Oracle Programmer/developer Resume
Exton, PA
SUMMARY:
- 7 years of programming experience as an Oracle PL/SQL Developer in Analysis, Design and Implementation of Business Applications using the Oracle Relational Database Management System (RDBMS).
- Expertise in performing Data export, Import and various operations using TOAD, SQL DEVELOPER, FORMS AND REPORTS.
- Extensively worked in Client - Server application development using Oracle 11g/10g/9i FORMS 9i/6i, REPORTS 10g/6i, Oracle Import and Export Utilities.
- Experience in application development using various advanced features of Oracle like Bulk Collections, Table Functions, and Autonomous Transactions, Dynamic SQL, Object types and Records.
- Developed Complex trigger using PL/SQL for data integrity and enforcing business rules.
- Extensive experience in data migration techniques using Oracle External Tables, SQL* LOADER, UTIL file loader and batch processing.
- Carried out testing in test database for upgrading/migrating from Oracle 9i to Oracle 10g.
- Demonstrated expertise utilizing ETL tools, including Oracle Data Integrator, Informatica, Datastage and RDBM systems like Oracle, DB2, Teradata, Sybase and SQL Server.
- Experience in developing logical and physical database design, data modeling using Erwin & Informatica (Power Center 9.1).
- Experience wif Oracle APEX to develop new and support existing business applications.
- Experience wif Data Vault Concepts for ETL loads to load from date warehouse.
- Experience wif DBA activities like creating table spaces, granting and revoking privileges on database objects.
- Developed and maintained data preparation and validation routines to support Data warehousing
- Strong knowledge of Extraction Transformation and Loading (ETL) processes using UNIX shell scripting, SQL, PL/SQL and SQL Loader.
- Extensively involved in Oracle SQL, PL/SQL tuning in OLTP and DWH applications using STATSPACK, Explain Plan, TKPROF, and Hints in Oracle 9i.
- Experience in UNIX Shell Scripting for batch processing
TECHNICAL SKILLS:
RDBMS: Oracle 11g/10g/9i/8i
Oracle Tools: SQL * Loader, TOAD, SQL Developer, SQL Tool, SQL Navigator, Developer 2000 (REPORTS 6i/9i/10g/11g, FORMS 6i/9i/10g/11g), SQL*Plus, Discoverer, Power Builder 12, Oracle APEX, Data Vault
ETL Tools: Informatica Power Center 8.6.X/6.1, Data stage
Data Modeling Tools: Erwin 4.5/4.0/3.5, Designer 2000, Microsoft Visio 2003
Data Analysis: Requirement Analysis, Business Analysis, Detail Design, Data Flow Diagrams, Data Definition Table, Business Rules, Data Modeling, Data Warehousing, System Integration.
Programming Languages: Unix Shell Scripting, Perl Programming, XML, C, C++,Java, HTML,XML
Environment: Sun Solaris 2.6/2.7/2.8/8.0, Red Hat Linux, Windows NT/ 95/ 98/ 2000/ XP,MS DOS 6.22
PROFESSIONAL EXPERIENCE:
Confidential, Exton PA
Oracle Programmer/Developer
Responsibilities:
- Oracle data warehouse developer responsible for the technical design, development and testing of extract, transform, and load (ETL) programs.
- Responsible for working wif data architect and business analysts to design/build data loading and conversion programs.
- Experience wif Performance Tuning for Oracle RDBMS using Explain Plan and HINTS.
- Loaded data using oracle database utilities such as data pump, SQL*loader and external tables.
- Developed PL/SQL package procedures using REF cursor, Collections and Dynamic SQL.
- Developed PL/SQL package procedures to fetch bulk rows from cursor variable to collections.
- Used Data Vault concept for loading data from data ware house.
- Incorporated bulk incremental inserts in PL/SQL procedures.
- Developed custom Forms and Reports as per client requirements and making them web enabled using Oracle Reports builder 10g and Oracle Forms builder 10g respectively.
- Operated BLOBS, CLOBS and BFILES using PL/SQL (DBMS LOB) packages.
- Enhanced database functionality using Oracle supplied PL/SQL packages.
- Primary ETL Developer for creating and enhancing multiple data feeds including standard feeds like Enrollment, Awards, Transactions, and Coupons etc.
- Programed in Unix shell scripts to provide a user interface to Oracle forms and reports.
- Created complex Informatica mappings to load the data mart and monitored them. The mappings involved extensive use of transformations like Aggregator, Filter, Router, Expression, Joiner, Sequence generator.
- Developed UNIX Korn shell scripts to process file feed
Environment: Oracle 11g, Data Stage, Oracle Developer Suite 10g,Data Vault,, Oracle Forms 10g, reports 10g, Informatica Power Center 9.1/9.5, TOAD, SQL DEVELOPER, UNIX SHELL Scripting.
Confidential, Harrisburg PA
Oracle PL/SQL developer
Responsibilities:
- Database performance monitoring and identifying bottlenecks hindering the performance of the
- Created ODI packages, scenarios using interfaces, variables, procedure. Performance tuned the ODI interfaces.
- Participated in code reviews. Did code promotions from dev to test, staging and production environment using ODI.
- Worked on Informatica Power Center to develop various mappings using different transformations and also developed workflows.
- Design and implementation of stored procedures and triggers for automating tasks
- Generated SQL and PL/SQL scripts to install create and drop database objects, including tables, views, primary keys, indexes, constraints, packages, sequences, grants and synonyms.
- Developed SQL* loader scripts to load data in the custom tables.
- Used Oracle APEX 4.0 for designing application structure.
- Formulated SQL queries, functions and processes as per customization requirement for APEX
- Supported APEX applications and conducted performance tuning for PLSQL.
