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Oracle DBA

Location:
Cincinnati, OH
Posted:
September 07, 2019

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Resume:

Earnest Ndifor

Phone 513-***-****

adaac4@r.postjobfree.com

SUMMARY

Over 7 years of IT experience, mainly Oracle Database Administration experience including 9i,10g 11g & 12.1.0.2 on Exadata running on X6s, 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.

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.

Working experience in database cloning, database backup, recovery procedures

Experience in translating business requirements into conceptual, logical, and physical data models.

Experience with ETL tools Talent and Looker

Experience with GoldenGate

Experience in configuring Oracle network, RMAN, Recovery Catalog, and Performance Tuning of database by optimizing SQL and PL/SQL codes and instance. Used statspack report, AWR report, ADDM, explain plan and Tuning advisor.

Excellent experience in installation, setup and configuration of Oracle 10g and 11g in and12c HP-UX, Sun Solaris, Windows and UNIX/Linux environment.

Experience in application Support, SQL Loader, Data pump, Data Guard, Fine Grain Auditing (FGA), performing Flashback, transportable tablespaces.

Worked on TDE(Transparent Data Encryption) 12C Keystore on Tablespace/Columns

Master Encription

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 GridControl 11g and addition of targets for database Monitoring/Performance/Diagnostics purposes.

Installation, upgrade and patching on Oracle 11g/12C databases on Linux platforms.

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.

Adept at installation of OEM Database Control, OEM grid control and Deploying Agents.

Good 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., OCFS, Automatic Storage Management (ASM) and SRVCTL utility.

SKILLS

Hardware: Solaris 8, 10, HP-Unix 11, AIX,Win-NT 4.0, Win 2003 Server, Win 2008 Server, Win 2000

Pofessional, Sun Sparc/Ultra/Enterprise, Linux Red Hat & Oracle Enterprise Linux, AIX, HPUX, DB Software & Ticketting: Oracle9i/10g/11g/12c, Erwin, Data Modeling SQL, PL/SQL, ODI, SQL*LOADER, Oracle OS Watcher, External tables, Exadata, Oracle Enterprise Manager, Exp/Imp/Datapump, RDBMS Statspack/AWR, Top, DBCA, DBUA, ADDM, SERVICENOW, Active Directory, SRVCTL,CRSTL., SQL*Plus, SQL Loader, Toad & RMAN

Operating Systems: UNIX (Solaris, HP-UX, IBM-AIX), Linux (Suse, Redhat, OEL), and MS Windows (NT/95/98/2000/2003/XP).

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

Other Tools and Applications: Jde, Provia, Si, Gis, Webfocus, Vertex, Ifs, Red Prairie, TMS

VB5.0, HTML,, PVCS Tracker v7.0, Visual SourceSafe, JDE, Provia, webfocus, GIS, Evavi McKesson (Performance Manager,Care Manager,Lab,Meds Manager,Physician Portal Horizon Outreach, SAP, INET, ISOTRAIN, EDI, ODI, GPRT,T RACKWISE,LIMS,EMPOWER, 'Model-N, BODS, and Chemstore

Proficiency in SQL and PL/SQL language

Experience with Oracle RAC technology on Linux and / or Oracle replication

Experience with Unix shell scripts and other programming languages

Experience with Golden Gate, RAC, CRS, and ASM

Experience with 24/7 Production Enterprise support a plus

Familiarity with AWS Cloud Technologies

Oracle Transparent Encryption (TDE).

Setup keystore location in the sqlnet.ora file

Configure software keystore TDE master encryption in 12CR1

Perform column encryption in a table

Create an external store for keystore password.

PROFESSIONAL EXPERIENCE

UPS Louisville. KY Dec 2018 - Present

Oracle Database Administrator

Developed and administered many databases running Oracle12.2.0.1 on Exadata environment, running on X6s with the use of Cloud Control 12C & 13C in monitoring.

Programed DBA 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.

Manage movement of data between Test. UAT and Production.

Tune database instances and applications and recommend changes to improve database performance.

Migration of data from pl/sql-server to Oracle12C.

Installation and configuration of Oracle 12C.

Manage RAC databases, instances, ASM and the clusters with the use of ASMCMD, SRVCTL and CRSCTL

Handle all the aspects ncluding new projects; manage existing databases, performance and tuning, contact for vendors, and internal/external customers.

Maintain backups.

Support databases that interface with ODI.

Upgraded of Exadata from X2 &X3 to X6s

Implemented Oracle Advanced Security Transparent Data Encryption(TDE) for both 11g Wallet and 12C Keystore for tablespaces, tablespaces & columns

Upgraded Exadata RAC cluster from Oracle11g (11.2.0.4) to Oracle12c (12.2.0.1)

Applied Opatch 27626925 to fix optimizer_adaptive issues after upgrade to 12C

Installed and configured Grid Control 13C

Oracle Database auditing

Oracle Transparent Encryption (TDE).

Encryption Wallet configuration

Configure RMAN ENCRYPTION_ALGORITHMS

I have onfigured unidirectional and Bi-directional GoldenGate for high availability, real time replication of data on a heterogenous platforms

Create GoldenGate Home and directory, installed GoldenGate software on source and target servers

Confirgure the parameters needed for consolidation and replication of data.

