testing of Relational Database Management systems for Business solutions.
- Good analytical and planning skills.
- Strong verbal and personal communication skills.
- Have worked with global clients while supporting offshore teams.
- Extensive experience in deployments while working with developers
- Provided production system support to customers with critical issues.
- Provided 24x7 critical production support on large databases using Oracle 11g, 10g
- Worked with Oracle 12c cloud control.
- Performed RAC build from scratch.
- Strong experience in supporting development and production databases.
- Have worked on all Windows, AIX, Sun Solaris, HPUX and different flavors of Linux.
- Implemented High Availability solutions with Oracle 10g/11g R2 RAC, Standby Database Data Guard, Replication.
- Good decision making skills.
- Self - motivated and initiator.
- Ability to work under pressure.
- Good presentation skills.
- Experience in Managing/working with RAC databases
- Upgrade/Migration of Databases from Oracle 9i to 10g and 10g to 11g
- Expertise in Database Space Management, Memory Tuning and Application Tuning.
- Expertise in troubleshooting and performance tuning.
- Experience in Upgrading database instances to 10g R2 to 11g R1 to 11g R2
- Experience in apply PSU patches.
- Worked on different backup methods using RMAN.
- Recovery of Databases (Recovering from Media Failure, Recovering tables dropped accidentally, Recovering data files, Recovering from Block Corruption etc.).
- Expertise in maintaining Database Security using auditing.
- Working experience in both OLTP, DW and DSS environments
- Extensive Knowledge on Flashback
- Extensive experience in Data Guard physical standby databases
- Good knowledge on partitions and clustering of tables
- Worked with different performance utilities like Statspack, ASH, AWR, ADDM, ORADEBUG, HANGANALYZE etc. to troubleshoot performance issues.
- Extensive experience with designing and implementing Oracle databases, cloning of databases and setting up RAC database
- Worked with several Multi node and multi-tier environments.
- Excellent experience in writing SQL
- Excellent knowledge in Hot/Cold Backup and Recovery and Cloning of databases using RMAN
- Good working knowledge in tuning the oracle databases.
- In-depth knowledge of SQL (DDL, DML, and DCL)
- Working knowledge on PL/SQL.
- Used TOAD and ERWIN.
- Extensive knowledge on Oracle Support processes for technical requests with Metalink.
TECHNICAL SKILLS:
Operating Systems: HP-UX, AIX, Windows, Linux, SUN Solaris
Languages: SQL, PL/SQL, BASH shell.
Oracle Tools: TOAD, RMAN, OEM, TOAD, SQL*Loader, DATAPUMP, Export/Import
Hardware/Storage: HP MSA 5000, EMC,VERITAS Net Backup, Tivoli Storage Manager
Tuning Tools: TKPROOF,EXPLAIN PLAN,STATSPACK
PROFESSIONAL EXPERIENCE:
Confidential, Downers Grove, IL
Oracle DBA
Responsibilities:
- Build and supported RAC
- Build Data Guard Servers
- Configured ASM
- Worked with different teams
- Provided 24/7 Production support.
- Worked on projects.
- Migration
- Automating
- Upgradations.
- Setting up new database environment.
- Build Oracle DBA in the Database Management Services group (DMS), which supports and maintains the database infrastructure
- Worked on project to move from standalone servers to RAC
- Build physical Standby Data Guard.
- Practiced DR by performing switchover and failover using data broker.
- Supporting Production and Development databases in 24x7 Environments
- Database environments Installation, upgradation, Migration, Patching, Maintaining of all Oracle versions 8i, 9i, 10g and Oracle 11r2 and
- Operating systems on clustered/shared HP-UX UNIX, Linux and Windows servers
- 200 corporate databases in production, acceptance, development and training environments.
- Work in conjunction with application DBAs to develop and maintain the application database.
- Configuration of Oracle Data guard in Oracle 10g environment, using 11g/12c Grid Control.
- Migration of Oracle database 10g to 11R2.
- Configuration and testing of RMAN, with implementation to production.
- Migration includes the migration from Windows to Linux using Transportable tablespaces.
- Provided test plan documentation for uni-directional GoldenGate.
- Performance tuning and reorganization of Oracle Financials database.
- Use of AWR and Statspack tools to diagnose performance issues with Oracle Application
- Provided Automated Storage Management (ASM) technical assessment document.
- Provided architecture document for the ASM including for Oracle and HP-UX Unix physical and logical layout.
- Installation, configuration and migration of Oracle Financials database warehouse to Oracle ASM.
- Extensive experience with RAID and ASM configuration.
- Administered ASM from command line and grid control.
- Upgrade of ASM from Oracle 11.2.0.2 to Oracle 11.2.0.3
- Configuration of security settings for Oracle Financials involved reconfigurations of Oracle roles, users, creation of triggers, procedures, synonyms and table constraints.
- Responsible for the creation of the ASM Operation( Confidential ) Manual and Quick Reference documentation for use of other team members.
- Automation of Oracle Restart Configuration for the instances under the ASM configuration, part of the Oracle High Availability Services configuration.
- Configuration and installation of VM Ware in Oracle 10g and Oracle 11gR2 environment.
- Worked on SQL Server 2005 and SQL Server 2008
- Configuration and troubleshooting of Oracle Agents connections to Oracles OEM Grid Control.
- Daily use of Oracle Grid Control.
- Installation and configuration of Oracle 10gR1, 10gR2, 11016, 11R2 on HP Itanium HP-UX UNIX servers.
