Manager Oracle

Emmanuel Achaleke

Oracle Database Administrator

*********@*****.*** 240-***-****

I have over 5 years of hands-on experience as an Oracle Database Administrator. I possess complete life cycle knowledge including Installation. Worked on Oracle 11g, 10g versions involving database administration, production support, installation, configuration, upgrades, patches, migration, backup and recovery, performance tuning, cloning, space management and security.

SKILLS SUMMARY

UNIX shell scripts for hot backups, SQL*Loader, export and import of database.

Proficient with Database Cloning, Migration, and Patching of Oracle Databases.

Installed Oracle 11g with ASM and OCFS2 File systems.

Planned and implemented high availability solutions such as Real Application Cluster (RAC) in Oracle 11gR2 Grid and 10g on ASM and OCSF2 file systems.

Highly experienced in Oracle 11g, 10g Automatic Storage Management (ASM) required to fulfill the storage needs.

Installed, configured and maintained Physical, Logical, Active standby databases supported by Data guard on Oracle 11g, 10g RAC servers for the purpose of disaster recovery procedures.

Expertise in implementing data refreshes (at database, schema & table level) using RMAN utility and Datapump, conventional Export/Import of Oracle 11g, 10g.

Implemented Hot/Cold physical backups (Incremental and full), cloning, duplicating of databases using RMAN with VERITAS Net Backup & IBM TSM.

Highly Experienced in Hot/Cold Backup and Recovery and Cloning of databases using RMAN.

Experienced in using 10g features like 10g RMAN, Data pump Flash-Back Recovery and ASM.

Knowledge of Database Recovery Techniques and implementation of those recovery techniques to ensure business continuity.

Expertise in maintaining Database Security using auditing.

Experience in Data Migrations.

Performed Upgrade and Migration of Oracle databases from oracle 10g to 11g & 12c.

Applied PSU/CPU Patches, ASM Patches, Grid Infrastructure Patches, Online Patches, one-off Patches and rolling patches.

Experience in doing upgrades including maintenance & monitoring implementation.

Extensive knowledge in UNIX platforms includes HP, SOLARIS, AIX, and LINUX.

Knowledge in configuring ASM (Automatic Storage Management)

Extensive Experience with RMAN Backups, Hot Backups and Logical Backups.

Extensively implemented Datapump, conventional Export/Import (Oracle 11g, 10g) for migration and logical backup of database.

Strong skills in applying security patches (Patch set, Critical Patch Updates (CPU) / Patch Set Updates (PSU), One-off Patch) using “runInstaller” and perl based utility “opatch”.

Highly experienced in implementing Oracle's Transportable Tablespace (TTS) feature using Datapump Export/Import (Oracle 11g, 10g) allowing users to quickly move a user Tablespace across Oracle databases.

Worked on Data transferring with export/import utilities and Data pump.

Highly experienced in performance monitoring/tuning/troubleshooting.

Oracle Database performance-tuning services with EXPLAIN PLAN, TKPROF, STATSPACK, SQL TRACE. Applying patches under UNIX platform.

UNIX Systems Administration - Database and application integration efforts. Heavy UNIX shell scripting, CRON jobs.

TECHNICAL PROFICIENCIES:

Operating Systems

Sun Solaris 2.5, 2.6, 8, 9, 10. AIX 5.1, 5.2, 5.3, 6.1 RHEL 2.1, 3.x, 4.x, 5.x.Linux Enterprise Server 9, 10. Windows 95/98/NT/2000.

RDBMS

Oracle 9i,10g,11g,12c

Languages

SQL, PL/SQL, UNIX Shell Scripting, PERL.

Tools

TKPROF, EXPLAIN PLAN, STATSPACK, AWR, and ADDM.Toad, Putty, NX client, Winscp, Remote Desktop Connection, VNC, Team Viewer, LogMeIn and Cisco VPN Client

Database Utilities

SQL*Plus, Oracle Enterprise Manager, Real Application Cluster, ASM, Transportable Tablespaces, SQL*Loader, RMAN, DataPump, Export, Import

PROFESSIONAL EXPERIENCE

Hartford Insurance Group, Hartford, CT Dec ’13 – Present

Oracle Database Administrator

Supporting multiple databases for production, development, test and staging purposes on Sun Solaris,Linux and Windows environments.

Implemented switchovers on primary and standby databases as a part of planned maintenance activities.

Rebuilding Indexes and gather statistics on tables on different databases on a regular basis to gain database performance using DBMS_STATS package

Successfully upgraded the databases from 11g to non CDB 12c.

Successfully migrated 12c Non CDB databases to pluggable databases.

Created Oracle Wallets and implemented Tablespace level TDE security.

Successfully setup 4 node Primary RAC with 3 node physical standby for new application in 11GR2. Tuning the Databases for optimization using AWR, ASH, ADDM, STATSPACK, Explain Plans and TKPROF, Estimating Table & Index Size.

Utilizing Enterprise manager to monitor alerts, schedule jobs, monitor SQL loads, generate AWR reports

Configured Oracle Data Guard to ensure disaster recovery, high availability and data protection.

Database monitoring and performance tuning using OEM GC, AWR and ADDM, ASH, SQLT, TRCA, SQL Access Advisor, SPM,

Automated the Data Replication process using Materialized Views for reporting databases.

Used Oracle Enterprise Manager (OEM) 11g Grid Control for monitoring multiple database and notification of database alerts, and configured EM agents on multiple database servers.