Enabled supplemental loggings on source server to ensure that all changes are captured

Configure the Manager parameter and define the listening port

Configure a Global parameter file and specify the name of manager process, default checkpoint and name of the schema.

Create Extract process parameter file and input user password, extrail file, table on the source system

Create DataPump parameter file

Oracle Transparent Encryption (TDE).

Setup keystore location in the sqlnet.ora file

Configure software keystore TDE master encryption in 12CR1

Perform column encryption in a table

Create an external store for keystore password.

Abbott Laboratories, Chicago, IL Dec 2017 – Dec 2018

Oracle Database Administrator

Supported and administered many Exadata databases running Oracle12.1.0.2 on X4s, Linux 6.9 & Standalones running Oracle11g, 2.0.4 running on Linux 6.7 VMs servers and using Cloud Control 12C for monitoring.

Programed Oracle DBA applications, including developing data migration scripts, data validation queries, and a maintenance plan for the various development versions of these applications.

Worked 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.

Monitored Oracle databases using OEM and TOAD

Migration of data from sql-server to Oracle12C.

Upgraded Oracle 11.2.0.4 to 12.1.0.2 on Exadata, running on X6s, Linux 6.9

Managed RAC databases, instances, ASM and the clusters with the use of ASMCMD, SRVCTL and CRSCTL

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).

Handled all the aspects including new projects, manage existing databases, performance and tuning, contact for vendors, and internal/external customers.

Maintained backups.

Supported databases that interface with ODI and SCI applications

Successfully performed migrations from Oracle 9i 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 monitored the dynamic performance Views (V$) at peak load of the Databases and checking RAC background processes log files & Trace files to troubleshoot performance

Applied PSU to all the Oracle databases and troubleshooting using Oracle database manager

Used shell scripts to check the status of databases such as growing table sizes, extent allocation, free space, used space, fragmentation etc.

Maintained the data integrity and security using integrity constraints and database triggers.

Part of on call of 24X7 supports for all the production and development databases.

SETUP PRIMARY and STANDBY DATABASES

Create pfile for Standby database and copy it to target destination

Create Listeners and Tnsnames files for both primary and standby

Configure force logging on the primary

Duplicate standby using back files as well as active database

Enable archive log on the primary database

Perform Switch oever operation during maintenance

Network configuration on both primary and stanby machines

Recover archive log gaps

Configure DGMGR

Admistered dataguard using SQLPLUS and DGMGR commands

Salesforce, Indianapolis, IN Apr 2016 – Dec 2017

Oracle Database Administrator

DBA 8 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).

Both tables and schemas refresh 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.

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.

PL/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.

I have onfigured unidirectional and Bi-directional GoldenGate for high availability, real time replication of data on a heterogenous platforms

Create GoldenGate Home and directory, installed GoldenGate software on source and target servers

Confirgure the parameters needed for consolidation and replication of data.

Enabled supplemental loggings on source server to ensure that all changes are captured

Configure the Manager parameter and define the listening port

Configure a Global parameter file and specify the name of manager process, default checkpoint and name of the schema.

Create Extract process parameter file and input user password, extrail file, table on the source system

Create DataPump parameter file

Oracle Transparent Encryption (TDE).

Setup keystore location in the sqlnet.ora file

Configure software keystore TDE master encryption in 12CR1

Perform column encryption in a table

Create an external store for keystore password.

HP Pelzer Troy, MI Jun 2015 – Apr 2016

Oracle Database Administrator

Successfully performed migrations from Oracle 9i/10g to 11gR2 RAC running on Exadata Xs 4

Implemented Logical and Physical Standby Databases for RAC cluster on Sun Solaris platform using Data Guard feature of Oracle 11g R2.

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.

Setup physical Active dataguard on Linux 6.5, running Oracle11.2.0.4.

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.

Performed Installation and configuration of Oracle 11.2.0.4 database on HP-UX platform.

Used PL/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.

SETUP PRIMARY and STANDBY DATABASES

Create pfile for Standby database and copy it to target destination

Create Listeners and Tnsnames files for both primary and standby

Configure force logging on the primary

Duplicate standby using back files as well as active database

Enable archive log on the primary database

Perform Switch oever operation during maintenance

Network configuration on both primary and stanby machines

Recover archive log gaps

Configure DGMGR

Admistered dataguard using SQLPLUS and DGMGR commands

BAE Systems Customer Solutions, Arlington VA Mar 2012 – Jun 2015

Oracle Database Administrator

Configured. Implemented & Deployed 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 databases 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.

SETUP PRIMARY and STANDBY DATABASES

Create pfile for Standby database and copy it to target destination

Create Listeners and Tnsnames files for both primary and standby

Configure force logging on the primary

Duplicate standby using back files as well as active database

Enable archive log on the primary database

Perform Switch oever operation during maintenance

Network configuration on both primary and stanby machines

Recover archive log gaps

Configure DGMGR

Admistered dataguard using SQLPLUS and DGMGR commands

EDUCATION & TRAINING

Associate of Applied Science in Technology from ITT Technical Institute, Norwood, OHIO

Oracle DBA Training, OLNC Training March 2011

BSC in Land & Surveying from Advance School of Public Works, Yaounde, Cameroon.



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