PROFESSIONAL SUMMARY:

• Over 7 yearsof programming experience as anOracle PL/SQLDeveloper in Analysis, Design and Implementation of Business Applications using the Oracle Relational Database Management System (RDBMS).
• Involved in all phases of theSDLC (Software Development Life Cycle)from analysis, design, development, testing, implementation and maintenance with timely delivery against aggressive deadlines.
• Experience withData flow diagrams, Data dictionary, Database normalization theory techniques, Entity relation modelinganddesign techniques.
• Expertise in Client - Server application development using Oracle11g/10g/9i/8i, PL/SQL, SQL *PLUS, TOADandSQL*LOADER.
• Effectively made use ofTable Functions, Indexes, Table Partitioning, Collections, Analytical functions, Materialized Views, Query Re-WriteandTransportable table spaces.
• Strong experience inData warehouse concepts, ETL.
• Good knowledge on logical and physicalData Modelingusingnormalizing Techniques.
• CreatedTables, Views, Constraints, Index(B Tree, Bitmap and Function Based).
• Developed Complex database objects likeStored Procedures, Functions, Packages and Triggers using SQL and PL/SQL.
• Developedmaterialized viewsfor data replication in distributed environments.
• Excellent technical and analytical skills with clear understanding of design goals of ER modeling forOLTPand dimension modeling forOLAP.
• Experience inOracle supplied packages, Dynamic SQL, RecordsandPL/SQL Tables.
• Loaded Data into Oracle Tables usingSQL Loader.
• Partitioned large Tables usingrange partition technique.
• Experience with Oracle Supplied Packages such asDBMS SQL, DBMS JOBandUTL FILE.
• CreatedPackagesandProceduresto automatically drop table indexes and create indexes for the tables.
• Worked extensively onRef Cursor, External TablesandCollections.
• Expertise inDynamic SQL, CollectionsandException handling.
• Experience in SQLperformance tuningusing Cost-Based Optimization (CBO).
• Good knowledge of key Oracle performance related features such asQuery Optimizer, Execution PlansandIndexes.
• Experience withPerformance Tuningfor Oracle RDBMS usingExplain PlanandHINTS.
• Experience inETLtechniques and Analysis and Reporting including hands on experience with the Reporting tools such asCognos.
• CreatedShell Scriptsfor invoking SQL scripts and scheduled them using crontab.
• Excellent communication, interpersonal, analytical skills and strong ability to perform as part of a team.

TECHNICAL SKILLS:

Databases: Oracle 7.x/8i/9i/10g/11g (SQL, PL/SQL, Stored Procedures, Triggers), MS SQL SERVER 2000/2005/2008, DB2/UDB, Teradata, SAP Tables and MS Access.

ETL Tools: Informatica (PowerCenter 5.1/6.2/7.1/8.6.1/9.1.0, Power Mart 5.1, Power Connect/Power Exchange for SAP R/3, Main Frame and Oracle Change Data Capture (CDC), AB Initio 1.8 and SQL*Loader.

Reporting Tools: Business ObjectsDeveloper Suite 5.1/BO XIR2, Cognos Suite, Cognos Report Net 1.1MR2, Crystal Reports, Oracle Reports 2.5

Operating Systems: UNIX (Sun Solaris, LINUX, HP UNIX, AIX), Windows NT/98/95/2000 & Windows XP.

Data Modelling: Erwin 3.5.2,4.0

Languages / Utilities: SQL, PL/SQL, Unix shell scripts,Java, XML, C and Cobol.

