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Oracle Database Administrator Resume

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Indianapolis, IN

PROFESSIONAL SUMMARY:

  • Over 6+ years of IT experience, mainly Oracle Database Administration experience including Oracle11.2.0.4 on Exadata running on X4s, Oracle DB 12c on Oracle Engineered Systems Environment - Exadata platform, Oracle Enterprise Manager Cloud Control 12c & 13c Release 2, 11gR2 RAC on LINUX and Sun Solaris, Installation, Upgrading, Patching, sizing, creating Oracle Databases, and Oracle database Objects, data migrations, Troubleshooting, Performance & Tuning, Backup & Recovery, and Database integrity and Security.
  • Hands on Exadata futures,ODA, Cellcli, DCLI, IORM, Flash Cache, Storage Index, HCC, ASR…TFA, SUNDIAG, ADRCI, ILOM Snapshot collection.
  • Experience in translating business requirements into conceptual, logical, and physical data models.
  • Experience with database supporting applications ( SAP, INET, EMPOWER, CHEMSTORE GeoX, Petrel Studio…).
  • Experience with ETL tools like Pentaho, Talent and Dell Boomi
  • Experience in configuring Oracle network, RMAN, Recovery Catalog, and Performance Tuning of database by optimizing SQL and PL/SQL scripts and instance. Used statspack report, AWR report, ADDM advisors, autotrace and execution plan.
  • Excellent experience in installation, setup and configuration of Oracle 10g and 11g in HP-UX, Sun Solaris, Windows and UNIX/Linux environment.
  • Proficient at performing major Database Release Upgrade (manually as well as using DBUA) along with applying various PSU patches using OPatch for 10g|11g|12c databases.
  • Adept at routine Database Administration tasks including automated installation, creation and replication of databases, management of tablespaces, logs, grants, roles, users, indices.
  • Working experience in database cloning, database backup, recovery procedures and security.
  • Experience in application Support, SQL Loader, Data pump, Data Guard, Fine Grain Auditing (FGA), performing Flashback, transportable tablespaces.
  • Experience in TDE(Transparent Data Encryption) 12C Keystore on Tablespace/Columns Master Encryption.
  • Experience in designing and configuring high-availability systems using DATAGUARD with physical standby. Effectively used DATAGUARD BROKER utility.
  • Experience in Tables Partitioning
  • Hands on experience in installation and maintenance of enterprise manager 12c and Grid Control 11g and addition of targets for database Monitoring/Performance/Diagnostics purposes.
  • Implemented and maintained 12c multitenant architecture using container and pluggable databases and performed conversion of non-container databases to pluggable databases.
  • Experience in Performance Tuning, Tuned various large critical OLTP and OLAP databases using various tools like AWR, STATSPACK, ASH, SQL-TRACE, TKPROF, ADDM, and Explain Plan Utilities.
  • Experience in the management and implementation of database models, data flow diagrams, database schemas, database scripts, to support a robust data management infrastructure.
  • Qualified at writing SHELL Scripts and using CRONTAB for automatic backups.
  • Adept at installation of OEM Database Control, OEM grid control and Deploying Agents.
  • In-depth knowledge and understanding of Oracle Database features such as RMAN for backup and recovery, Materialized Views, Export/Import, Data Pump and Data Guard. Working knowledge of Auditing and Database Security.
  • Experienced in Designing, Installing, Configuring and Maintaining Real Application Cluster (RAC) on Exadata using raw devices, OCFS, Automatic Storage Management (ASM) and SRVCTL utility.
  • Excellent experience with Microsoft Excel, Word and PowerPoint.
  • Hands on ORACLE GOLDEN GATE 12c configuration, deployments and management using Golden Gate commands (GGSCI), experience with replication using Manager, Extract, Pump and Replicate.

TECHNICAL SKILLS:

And Ticketing: Oracle (Oracle Enterprise Manager, SQL*Plus, SQL Loader, DBA Configuration Assistant) Toad, OEM Grid, RMAN, SQL*Loader, Exp/Imp/Data Pump, Statspack/AWR, Top, DBCA, DBUA, ADDM,SERVICENOW,IPcenter, Active Directory, SRVCTL CRSTL.

