We provide IT Staff Augmentation Services!

Oracle Dba Architect Resume

SUMMARY

  • Over 10 years’ experience as ORACLE RDBMS DBA (8i/9i/10g/11g) on different Operating systems including: AIX, Linux, Red Hat Enterprise Linux, Unix - AIX, HP-UX, Sun Solaris (5.6/5.7/5.8/5.9 , 10) and Windows 2000/NT/XP.
  • Support of Oracle 9i, 10g and 11g, SQL Server, and DB2 Databases on AIX, HPUX, LINUX, and Windows platforms.
  • Responsible for providing database support and performance tuning on both an online-transactional and online-analytical processing environment.
  • Developed rules and standards for the access and maintenance of shared data resources using Oracle.
  • Designed technologically advanced solutions to meet customer's mission, objectives, and requirements.
  • Improved automation, operation stability, and performance by researching new features and functionality with each release.
  • Ensured database configurations comply with published standards.
  • Developed transaction logging and backup/recovery facilities.
  • Participated in defining and implementing data security and logical to physical database mapping and table parameters.
  • Created database schemas and sub-schemas and Work with application development teams to ensure efficient data access in application programs and to review test benchmarks and statistics.
  • Reviewed overall physical database structures for data integrity, performance quality, recoverability, maintenance, and space requirements.
  • Assisted in technical support in the definition and resolution of database problems.
  • Tuned and improved application SQL code, database configuration parameters and system disk configurations.
  • Acted as the primary interface between the Critical Systems team and the middleware/DBA team.
  • Provided complete documentation on developed recommendations and solutions.
  • Provided technical assistance to IT support staff.

PROFESSIONAL SUMMARY

Confidential

Oracle DBA Architect

Responsibilities:

  • Project was about migrating all the from its old legacy health care system to new Exadata Quarter Rack system. This included migrating the Medicare and Medicaid Members, Enrollments, Providers, Contracts, Claims/Encounters, Service History and Authorizations and Utilizations to the new system from the Legacy Systems.
  • As a database architect, I was involved in the end to end system planning, design, mapping and data delivery for the Core and Care Applications from Business as well as IT perspective. Initiated and coordinated the analysis and design requirements for ODS (operational Data Source) including schema and ETL scripts.
  • Worked closely with Oracle BI Suite on the system configuration and reporting compliance requirements to be implemented as part of the Business Intelligence reporting application.
  • Worked with different Business Units (viz. Provider Management, Claims Processing, Payment Processing, Services and Membership etc.) to capture gaps and functional requirements.
  • Worked with Vendors to setup various Environments for project implementation.
  • Coordinated with various Vendors and the EDI teams to Load data to applicable EDI interfaces.
  • Provided input to activities for the ASPEN/ Development teams on issues they may be working on, or to any INT, QAT, UAT and PROD issues that needs addressing from an application perspective as well as from the database side.
  • Responsible for migration of all the 11.2.0.2 (Image Now) & 11.2.0.3(ASPEN/YESNM) databases from Single Instance residing on VBlock to Quarter Rack Exudates for which we have 2 Database Machines - One is high capacity and other is high performance to 11gR2 RAC databases.
  • Performed RMAN duplicates and cloning of databases which were re-created as ORACLE RAC Databases.
  • Responsible for promoting the code to all the higher environments specifically Database Changes and Data Fix Scripts using the DB Build Process. Besides performing the Database Builds, also perform Batch Builds & Online Builds after a successful DB Build.
  • Setting up of 11g Physical Dataguard using OEM12c as well as manual creation of Physical Standby database for High Availability.
  • Resolving all Exadata related technical issues - By opening SR of severity Level1 with Oracle Platinum Support.
  • Tuning of slow performing SQL’s using OEM12c advisors as well as SQLT Tool.
  • Ensured database objects (views, stored procedures, triggers, constraints, etc.) and SQL statements met performance and security objectives.
  • Worked on database migrations from NON-RAC to RAC and pumped data using data pump at schema level exports/table level exports and imports.

Environment: Oracle 10g R2, 11g R1/R2,RAC,DATAGUARD, ASM, Red Hat Enterprise Linux Server release 5.8 (Tikanga), Windows XP/Server 2000, UNIX Shell Scripts and Perl Scripts, Tivoli Manager, VERITAS NET BACKUP,TOAD for Oracle 10, ORACLE SQL DEVELOPER 2.1, Tkprof and L*Net/Net8 and Exadata Quarter Rack.