Other Tools: AutoSys, Control-M, PVCS, WIN CVS, Informatica Data Quality, B2B Data Transformation, Informatica Power Exchange Informatica 9.1.0 Developer/Analyst, TPump, Fast Load, BTEQ

Qualifications: Bachelor’s in Computer Science

PROFESSIONAL EXPERIENCE:

Confidential, San Francisco, CA

Oracle PL/SQL Developer

Responsibilities:

• Coordinated with the front end design team to provide them with the necessary stored procedures and packages and the necessary insight into the data.
• Worked onSQL*Loaderto load data from flat files obtained from various facilities every day.
• Created and modified severalUNIX shell Scriptsaccording to the changing needs of the project and client requirements.
• Wrote Unix Shell Scripts to process the files on daily basis like renaming the file, extracting date from the file, unzipping the file and remove the junk characters from the file before loading them into the base tables.
• Involved in the continuous enhancements and fixing of production problems.
• Generated server side PL/SQL scripts for data manipulation and validation and materialized views for remote instances.
• DevelopedPL/SQL triggersandmaster tablesfor automatic creation of primary keys.
• Created PL/SQLstored procedures, functions and packagesfor moving the data from staging area to data mart.
• Created scripts to createnew tables, views, queriesfor new enhancement in the application using TOAD.
• Createdindexes on the tables for faster retrieval of the data to enhance database performance.
• Involved in data loading usingPL/SQLandSQL*Loadercalling UNIX scripts to download and manipulate files.
• PerformedSQL and PL/SQL tuningand Application tuning using various tools likeEXPLAIN PLAN, SQL*TRACE, TKPROFandAUTOTRACE.
• Extensively involved in usinghints to direct the optimizerto choose an optimumquery execution plan.
• UsedBulk Collectionsforbetter performanceand easy retrieval of data, by reducing context switching between SQL and PL/SQL engines.
• CreatedPL/SQL scriptsto extract the data from the operational database into simple flat text files usingUTL FILEpackage.
• Creation of database objects liketables, views, materialized views, procedures and packagesusing oracle tools likeToad, PL/SQL DeveloperandSQL* plus.
• Partitionedthe fact tables andmaterialized viewsto enhance the performance.
• Extensively usedbulk collectionin PL/SQL objects for improving the performing.
• Createdrecords, tables, collections(nested tables and arrays) for improving Query performance by reducingcontext switching.
• UsedPragma Autonomous Transactionto avoid mutating problem in database trigger.
• Extensively used the advanced features of PL/SQL likeRecords, Tables, Object typesand Dynamic SQL.
• Handled errors usingException Handlingextensively for the ease of debugging and displaying the error messages in the application.

Environment: Oracle 11g, SQL * Plus, TOAD, SQL*Loader, SQL Developer, Shell Scripts, UNIX, Windows XP.

Confidential, Monterey Park, CA

Oracle PL/SQL Developer

Responsibilities:

• Developed AdvancePL/SQL packages, procedures, triggers, functions, Indexesand Collectionsto implement business logic usingSQL Navigator. Generated server side PL/SQL scriptsfordata manipulationand validation and materialized views for remote instances.
• Created management analysis reporting usingParallel Queries, Java stored procedure, HTP PackageandWEB.SHOW DOCUMENT. Participated in change and code reviews to understand the testing needs of the change components. Worked on troubleshooting defects in timely manner.
• Involved in creatingUNIX shell Scripting. Defragmentation of tables, partitioning, compressing and indexes for improved performance and efficiency. Involved in table redesigning with implementation of Partitions Table and Partition Indexes to makeDatabaseFaster and easier to maintain.
• Experience inDatabase Application Development, Query Optimization, Performance TuningandDBAsolutions and implementation experience incomplete System Development Life Cycle.
• UsedSQL Server SSIS toolto build high performance data integration solutions including extraction, transformationandload packagesfordata ware housing.Extracted data from theXMLfile and loaded it into thedatabase.
• Designed and developedOracle forms & reportsgenerating up to 60 reports.
• Performed modifications on existingformas per change request and maintained it.
• UsedCrystal Reportsto track logins, mouse overs, click-through, session durations and demographical comparisons with SQL database of customer information.
• Worked onSQL*Loaderto load data from flat files obtained from various facilities every day. Used standard packages likeUTL FILE, DMBS SQL, and PL/SQLCollections and usedBULK Binding involved in writing database procedures, functions and packages for Front End Module.
• Used principles of Normalization to improve the performance. Involved inETLcode using PL/SQLin order to meet requirements for Extract, transformation, cleansing and loading of data from source to targetdata structures.
• Involved in the continuous enhancements and fixing of production problems.Designed, implementedandtunedinterfaces and batch jobs usingPL/SQL. Involved in data replication and high availability design scenarios withOracle Streams. DevelopedUNIX Shell scriptsto automate repetitivedatabase processes.