- All work completely documented.
- Perform daily database administration as required.
Confidential Chicago, IL
Oracle DBA
Responsibilities:
- Provided 24/7 suppoHP PA-RISC, HP-UX Itanium, Linux, Windows 2003, Windows 2008.rt.
- Worked on Clustered databases.
- Installed standalone Databases.
- Helped other teams with client installation.
- Installed databases using scripts
- Worked with oracle on ongoing issues.
- Configured Flash Recovery area.
- Written shell scripts.
- Applied patches.
- Worked with developers
- Supporting Production and Development databases in 24x7 Environments.
- Tuning by Statspack/Awr collecting various hourly Snapshots statistics and differentiating
- Monitoring Alert log files to know types of bottlenecks recorded during the day if any, and rising to counter them.
- Responsible for database administration for a large and complex database system using Oracle9i/10g/11g
- Applying CPU (Critical Patch update) Patches and Upgrading Patches on 10g and 11g releases (10.2.0.1.0-10.2.4.0 & 11.2.0.1.0 - 11.2.0.7.0 ).
- Creating Tar with oracle support for Internal Errors Ora-600/7445.
- Refresh of development/test/QA databases from Production backup using Datapumps.
- Rebuilding standby database using production backup and making sure DR and PROD are in sync after change.
- Periodically monitoring Problem management queue and working on problem tickets or sharing across team members.
- Proactively Monitoring alerts, assigning to right queues, Resolving in time based on SLA.
- Identifying issues and resolutions, providing feedback to other team members, and offering any information uncovered throughout daily operations that could benefit other team members.
- Written RMAN shell scripts to purge out old archivelogs and backups.
- Creating Performance Reports using AWR and ADDM
- Cloning and managing Duplicate/Standby on databases using RMAN.
- Recovering the databases using RMAN. Scheduling and managing crontabs Jobs.
- Managing Physical structure of Oracle database like Data files, Redo log files, Control files.
- Monitoring the growth of Tablespaces and taking proper actions
- Doing Trend Analysis of Database for future need of space and capacity planning on disks.
- Maintaining security and integrity of database systems.
- Monitoring and maintaining database availability and resources.
- Planning and managing database backup and recovery.
- Taking Backups of databases using Logical (Export & Import) and Physical (Offline and Online) backups.
- Managing User Level Control Access with Roles and profiles.
- Installing, maintaining and monitoring the database software products, including technical advice and support to the applications Development and Maintenance staffs if required.
Environment: Oracle 8i/9i/10g/11g, RAC, Toad for Oracle v.9.0.1.8 PL/SQL, Oracle SQL Developer, Data Pump, SQL*Loader, Windows/RHEL
Confidential, Austin, TX
Oracle DBA
Responsibilities:
- Support of OLTP database to support e-commerce
- Supported 9i and 10g databases.
- Upgrade from 9i to 10g R2.
- Build Materialize Views
- Worked on various networking issues.
- Cloning of databases.
- Documenting new procedures.
- Applied patches.
- Install VMWare.
- Experience in supporting databases under all flavors of UNIX (Sun Solaris,, HP UX Red Hat).
- Installing & configuring Oracle 10g, 11g,10g RAC,9i on Linux, AIX, Sun Solaris
- Performance tuning and Monitoring using Grid Control database & managing instances using OEM
- Database backups using RMAN on Disk and Tape.
- Designing the security and database access strategies & cloning databases and partitioning tables.
- Experience with DB performance tuning tools
- Experience in Upgrading database 10g to 11gR2 and applied patchset 10.2.0.2 to 10.2.0.4 and on 10.2.0.4 to 11.1.0.7 and also working with upgrading with 11gR2 for multiple database
- Technical lead for a large number of tuning projects. Performed application, SQL, and database instance tuning using a wide range of technologies including ADDM, AWR, Statspack, extended SQL trace (event 10046 trace files), OEM Performance Manager, and custom scripts.
- Installed databases using VMWare
- Administering ORACLE Databases 10g (10.2.0.4), 11g over 10 TB in size.
- Refresh/Cloning of Database for development and testing purpose.
- Involved in Upgrade/Migration of the oracle databases from Oracle 10g to Oracle 11g.
- Worked with Standby Database (Data Guard) setup and configuration using data broker.
- Used EXPDP & IMPDP to take backup at database level or tablespace level and also to accomplish table level and full database de-fragmentation.
- Provided DBA and programming support for all internal and client based Oracle implementations.
- Good working experience of setup managing (Oracle 10g RAC two-nodes/ ASM /Grid Control /Automation/Database Flashback/RMAN) implementation, management, monitoring & troubleshooting.
- Expertise in performance monitoring and performance tuning
- Defining and Setting backup and recovery procedures, Configuration of backup.
- Tuning the database using statspack and custom scripts
- Experience in creating different kinds of partitions on tables and indexes for managing large tables
- Worked with daily refresh activities using EXPDP/IMPDP & Exp/Imp and as well as also using RMAN
- Worked with Streams and also supported large number of databases on streams.
- Applied Security VTM Patches which have been suggested by oracle for number of databases according to the risk level
- Enabling and disabling the Flashback, create restore point, restore point restoration at table and database level
- Tuning and balancing I/O by monitoring file system and tablespace I/O statistics.
- Tuning SGA, I/O Tuning, Identifying contention, waits and tuning.
- Oracle Export, Import, SQL*Loader and data pump utilities
- Worked with moving database from Solaris to AIX and Linux to AIX p6 Servers