Implementing Datapump, conventional export/import utility of Oracle 11g, 10g for re-organizing Databases/Schemas/Tables to improve the performance.

Used import/export utilities for cloning/migration of small sized databases and Datapump import/export to move data between 9i and 10g/11g environments.

Applying upgrade patch, maintenance and interim (opatch) patches on all the databases.

Refreshing Dev and Test instances with data from Production on a regular basis.

Developed PL/SQL packages, DML, DDL, Oracle tables, Stored Procedures, functions, cursors, triggers and UNIX shell scripts.

Thorough knowledge in setting up infrastructure for databases in huge datacenters.

Installed Oracle 11g on Linux platform using ASM.

Successful in applying RDBMS patches, security patches for improving the security and functionality of the databases.

Maintenance of Oracle 11gR2 Real Application Cluster (RAC) Database for High Availability, Scalability and Performance by determining the best Cluster architecture, choosing the best hardware configuration for Oracle RAC.

Successful in installation/maintenance of Physical Standby database using Oracle Data Guard for Oracle 11.2.0.3 and Oracle 10.2.0.5 RAC databases.

Implemented proactive monitoring using Tuning Pack, Diagnostics Pack, and STATSPACK, SQL Trace & TKPROF, EXPLAIN PLAN.

Database monitoring/maintenance, replication process and performance tuning are done using OEM (Oracle Enterprise Manager).

Environment: Oracle 11g/12cRAC/9i, VMS, Sun Solaris, Windows Server 2003, Red Hat Linux, TOAD, RMAN, SQL server, OEM.

Waukesha County -Waukesha, WI Oct ’11 – Nov’13

Oracle Production Support Databse Administrator

Successfully installed and configured Oracle 11.1.0.7, Oracle 10.2.0.5 databases on Linux platforms.

Monitored different databases and application servers using Oracle Enterprise Manager (OEM) 10g Grid Control.

Loading data from flat files to database using SQL*Loader, External Tables.

Automated the processes like moving files, managing alert log, efficient backup by developing UNIX scripts

Installed ASM environment and migrated databases from NON-ASM to ASM.

Used TOAD for database management.

Made optimal use of Oracle Support in resolving the SRs.

24 X 7 Production & Development database support and administration.

Extensively used AWR, ADDM and explain plan for periodic performance tuning.

Implementing Datapump, conventional export/import utility of Oracle 11g, 10g for re-organizing Databases/Schemas/Tables to improve the performance.

Used import/export utilities for cloning/migration of small sized databases and Datapump import/export to move data between 9i and 10g/11g environments.

Implemented proactive monitoring using Tuning Pack, Diagnostics Pack, and STATSPACK, SQL Trace & TKPROF, EXPLAIN PLAN.

Database monitoring/maintenance, replication process and performance tuning are done using OEM (Oracle Enterprise Manager).

Experience in implementation of enterprise databases on enterprise Storage Solutions using Storage area Networks (SAN) and Network attached storage (NAS).

Documented the Standard Processes for peers to follow.

Applying upgrade patch, maintenance and interim (opatch) patches on all the databases.

Implemented Flashback technology of the Oracle 11g, 10g along with Recyclebin for a faster recovery of the databases and database objects.

Performed full & incremental backup (cumulative and differential) using RMAN and implemented recovery strategies.

Refreshed/cloned databases using RMAN utility.

Performed Database upgrade from Oracle 10g (10.2.0.5) and to Oracle 11g (11.1.0.7) RAC database.

Successful in applying RDBMS patches, security patches for improving the security and functionality of the databases.

Achieved optimized performance for the databases by rebuilding indexes, on tables and indexes.

Environment: Oracle 11.1.0.7, 10.2.0.5, IBM AIX V6.1, Suse Linux, RAC, ASM, RMAN, AWR, ADDM, SQL* Plus, SQL*Loader, OEM, TOAD 10.0.

Best Buy - Minneapolis, MN Jun ’10 – Oct ’11

Junior Oracle Database Administrator

Worked with Oracle Diagnostics tools such as Explain Plan, SQL Trace, TKPROF Used to analyze timing and execution plan for SQL query to tune the SQL statements

Reorganized data files, identified and eliminated contention factors like I/O, buffers and locks

Allocated the separate rollback segments for the Batch processing jobs in order to speed up processing

Reorganized data files, identification and elimination of contention factors like I/O, buffers and locks

Controlled and monitored user access to the database. Optimized the performance of the database. Tuned SGA data dictionary and set database parameters

Installation and configuration of Oracle database 10g (10.2.0.1) on various OS platforms like Linux, and Windows NT, 2000

Performance tuning of application and database, identification and resolution of contention, defining and implementing Backup Recovery policy, and day-to-day monitoring of the Production database

Worked on the physical and logical designing of the database, which includes the distribution of data- files on different disks.

Defined and implemented database backup and security strategies, tested the backups periodically for consistency and reliability

Identified long-running database queries, refining queries for better performance, and working with end- users to implement changes

Created primary database objects (tables, views, indexes) once application developers have designed an application

Monitored Customer Databases, physically located in U.S and Remote administration of fifteen Production Databases in UNIX environment

Environment:Windows, 10g,11g,SQL, PL/SQL, SQL plus, TOAD

EDUCATION

Bachelors in Sociology and Anthropology, University of BUEA

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