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Oracle Dba Resume

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Tempe, AZ

SUMMARY

  • Over 10 years experienced as an Oracle Database Administrator in a multiplicity of database environments such as Online Transactional, Data Warehousing and General purpose database.
  • Experience in database administration, production support, installation, upgrade, configuration, patches, performance and tuning, backup and recovery, export/import, storage management, database security, auditing, replication and designing databases.
  • Strong Experience in Installing / configuring / maintaining Production, QA & DEV Oracle 10g/11g/RAC 11g in UNIX/LINUX, HP - UX and Windows Servers.
  • Management of schemas, objects, indexes and tables partitioning, and indexes optimization for high-performance applications.
  • Database defragmentation and reorganization, optimizing the database storage according to the application purpose, for example, organizing the transactional tables and redo logs in a high performance storage such as SSD.
  • Proactive Monitoring, identifying opportunity areas in the database using Statspack, AWR, ADDM, Spotlight, and 10g/11g OEM Monitoring.
  • Hands - on experience with RAC Cluster ware configuration, administration and patching, RAC Backup and recovery.
  • Worked extensively in Hot/Cold Backup and Recovery and Cloning of databases using RMAN.
  • Experienced in using Oracle features Export/Import Data pump, FlashBack, AWR, ASM, ADDM, Grid Monitoring, Recycle Bin.
  • Performance and Tuning experience, specializing in SQL and Database/Instance Tuning, and Operating System Tuning.
  • Involved in different scenarios of OLTP as well as DSS (Data warehouse) databases with large-scale (multi TB) databases.
  • Experience in installing and troubleshooting Golden Gate issues using command level tools and utilities as well as LOGDUMP utility.
  • Experience in Cloning databases and Oracle Golden Gate Replication.
  • Good experience in Table and Index Partitioning, Logical and Physical Database Design, Backup and Recovery policies.
  • Proficient in using OEM (Oracle Enterprise Manager), SQL Developer, TOAD, Spotlight, Export/Import, Export/Import data pump.
  • Expertise in maintaining Database Security using security compliance auditing.
  • Expertise in loading data from flat files using external tables, SQL*LOADER.
  • Experience in Data warehousing and ETL (INFORMATICA,OBIEE)
  • Experience in ORACLE Database administration including space management, User Management (roles and profiles), Password Management.
  • Performed database tuning which involved I/O, Memory, CPU utilization, SQL Tuning, SGA tuning, Shared Pool tuning, Buffers and Disk I/O tuning.
  • Experience in shell scripting, PL/SQL scripting and scheduling jobs using cron, DBMS JOBS, DBMS SCHEDULER and OEM.
  • Experience in on-call support and 24x7 DBA support for production environment.
  • Configured and maintained Physical Standby (Data warehouse) Databases for the Production databases using Golden Gate.
  • Downsizing and defragmenting the Very Large Databases (VLDB) by export / import.
  • Profound knowledge of Oracle BRM, Web Logic, and Oracle Enterprise Manager 11g.
  • Applied patches as required for Oracle Databases.
  • Experience in Database migration on various platforms.
  • Experienced in Oracle Support processes for technical requests through Metalink and other Support Procedures.
  • Effective and efficient *NIX and Shell scripting (Ksh, Bash) experience.
  • Worked for 2 years as a Software Engineer, providing support for GE clients located in USA; all the communication was in English.
  • More than 3 years working in the Education, maintaining all the systems of the Institution and working as a Teacher as well.
  • Proactive and self-taught, Ability to work under extreme pressure.
  • Excellent Written and verbal Communication skills with a customer service oriented attitude.

TECHNICAL SKILLS

Operating System: Red Hat Linux, Solaris, HP-UX, AIX, Windows NT/2003/XP/7/8.

Databases: Oracle 8i/9i/10g/11g,RAC 10g/11g MS Access, SQL Server 2000/2005

Virtualization Technologies: VMware, Oracle Virtual Machine

Languages: SQL, PLSQL, Java, C, C++, HTML, ASP.NET, C#, UNIX shell scripting.

Web Servers: Apache Tomcat, Web logic

Tools: and Utilities(ORACLE): Import/Export, Data pump, SQL * Loader, SQL Trace, OEM, Explain Plan, STATSPACK, Golden Gate, AWR, ADDM, RMAN, FTP, TKPROF

Other Tools: Microsoft Visio, SQL Developer, OEM, VM ware, putty, TOAD, WINSCP

PROFESSIONAL EXPERIENCE

Confidential, Tempe, AZ

Oracle DBA

Responsibilities:

  • Planning hardware and software requirements for installing Real application cluster (RAC) 11gR2.
  • Installation and Database Administration of multiple Oracle 11gR2 instances, in a development and in multiple BETA-TEST, and Production environments on Oracle Linux and Red Hat servers, and VM’s.
  • Extensive Performance tuning using the AWR and ADDM reports from time to time to analyze and enhance the database performance.
  • Expert-level performance monitoring and tuning using OEM, TOAD DBA SUITE, Spotlight.
  • Implemented RAC installations and configurations, database and tablespace restructure and redesign, partitioning and compression.
  • Configured and implemented best practices, monitoring, performance tuning, backups, security and auditing, patch and software releases on Oracle11g databases.
  • Implemented Database Backup and Recovery strategies and policies.
  • Successfully, planned and implemented Oracle databaseinstallations and upgrade from Oracle 11.2.0.1 databases to Oracle 11.2.0.3 databases on Oracle Linux Servers for the development and production environments.
  • Troubleshoot various Database instance tuning issues and maximize performance.
  • Performed cloning of the databases from the production to test.
  • Architected and implemented GoldenGate replication in Oracle RAC Multimode and Oracle RAC One Node.
  • Worked with Oracle Service Requests, escalations and high severity requests.
  • Regular Monitoring of databases: growth, performance, health of Cluster and archive log destination on Day to Day Basis using OEM and TOAD.
  • Planned and implemented Table partitioning strategies for the Oracle Database in the BRM Application.
  • Database monitoring and creation of reports of grow.
  • Resource monitoring (servers, storage, services) using SiteScope.
  • Working on the Linux Operating System user commands, crontab, and performance check.
  • Closely work with the developers, performance testing engineers and program managers to recommend the best practices and troubleshoot prodigious problems.
  • Troubleshoot Web Logic Server, collected, analyzed, archived and accessed diagnostic data generated by deployed applications with the Web Logic Scripting Tool.
  • 24x7 on-call support for critical database issues to help meet the deadlines.
  • Installation, Configuration and Administration of Oracle BRM Application and Database.
  • Change and Release Management of the IPC, BRM, Siebel Applications.
  • Moreover than Oracle Databases, I was responsible of the SQL Server and Progress Databases Administration (Installation, Maintenance, Performance, User Administration, Storage Management, Monitoring, Upgrade, Backup and Recovery)

Environment: Oracle 11g/10g/, Red Hat Linux, TOAD, ERWIN, RMAN, SQL server, Data Guard, OEM, Grid Control, Golden Gate, Data Guard, STATSPACK, AWR, Explain Plan.

Confidential, Milpitas, CA

Oracle DBA

Responsibilities:

  • Installation, configuration and maintenance of Oracle 10g and 11g databases on AIX.
  • Created Databases on SUSE 10 and SUSE 11 servers.
  • Oracle 10g, 11g (R1 and R2) installation on all major UNIX flavored operating system like RHEL, Oracle Unbreakable Linux (OUL), and WINDOWS server 2000, and 2003.
  • Installed Oracle 10g, 11g RACdatabase on Red Hat Linux.
  • Creating and maintaining the Oracle databases.
  • Installation and maintenance of Oracle 11g Data Guard (Active).
  • Data Guard using physical standby database, Implement log miner, Data guard / Standby both physical and logical standby perform switchover/failover and monitor using Data Guard manager command line and GUI.
  • Upgrading databases to Oracle 11g and 11gR2 from Oracle 10g.
  • Provided backup/recovery, problem diagnosis, performance tuning, data reorganization, and database upgrade.
  • Installation, Configuration and Maintenance of Oracle RDBMS Software.
  • Experience in applying critical patches and patch sets whenever required.
  • Applying patches both Server side and Client side.
  • Coordinate with UNIX administrators for space management on various servers.
  • Setting up new environments (Development, Production etc.).
  • Database Sizing, Table space Management and Rollback Table space Management, Transaction Management and Security Administration
  • Created Users, Groups, Roles, Profiles and assigned users to groups and granted privileges and permissions to appropriate groups.
  • Installed and Implemented Backup & Recovery procedures. Implement Hot, Cold and Logical backup plans.
  • Worked on import/export and SQL- loader.
  • Setup backup and recovery procedures using RMAN.
  • Configured and support Oracle middleware applications and Oracle Web Logic Server for Linux x86-64
  • Experience in Oracle Golden Gate installation, configuration, troubleshooting GG issues.
  • Involved in I/O tuning by moving data files and redo log files to faster disks.
  • Performed Explain Plan analysis for Query Optimization and SQL tuning with OEM.
  • Performed Database and SQL tuning by using various Tools like STATSPACK, AWR, TKPROF, EXPLAINPLAN, and optimizer hints.

Environment: Oracle 11g/10g/, Red Hat Linux, TOAD, ERWIN, RMAN, SQL server, Data Guard, OEM, Grid Control, Golden Gate, Data Guard, STATSPACK, AWR, Explain Plan.