- Analyzed, designed and developed Oracleforms 10g queries, layout, report triggers, parameter form, data models etc
- Maintained a series of UNIX Shell Scripts to manage batch order processing.
- Used ETL tools to extract and load data from SQL Server and flat files to Oracle database.
Environment: Oracle 11g, Informatica Power Center 9.1, Oracle Data Integrator 10.1.3.5, UNIX Server 4.3, SQL DEVELOPER, Windows NT, SQL*PLUS, SQL Navigator and TOAD.
Confidential, Jacksonville
Oracle PL/SQL developer
Responsibilities:
- Primary responsibilities included system analysis, coding, testing, debugging and deploying.
- Developed Forms Screens used by Oracle Developer Suite for forms procedures, functions and packages generate to end product of forms.
- Created scripts to createnew tables, views, queriesfor new enhancement in the application using TOAD.
- CreatedPL/SQL scriptsto extract the data from the operational database into simple flat text files usingUTL FILEpackage
- Used SQL*LOADER and UTIL file loader to upload bulk data by writing scripts for the Control file.
- Design and implementation of stored procedures and triggers for automating tasks
- Developed the UNIX scripts using KORN shell to automate jobs.
- Analyze the source data structure and perform the Logical mappings.
- Created Forms using forms builder to showcase the data to users and enable them to perform the required updates
- Monitored the database and tuned the application code for better performance using wif TKPROF.
- Scheduled batch jobs using ODI scheduler.Wrote technical specification requirements and provided production Support.
- PowerBuilder used for simplifying migration process.
Environment: Oracle 11g/10g, Oracle Developer Suite 10g (Forms and Designer), ODI 10.1.3.6, Oracle Application Servers, PowerBuilder12, UNIX Server 4.3, Windows NT, SQL*PLUS, SQL Navigator and TOAD.
Confidential, Charlotte, NC
Oracle PL/SQL developer
Responsibilities:
- Involved in analysis, design and coding of Oracle processes in PL/SQL to build packages.
- Design and Development of data validation, load processes, test cases using PL/SQL, Stored Procedures, Functions, Triggers using Oracle 11g.
- Used SQL*LOADER and UTIL file loader to upload bulk data by writing scripts for the Control file.
- Working on the ETL side of the process to load data into database from different servers.
- Created partitions for parallel processing of data.
- Designed and Developed several reports using Oracle Reports 10g.
- Developed UNIX Shell scripting for job automation and daily backup.
- Created documentation, design and implemented rich user interfaces using Oracle Apex.
- Involved in performance tuning using wif TKPROF.
- Documentation of the business process through Designer.
- Writing backend stored procedures.
- Developed Procedures, Functions and Triggers to be implemented in the Reports.
- Developed data models for adding new tables and fields to the data warehouse.
- Writing event driven triggers, functions, and packages as needed
- Used Informatica Power Center 8.6 for extraction, transformation and load (ETL) of data in the data warehouse
- Worked on production support, and receive production calls, and working on trouble reports which are received from clients
Environment: Oracle 11g, Oracle 10g, Pro*C, Informatica Power Center 8.6.1, Oracle APEX, Oracle Application Servers, UNIX Server 4.3, Windows NT, SQL*LOADER, and TOAD.
Confidential, Madison, WI
Oracle Developer
Responsibilities:
- Database design and development including Tables, Primary and Foreign Keys, Indexes, Stored Procedures and Database access policies for the company’s education system.
- Generated SQL and PL/SQL scripts to install create and drop database objects, including tables, views, primary keys, indexes, constraints, packages, sequences, grants and synonyms.
- Maintained a series of UNIX shell scripts to manage batch order processing.
- Database performance monitoring and identifying bottlenecks hindering the performance of the database.
- Developed web applications and business solutions using Oracle APEX.
- Analyze and understand business requirements for enhancements and additions to the data warehouse.
- Created changes in the database according new requirements (new tables in the existing database and fields in the existing tables).
- Constructed and implemented multiple-table links requiring complex JOIN statements, including outer-joins and self-joins.
- Programed in Unix shell scripts to provide a user interface to Oracle forms and reports.
- Developed and implemented Oracle Forms 9i and Oracle Reports 9i
- Tuned SQL statements using hints for maximum efficiency and performance, created and Maintain/modify PL/SQL packages, mentor others wif the creation of complex SQL statements, perform data modeling and create/maintain and modify complex database triggers and data migration scripts.
Environment: Oracle 11g/10g, Oracle REPORTS Developer (11g), UNIX Server 4.3, Rational Clear Quest, and Oracle APEX, SQL NAVIGATOR, JavaScript, HTML, XML, CSS.
Confidential
Oracle Developer
Responsibilities:
- Planning Backup/Restoration Strategy, Executing UNIX Shell Scripts using jobs, Planning and scheduling Backups, taking Logical Backups (wif Export / Import utilities).
- Tuning Applications, Tuning Memory and Tuning Disk Usage.
- Coding procedures, functions, and triggers and generating the specified reports.
- Tuning of the SQL queries using Explain Plan, SQL*Trace and TKPROF.
- Refreshing the test database wif the production database.
- Responsible for the creation and testing of hot and cold backup scripts using PL/SQL.
- Created and maintained the UNIX shell scripts to automate common tasks..
- Created of Roles, Users, Table spaces, database triggers, procedures etc.
- Modifying the database design and structure, as necessary, from time to time upon information given by application users and developers.
- Created FORMS and REPORTS using Visual Basic.
Environment: Sun Solaris 7, Oracle9i, Oracle Enterprise Manager, SQL*LOADER/Import/Export Scripts, Erwin, TOAD, Visual Basic 5.0, Crystal Reports.