Operating Systems: UNIX (Solaris, AIX, HP-UX), LINUX, GXP, SDLC

Hardware: Sun Fire 15K, Sun 6320 Storage, Sun Enterprise Servers 890/880/420/450 , Sun StorEdge 6320, Hitachi, EMC, Dell Servers Red Hat Linux 6.5X.6.7

Middleware: BEA Weblogic 10.2.3,ODI

Tuning Tools: TKPROF, EXPLAIN PLAN,AWR/ADDM/ASH

PROFESSIONAL EXPERIENCE:

Confidential, Indianapolis, IN

Oracle Database Administrator

Responsibilities:

  • Support many Exadata databases running Oracle11.2.0.4 on X4s & Standalones Oracle12.1.0.2 running on Linux 6.7 VMs servers and using Cloud Control 12C & 13C for monitoring.
  • Provide Oracle DBA support for applications, including developing data migration scripts, data validation queries, and a maintenance plan for the various development versions of these applications.
  • Provide documentation and support for all aspects of maintenance and development.
  • Work with application development team staff to develop & test database architecture and approve all production schema changes.
  • Constantly refresh from Production to Training, Test and UAT environment.
  • Tune database instances and applications and recommend changes to improve database performance.
  • Migration of data from sql-server to Oracle12C.
  • Installation and configuration of Oracle 12C on Linux 6.7
  • Mange RAC databases, instances, ASM and the clusters with the use of ASMCMD, SRVCTL and CRSCTL
  • Handle all the aspects including new projects, manage existing databases, performance and tuning, contact for vendors, and internal/external customers.
  • Maintain backups.
  • Support databases that interface with ODI and PSmag applications
  • Performed Installation and configuration of Oracle 12.2.0.1 database on HP-UX platform.
  • Successfully performed migrations from Oracle 10g/11g to 11gR2 RAC (Real Application) Database.
  • Responsible for Creating Users, Groups, Roles, Profiles and assigning the users to groups and grant necessary privileges to the relevant groups.
  • Constantly monitor the dynamic performance Views (V$) at peak load of the Databases and checking RAC background processes log files & Trace files to troubleshoot performance
  • Apply patches 11.2.0.3 and 11.2.0.4 DATA GUARD running on a 2 Node RAC
  • Use shell scripts to check the status of databases such as growing table sizes, extent allocation, free space, used space, fragmentation etc.
  • Maintain the data integrity and security using integrity constraints and database triggers.
  • Part of on call of 24X7 support for all the production and development databases.

Confidential, Indianapolis, IN

Oracle Database Administrator

Responsibilities:

  • DBA supported a 4 Node Exadata on X3 & X4s from Development, Test, UAT to Production environments, involving daily configuration, administration, all running on Red Hat Linux 6.5. Database sizes range from 500GB to 7TB (in MANHATTAN,ODS & FIN,OC11,SCI & EDW environments).
  • Table refreshed and schema refreshes using Datapump, expdp and impdp .
  • Database refreshed using expdp, impdp, RMAN Duplicate and cloning .
  • Experienced in cloning the databases using HOT and COLD backups.
  • Used RMAN Duplicate and EXPORT/IMPORT data from 9i to 11.2.0.4.
  • Created a standby database by using RMAN Duplicate in order to reduce the down time for the PROD database during the migration process.
  • Planned Backup/Restoration Strategy, Planning and scheduling Backups, taking Logical Backups (with Export/Import Data pump utilities).
  • Installation of oracle enterprise manager 12c, oracle management repository and deployed agents.
  • Constantly monitor the Golden Gate futures.
  • Managed agents using emctl utility and creating incident rules in enterprise manager 12c
  • Configuring administration groups, and creating template collections in oem 12c.
  • Performed SQL and PL/SQL tuning, oracle contention and monitored production database using automatic workload repository (AWR), automatic database diagnostic monitor (ADDM) and Active Session History (ASH).
  • Worked closely with the Oracle developers for the better performance in Applications, in writing the Packages, Triggers and Indexes on the tables.
  • Used Secure SCP & FTP extensively for the File transfers from machines to remote server.
  • Cloning & duplicating databases using scripts as well as RMAN for test and developments instances.
  • SQL tuning and Database performance tuning has been done based on reports generated by SQL Trace, TKPROF, STATSPACK, Explain Plan, AWR , ADDM and monitor the database performance on daily basis.
  • Responsible for setup and implementation of 2 Node RAC on Linux in 11g R2.
  • Implemented Dataguard, creating both logical and physical standby databases in 10g and 11g RAC environment for production database.
  • Worked closely with Systems Analysts, Systems Engineers/Admins & Application Developers through the SDLC from Development to Production, via Tech-Test in Needs Assessment, Requirements Gathering (Server hardware/OS specifications for Oracle Installs), Database Designing (Physical & Logical) and Implementation, database user creation and database access both at role & table levels, as well as final Project Performance Assessment/Evaluation.
  • Created database Objects, Tablespaces, Schemas as needed.
  • Schema migrations from Development to Production via Tech Test environments.
  • Database refresh from Production to Tech Test as needed.