Confidential

Oracle DBA

Responsibilities:

  • Installed and Configured Oracle 10g databases on Linux and also Upgraded Oracle databases from 9i to 10g version.
  • Implemented Oracle Database 10g Two node Real Application Cluster (RAC) using Oracle Cluster-ware and responsible for high availability and load balancing.
  • Provided production support for the 24x7 Oracle database availability.
  • Configured Oracle Data guard for Disaster recovery solutions.
  • Achieved High Availability, Data protection and Maximum performance by maintaining physical standby databases.
  • Restoration and Recovery of databases at the times of occurrence of critical failures.
  • Responsible for installing, upgrading and configuring the Oracle environment by creating databases, storage structures and objects, database backup and recovery, monitoring and optimizing database performance.
  • Implemented Oracle database backup & recovery solutions using RMAN.
  • Supported and Worked on CURAM for Oracle Databases.
  • Extensive use of Oracle Data pump, Exports/Imports utility for moving data among the servers.
  • Performed large batch jobs, and tuning of SQL queries and database systems.
  • Created User accounts, Roles and granting required access permissions and privileges to the database based on the applications they are accessing.
  • Performed Schema as well as Table level Replication using Oracle Streams.
  • Also migrated data from Oracle to SQL SERVER, Sybase, etc., for testing, reporting and analysis requirements.
  • Written Stored Procedures and Triggers for database maintenance and management using PL/SQL; UNIX Shell Scripts for backups.
  • Worked with Data pump to take the logical backups of databases.
  • Used oracle configuration assistants like DBCA(Database Configuration Assistant) for Creating databases, DBUA(Database Upgrade Assistant) for Upgrading databases and NETCA(Network Configuration Assistant) for creating a Client-Server environment using Listener, TNS names etc.,
  • Responsible in configuring and backing up database using RMAN, Hot backups, Cold backups and Logical backups.
  • Implemented advanced features of Oracle 10g such as Automatic Database Diagnostic Monitor (ADDM), Automatic Workload Repository (AWR) for monitoring database performance.
  • Performed administrative maintenance, monitoring on Oracle database systems in a global 24x7 operational environment.
  • Experienced in performing Point in time recovery using RMAN.
  • Estimate growth of database size by detail analysis of the company’s future policies and generating reports for the management to act in advance.

Environment: Oracle 9i, 10g, 11g, SQL, PL/SQL, Oracle Grid Control, Oracle Enterprise Manager Database Control, TOAD, SQL Developer, SQL*Loader, NT, Red Hat Enterprise Linux, ASM.

Confidential

Oracle Database Administrator

Responsibilities:

  • Oracle Database 11gR2 Real Application Clusters (RAC) Installation and Configuration on Linux
  • Upgrading databases from 10.2.0.4 to 10.2.0.5 and Migration of databases between the RHEL AS4 update 8 to SOLARIS 5.10
  • Patching, upgrading the database to 10g, 11g
  • Creating databases as per client Standard
  • Duplicating Database with RMAN from RAC to Single Node
  • Duplicating Database with RMAN from RAC to RAC
  • Data Guard Rebuild
  • 11gR2 DR drill for Data Guard
  • Migrated database from non ASM to ASM
  • Understanding execution plan of top SQL statements by using Explain plan,Auto trace and TKPROF
  • Refreshing Test Databases with EXPDP/IMPDP
  • Handling database management and change requests in form of import and export.
  • Oracle Server and client software installation
  • User administration tasks
  • Data guard setup and best practices
  • Providing connectivity and troubleshooting of connectivity problems
  • Check the performance of the database and tune as and when requires using tools AWR, EXPLAIN Plan.

Environment: Oracle 10g, 11g, RAC, LINUX, RMAN, RAC, Data Guard, ASM, AWR, EXPLAIN PLAN, Auto trace, TKPROF, EXPDP/IMPDP.

Confidential

Software Engineer

Responsibilities:

  • Developed PL/SQL packages, stored procedures, functions, Cursors, triggers.
  • Responsible for installing, upgrading and configuring the Oracle server.
  • Creating databases, objects, roles and privileges.
  • Partitioned large tables to increase the performance.
  • Configured scripts to monitor activity with database.
  • Responsible for optimizing the queries and application tuning.
  • Implement Hot, Cold and Logical backup plans.
  • Designed backup and recovery procedures for OLTP system
  • Use TOAD tool to access the database.
  • Used PL/SQL developer to create PL/SQL Procedures.
  • Refresh/Cloning of Database for development, testing.
  • Monitoring and Management of database users.
  • Testing PL/SQLprocedures against the test cases.
  • Involved in creating use cases and test cases.

Environment: Windows 98/NT / 2000, HP-UX, AIX, Oracle 9i, TOAD, Database Tools/Utilities, Oracle Enterprise Manager.

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