Environment: VB 6, JAVA, Oracle 10g/11g, PL/SQL, SQL*LOADER, Oracle Streams 10g (Replication), SQL PLUS, HTML, SQL Server SSIS, TOAD, XML, HP-UNIX shell scripting.

Confidential, San Antonio, TX

Oracle PL/SQL Developer

Responsibilities:

• Used OracleJDeveloperto support JA Built complex queries using SQL and wrote stored procedures using PL/SQL in Various API’s like Java, .Net and Hierarchical databases like Oracle and Access.
• Developed and modified a number ofFormsand for various modules. Also responsible for following up bugs reported by various users and suggesting possible patches to be applied.
• Wrote Shell Scripts forData loadingandDDL Scripts.
• Worked in Production Support Environment as well as QA/TEST environments for projects, work orders, maintenance requests, bug fixes, enhancements, data changes, etc.
• Used OracleJDeveloperto support JAVA, JSP and HTML codes used in modules.
• Wrote conversion scripts usingSQL, PL/SQL, stored procedures, functionsandpackages to migrate data from SQL server database to Oracle database.
• Performed Database Administration of all database objects includingtables, clusters, indexes, views, sequences packagesandprocedures.
• Implemented 11g and upgraded the existing database from Oracle 9i to Oracle 11g.
• Involved inLogical & Physical Database Layout Design.
• Set-up and Design of Backup and Recovery Strategy for various databases.
• Performance tuning of Oracle Databases and User applications.
• UsedSQL*Loaderas an ETL tool to load data into the staging tables.
• UsedDTS Packagesas ETL tool for migrating Data from SQL Server 2000 to Oracle 10g.
• Provided user and production support.
• Improved the performance of the application by rewriting theSQL queries.
• Wrote packages to fetch complex data from different tables in remote databases using joins, sub queries and database links.

Environment: VB 6, Oracle 9i/10g/11g SQL, PL/SQL, Forms 9i, Reports 9i, SQL*Loader, SQL Navigator, Crystal Reports, TOAD.

Confidential, Oshkosh, WI

Oracle PL/SQL Developer

Responsibilities:

• Involved in full development cycle ofPlanning, Analysis, Design, Development, Testing andImplementation.
• Designed logical and physical data models for star and snowflake schemas usingErwin.
• Wrote sequences for automatic generation of unique keys to supportprimary and foreign key constraints in data conversions.
• Created and modifiedSQL*Plus, PL/SQLandSQL*Loader scriptsfor data conversions.
• UpgradedOracle 9i to 10gsoftware in different environments for latest features and also tested databases.
• Developed and modifiedtriggers, packages, functionsandstored proceduresfor data conversions and PL/SQL procedures to create database objects dynamically based on user inputs.
• WroteSQL, PL/SQL, SQL*Plusprograms required to retrieve data using cursors and exception handling.
• Worked onXMLalong with PL/SQL to develop and modify web forms.
• Designed Data Modeling, Design Specifications and to analyzeDependencies.
• Creatingindexeson tables to improve the performance by eliminating the full table scans and views for hiding the actual tables and to eliminate the complexity of the large queries.
• Fine-tuned procedures/SQL queries for maximum efficiency in various databases usingOracle Hints, for Rule based optimization.
• UsedDiscoverer 2000to provide end users easy access to data and help in data analysis.
• Created some Custom reports and Forms for the end users to check the details and errors.

Environment: Oracle 9i, 10g, SQL*Plus, PL/SQL, Erwin 4.1, Oracle Designer 2000,Windows 2000, Toad.