Sign in

Oracle Data

Reisterstown, MD
December 24, 2018

Contact this candidate



Oracle Database Administrator


Oracle Database Administrator TIAA- CREF - Charlotte, NC

Feb 2015 – Present

Installation and configuration of 10g,11g,12c in UNIX/LINUX (RHEL) and Windows server 2008, 2012.

Installation and configuration of 12c Container Databases on standalone servers and cluster on Windows and Unix platforms.

Upgraded multiple Standalone and RAC databases and grid infrastructure from 11gR2 to 12cR1.

Upgrading Golden Gate from v11 to 12c and Expertise on Oracle Golden Gate and be able to configure Golden Gate

Used Log dump utility, Defgen utility in Golden Gate environment and Installed Goldengate in dev, test, prod environment

Worked New Features on 12c databases such as recovering tables, masking the fields, using advanced optimization parameters for good performance of 12c Databases.

Experience in troubleshooting RAC databases and engaging with application team for gaining performance enhancements for application in clustered environment.

Applied PSU on standalone TEST environment using OPatch and same PSU (Grid and RDBMS Patching) on production cluster using OPatch Auto.

Supported in Performing Golden Gate configuration, administration, installation, also configuring pumps and managing trail files by purging old extract files and log files.

Troubleshooting Golden Gate using GGSERR.LOG and logdump utility.

Replication Using Golden Gate for multiple extracts and replication and mapping, Great understanding and usage of advanced parameters in Golden Gate

Responsible for Installation and upgrading of Golden Gate to Golden Gate (v12)

Implemented Physical Standby Databases on 2-node 11gR2 Real Application Cluster and automated scripts to delete archive logs that already applied to standby.

Duplicating Tablespaces and Databases from Production server to Test server as per customer requirement.

Involved in data center migrating large size database in multiple platform.

Expertise in Active Data Guard, Snapshot using Data guard Broker (DGMGRL) and RMAN.

Generated AWR (Statspack), ADDM, Explain Plan, TKPROF, SQLTRACE, ORADEBUG reports for Performance tuning and used new tools of 12c for security purpose.

Hand on experience in cloning the non-multitenant container database to pluggable database in 12c using the PDB Metadata clone, PDB Remote Clone and PDB Snapshot cloning feature.

Have implemented two type of standby databases supported by Data Guard, logical standby and physical standby databases in 11gR2 on two node RAC

Having hands on experience in Hot/Cold Backup, Recovery and Cloning of databases using RMAN with VERITAS Net Backup and Comm vault.

Implemented Active Data guard, creating both Logical and Physical Standby databases in 10g, 11g RAC & 12C environment for the Production databases.

Configured and managed Data Guard extensively for Production databases of sizes ranging from 50GB to 5TB.

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.

Constantly monitor the performance (V$ dynamic performance views at peak load) of the Databases and viewing Alert log files & Trace files.

Experiencing in Installing OEM 12c Cloud Control and upgrading the 11g management agents to 12c agents.

Cloning/duplicate of database with RMAN and user-managed (hot/cold) backups.

Migration of databases to 12C from Oracle 10g&11g.

Implemented and maintained Oracle 11g Data Guard/standby databases for fail-over purposes. Implemented Oracle TDE to provide transparent encryption of stored data to support submission efforts with release of Oracle 11g R2.

Also worked on Network data encryption to improve the security and implemented SSL wallet to secure the connections.

Database Services creation for distributing the applications across multiple nodes, extensively used all command line utilities SRVCTL, CRSCTL, ADR, ASMCMD,

Redefinition of tables using DBMS_REDEFINITION, partitioning the tables in the production, re-defining the columns data types, and moving the LOBS to different tablespace

Scheduled RMAN backups, purge jobs, Maintenance Jobs using DBMS_JOBS, DBMS_SCHEDULER, Crontab and $UNIVERSE.

Designed and implemented different backup strategies like Cold, Hot, MAN with Flash Recovery Area and Logical Backups EXPDP/IMPDP.

Handled Chained Rows and Row migration and solved the database performance issues.

Implement and enforce security for all the Oracle Databases; the three basic security tasks are authentication (Setting up user accounts to control logins to the database), authorization (setting permissions on various parts of the database), and auditing (tracking who did what, with the database).

Perform database re-organizations as required to assist performance and ensure maximum uptime of the database, implement SQL access and tuning advisors’ recommendations.

Outline standards in place to ensure that all application design and code is produced with proper integrity, security and performance.

Evaluates releases of Oracle and its tools, and third-party products to ensure that the site is running the products that are most appropriate.

Experienced with ASM, adding, deleting disks to the disk group.

Supported development teams for all the database related issues and handled the critical issues like network failures and ASM DISK group errors and node failures in the RAC cluster.

Generated Statspack/AWR reports using OEM 12C from Oracle 11g database and analyzed the reports for Oracle wait events, time consuming SQL queries, tablespace growth, database growth.

Used Explain Plan, Oracle hints and creation of new indexes to improve the performance of SQL statements. Involved in SQL Query tuning and provided tuning recommendations to Application jobs, time/CPU consuming queries

Oracle Database Administrator Honor Health - Phoenix, AZ

Sept 2013 – Feb 2015

Cloned/Migrated databases using RMAN and traditional Data pump export/import utilities in Oracle 10gR2.