Tools: Used: Linux, HP-UX, SQL, PLSQL, SQL Developer, Toad, Oracle 10g/11g, RMAN, Oracle RAC, DATAPUMP, DATAGUARD, ASM

Confidential, Indianpolis, IN

Oracle Database Administrator

Responsibilities:

  • Performed Installation and configuration of Oracle 11.2.0.4 database on HP-UX platform.
  • Successfully performed migrations from Oracle 10g/11g to 11gR2 RAC (Real Application) Database.
  • Implemented Logical and Physical Standby Databases for RAC cluster on Sun Solaris platform using Data Guard feature of Oracle 11g R2.
  • Successfully performed data replication using Materialized views and Oracle Streams in Oracle 11gR2.
  • Responsible for Creating Users, Groups, Roles, Profiles and assigning the users to groups and grant necessary privileges to the relevant groups.
  • Supported off-hour on call support for database related issues.
  • Created logical and physical design installed and upgraded databases.
  • Experience in implementation of enterprise databases on enterprise Storage Solutions using Storage area Networks (SAN) and Network attached storage (NAS).
  • Constantly monitor the performance (V$ dynamic performance views at peak load) of the Databases and viewing Alert log files & Trace files.
  • Cloned/Migrated databases using RMAN and traditional Datapump export/import utilities in Oracle 11gR2.
  • Implemented recovery strategies whenever required and successfully recovered databases in case database crash, media/disk failures by using RMAN.
  • Scheduling the Physical backups (hot & cold) in CRON tab using RMAN utility and monitoring the scheduled jobs.
  • Applied patches 11.2.0.3 and 11.2.0.4 DATA GUARD running on a 4 Node RAC
  • Used to run the scripts to check the status of databases such as growing table sizes, extent allocation, free space, used space, fragmentation etc.
  • Performed space management, capacity planning, disaster recovery and overall maintenance of the databases.
  • Used SQL TRACE, TKPROF, EXPLAIN PLAN utilities for optimizing and tuning SQL queries.
  • Maintained the data integrity and security using integrity constraints and database triggers.
  • Provided 24X7 supports for all the production and development databases.

Tools: Used: Oracle 10.2.0.1, HP-UX 11, Sun Solaris 10.0, RAC, Oracle Streams, RMAN, Datapump, SQL TRACE, TKPROF, EXPLAIN PLAN

Confidential, Indianapols, IN

Oracle Junior DBA

Responsibilities:

  • Configure. Implement & Deploy Oracle 11g (11.2.0.4) & Oracle 12C, single instances on
  • The work involved overall Maintenance of Oracle Database, Backup, Recovery and other database related activities.
  • Taking Backups on scheduled time and Monitoring Scheduled Backups.
  • Creating and dropping of users, granting and revoking rights as and when required.
  • Checking of Oracle files for abnormal behaviors.
  • Day to day Performance Monitoring and tuning of database.
  • Diagnose and Troubleshoot Database Problems and failures
  • Involved in the Design (Logical & Physical) of Databases
  • Preparing Backup and Recovery Plan.
  • Involved in the installation of Oracle 11g(11.2.0.4) on both Solaris and LINUX platforms.
  • Creation and maintenance of database.
  • Handling day-to-day activities.
  • Monitoring of database for growth and performance.
  • Defined backup procedures using daily hot backups and weekly cold backup.
  • Storage and space management including table spaces and data files.
  • Creating Databases and all database objects. Database Designing, Designing Tablespaces and Rollback Segments.
  • Management of table space growth, monitoring data files additions, extent growth.
  • Constantly monitor the performance of the Databases and viewing Alert log files & Trace files.
  • Using TKPROF, EXPLAIN PLAN for the Better performance.
  • Ensuring proper online and offline backup. Periodical reading and checking of backups taken.

Tools: Used: Oracle 10.2.0.1, Oracle 10g (9.2.0.8), RMAN, Data pump, SQL TRACE, TKPROF, EXPLAIN PLAN

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