Confidential

Oracle Data Architect

Responsibilities:

  • Data Warehouse Architect responsible for the design, building, testing, and documentation of an Enterprise Data Warehouse integrating several source system schemas using Oracle Warehouse Builder (OWB 11gR1) and Oracle 11g. Designing and implementing the ETL process using several staging schemas and an Operational Data Store for reporting using Business Objects. Dashboards are being implemented for monitoring the job feeds as well as monitoring data quality. The stage and target star / snowflake schemas are being designed and modeled using ERWin as a data modeling tool
  • Designed and implemented stage, vault, and datamart schemas using Oracle 10g database, Oracle Warehouse Builder11gR1
  • Developed several Oracle database standards documents including schema design, installation+patch, feed system designs, database configurations, as well as installation documents and security..
  • Provided input to activities for the teams on issues they may be working on, or to any production issue that needs addressing.
  • Reviewed all tables in the eprd and mprd database where the clob columns are used. For the clob columns that are not compressed, review and make recommendations on addition tables/clobs that would benefit from compression. Made sure to review the usage patterns for all the tables where clob columns are used. Researched on how the table and its clob column are used by the application and if the clob compression is appropriate. Reviewing the top sql reports was a good starting point for this activity.
  • Reviewed Oracle's Exadata techology as it relates to Hybred-Columnar Compression (HCC) and its applicability to our current database schema design. If we were to migrate to an Exadata system, provided recommendations to the tables that would benefit from HCC, and if and how the HCC would work with standard clob compression. Reviewing the top sql reports was a good starting point for this activity.
  • Reviewed the eprd and mprd databases for space shrinking/coalescing opportunities. The application team is implementing more data purging and data archiving activities, which is creating more storage maintenance work. We may need to be more active in maintaining free space storage. Provided a review of the current shrinking opportunities and those tables that might need it in the future base on current sql work loads. Reviewing the top sql reports was a good starting point for this activity.
  • Created sql tuning sets to provide aggregate overview of sql performance during peek and off-hours windows for the GD3 database. Created a set of two tuning sets. One for daily work starting from 6am to 6pm. And one for nightly work from 6pm to 6am and had this integration for (eint/mint) and production (eprd/mprd) databases. Currently there are a few tuning sets already created, pmr ts and daily sts - Dropped these and created new ones in the integration and production environments.
  • Reviewed the impact of changing the SDU size at the SQLNet layer for the production eprd and mprd database to a 32k value. Researched the current work load on the eprd and mprd database and provide a listing of the most likely sql statement that will benefit from that change. Additionally, also provided an estimate of the possible improvements for those sql statements.

Environment: Oracle 11g R1/R2, MySql 5.5 Enterprise 5.5, Java, Ruby on Rails, RAC One Node, Exadata, Red Hat Enterprise Linux 5.4, OEL 5.8, 6.2, Windows XP/Server 2000, TOAD for Oracle 10, ORACLE SQL DEVELOPER 2.1, Tkprof and SQL*Net/Net8, Dell R910 Servers, SunFire x4150 DB Servers, F5 Big IPS LTM (Local Traffic Managers) used for Load

Confidential

Sr Oracle DBA

Responsibilities:

  • Installed, configured, upgraded, migrated and patched Oracle 9i/10gR2/11g databases in heterogeneous environment.
  • Extensive worked on the production piece of Oracle 10gR2/11g environment including RAC, PL/SQL, OEM Grid control, Data Guard, ASM, RMAN, Partitioning, database tuning and troubleshooting.
  • Planned implemented and maintained Disaster Recovery methodology for all production databases and also suggested best practices to ensure High Availability at all times.
  • Technical Team Lead for other Database Administrators which also included Sybase and Sql Server DBA groups for Lending Mortgage DBA Group.
  • Worked extensively with technical architects and developers to ensure data model met the platform's requirements from the business and technical perspectives.
  • Defined business object/database table mappings and structures, fail-over strategies and distributed data strategies.
  • Ensured database objects (views, stored procedures, triggers, constraints, etc.) and SQL statements met performance and security objectives.
  • Ensured database migration scripts and programs meet data integrity, performance and security objectives by testing them in DEV, UAT & Pre Production environments.
  • Maintained and published the database installation/operation guide and other pertinent documentation for the technical and application teams.
  • Developed, reviewed and enforced database standards as laid out by Oracle.
  • Wrote Perl scripts and PL/SQL scripts to fetch, parse and load data from the external sources. Supported databases were on Linux and Solaris.
  • Planned, implement and tested company’s disaster recovery strategy using RMAN.
  • Worked on Oracle Virtualization using Oracle VM for x86 machines.

Environment: Oracle 10g R2, 11g R1,RAC,DATAGUARD, ASM, Red Hat Enterprise Linux, Windows XP/Server 2000, UNIX Shell Scripts and Perl Scripts, Tivoli Manager, VERITAS NET BACKUP,TOAD for Oracle 10, ORACLE SQL DEVELOPER 2.1, Tkprof and SQL*Net/Net8.

Hire Now