Performed disk and disk group management in ASM while installing 11gR2 RAC.

Monitoring Health checks of OCR, VOTING DISKS and troubleshooting issues in RAC environment (11GR2).

Ensured that oracle database systems operate securely and efficiently.

Managing databases from planning and testing stages through implementation and support.

Performed day to day activities like resolving Tickets for multiple environments, provided Development Support, coordination with development for Application Tuning.

Worked extensively on monitoring grid control database, configuration of error notifications, installing listeners, and adding them to the grid control.

Performed conversion Non RAC single instance to Real Application Cluster (RAC) database instances.

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.

Responsible for Creating Users, Groups, Roles, Profiles and assigning the users to groups and grant necessary privileges to the relevant groups.

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 24X7support for all the production and development databases.

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 Data pump Export/Import (Oracle 11g, 12c) allowing users to quickly move a user Tablespace across Oracle databases.

Expertise in implementing data refreshes (at database, schema & table level) using RMAN utility and Data pump, conventional Export/Import of Oracle 11g, 12c.

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

Successfully performed migrations from Oracle 10g to 11gR2 RAC (Real Application) Database.

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.

Constantly monitor the performance (V$ dynamic performance views at peak load) of the Databases and viewing Alert log files & Trace files.

Used to run 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.

Created Physical Standby databases using RMAN with zero downtime, performed Failover and Switchover using Data Guard Broker and manually as and when required.

Worked extensively with Physical Standby database, troubleshooting, switchover and switchback with Physical standby setup.

Successfully performed data replication using Materialized views and Oracle Streams in Oracle 10gR2.

Experienced in Performance Tuning using EXPLAIN PLAN, TKPROF, and STATSPACK.

Expert in implementing High Availability solutions with Oracle 11g RAC, Oracle Data Guard and replication using Streams.

Proficient in database concepts with rich experience in database design, development and management.

Excellent knowledge of Oracle architecture, Golden Gate architecture, SQL Performance tuning, SQLT and eager to explore any unknowns.

Good working knowledge of troubleshooting Infrastructure issues related to Oracle database server such as memory, CPU, I/O, Disk etc.

Working knowledge of technologies such as Oracle, Oracle Real Application Cluster, Oracle Golden Gate, and Oracle Http Servers.

Hands-on experience working as Production DBA, working knowledge on SLA metrics and Remedy system and worked with Oracle Support.

Installed and configured 2, 4, 6 nodes server-side load balancing RAC (Real Application Clusters) databases on HP UNIX and Linux with ASM (Automatic Storage Management) and Data Guard.

Experience in Upgrade from oracle 10g to 11g and Migration of oracle database from red hat Linux, Window platform to Linux on development, integration and production environment using Oracle Data Migration Assistant.

Highly experienced in Oracle 11g, 10gAutomatic Storage Management (ASM).

High ability to analyze and understand the AWR reports and can fine tune the databases for maximum performance.

Hand on experience in cloning the non-multitenant container database to pluggable database in 12c using the PDB Metadata clone, PDB Remote Clone and PDB Snapshot cloning feature.

Performed database administration, production support, installation, configuration, upgrades, patches, migration, backup and recovery, performance tuning, and cloning on the above said versions.

Extensively managed users, privileges, profiles, schemas using Oracle Enterprise Manager (OEM).

Configured Oracle Enterprise Manager (OEM) Grid Control (in Oracle 11g, 10g) for the purpose of monitoring multiple databases and application servers.

Implemented physical standby database for maximum availability using Oracle Data Guard 11g with Oracle Enterprise Manager (OEM) 12C cloud Control.

Implementing 10g Data guard with one physical database.

Experience in configuration and administration of Data Guard (Physical/Logical standby Databases).

Setup RMAN solutions for all Oracle Databases -- created rman repository, provided best practices, optimizations and data guard and cloning techniques -- restore and recovery.

Implemented and maintained Oracle 11g Data Guard/standby databases for switch-over and fail-over purpose.

Experience in Implementation of High Availability solutions with Oracle 10g &11g RAC, Physical Standby Databases (Data Guard)

Experience with supporting the Production Database with complete lifecycle including Installations, Upgrade, Patching, Cloning, Backup/Recovery, High Availability including Oracle Real Application Cluster (RAC) and Data Guard. Expert in RMAN backups including full, incremental and cumulative.

Excellent knowledge in Flashback Recovery, Hot/Cold Backup and Cloning/Refresh of databases using RMAN. Experience in applying patches/ patch sets to the databases.

Knowledge in configuring ASM (Automatic Storage Management)

Proficient in complete, incomplete recovery of the database, Point in Time Recovery (PITR), and Tablespace Point in Time Recovery (TSPITR) using RMAN utility.

Expertise in implementing partitioning methodologies (Range partitioning, List partitioning, Hash partitioning, Composite partitioning) on tables and indexes for high performance.

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

Expertise in maintaining Database Security using auditing.

Bachelor Degree in Electrical Engineering: College of Technology (University of Beau)

Associate Degree in Computer Science: University Institute (ESG- ISTA)

Contact this candidate