ETL Training in Chennai

Training in Chennai offers best ETL Training in Chennai with most experienced professionals. Our Instructors are working in ETL and related technologies for more years in MNC’s. We aware of industry needs and we are offering ETL Training in Chennai in more practical way. Our team of ETL trainers offers ETL in Classroom training, ETL Online Training and ETL Corporate Training services. We framed our syllabus to match with the real world requirements for both beginner level to advanced level. Our training will be handled in either weekday or weekend’s program depends on participant’s requirement.

We are the best Training Institute offers certification oriented ETL Training in Chennai. Our participants will be eligible to clear all type of interviews at end of our sessions. Our ETL Training Course Fees is very moderate compared to others.

Data Ware Housing Concepts

• What is Data Warehouse?
• Need of Data Warehouse
• Introduction to OLTP, ETL and OLAP Systems
• Difference between OLTP and OLAP
• Data Warehouse Architecture
• Data Marts
• ODS [Operational Data Store]
• Dimensional Modelling
• Difference between relation and dimensional modelling
• Star Schema and Snowflake Schema
• What is fact table
• What is Dimension table
• Normalization and De-Normalization

ETL Testing

• ETL architecture
• What is ETL and importance of ETL testing
• How DWH ETL Testing is different from the Application Testing
• SDLC/STLC in the ETL Projects (ex: V Model, Water fall model)
• Challenges in DWH ETL Testing compare to other testing
  • Incompatible and duplicate data.
  • Loss of data during ETL process.
  • Testers have no privileges to execute ETL jobs by their own.
  • Volume and complexity of data is very huge.
  • Fault in business process and procedures.
  • Trouble acquiring and building test data.
• ETL Testing Work flow activities involved
  • Analyze and interpret business requirements/ workflows to Create estimations
  • Approve requirements and prepare the Test plan for the system testing
  • Prepare the test cases with the help of design documents provided by the developer team
  • Execute system testing and integration testing.
  • Best practices to Create quality documentations (Test plans, Test Scripts and Test closure summaries)
  • How to detect the bugs in the ETL testing
  • How to report the bugs in the ETL testing
  • How to co-ordinate with developer team for resolving the defects
• Types of ETL Testing
  • Data completeness.
  • Data transformation.
  • Data quality.
  • Performance and scalability.
  • Integration testing.
  • User-acceptance testing.
• SQL Queries for ETL Testing
• Incremental load testing
• Initial Load / Full load testing
• Different ETL tools available in the market
  • Informatica
  • Ab Initio
  • IBM Data stage
• Power Center Components
  • Designer
  • Repository Manager
  • Workflow Manager
  • Workflow Monitor
  • Power Center Admin Console
• Informatica Concepts and Overview
  • Informatica Architecture.
• SourcesWorking with relational Sources
  • Working with Flat Files
• Targets
  • Working with Relational Targets
  • Working with Flat file Targets
• Transformations – Active and Passive Transformations
  • Expression
  • Lookup –Different types of lookup Caches
  • Sequence Generator
  • Filter
  • Joiner
  • Sorter
  • Rank
  • Router
  • Aggregator
  • Source Qualifer
  • Update Strategy
  • Normalizer
  • Union
  • Stored Procedure
  • Slowly Changing Dimension
• Workflow Manger
  • Creating Reusable tasks
  • Workflows, Worklets & Sessions
  • Tasks
• Session
• Decision task
• Control Task
• Event wait task
• Timer task
• Indirect Loading
• Constraint based load ordering
• Target Load plan
• Worklet ,Mapplet ,Resuable transformation
• Migration ?ML migration and Folder Copy.
• Scheduling Workflow
• Parameter and variables
• XML Source, Target and Transformations
• Performance Tuning
• Preparation of Test Cases
• Executing Test case
• Preparing Sample data
• Data validation in Source and target
• Load and performance testing
• Unit testing Procedures.
• Error handling procedures.

Course Duration:  2  to  3 Month, 2 hpd

Contact:  +91  9080334727

Mail:  info@velgrotechnologies.com