ETL TESTING ONLINE TRAINING

KITS Online Training Institute is one of the best training institute in leading IT online training. We provide best ETL Testing online training with our highly professional real time trainers. ETL stands for “ Extract-Transform-Load” and it is a process of how data is loaded from the source system to the data warehouse. Data is extracted from an OLTP database, transformed to match the data warehouse schema and loaded into the data warehouse database. KITS  also do corporate trainings and help them to train their employees. We have been offering courses to consultants, companies so that they can meet all the challenges in their respective technologies and we also provide Similar Courses like Dell Boomi online training.

ETL Testing Training Course Content

Data Warehouse concepts

  • Why Data Warehouse
  • What is Data Warehouse?
  • OLTP VS OLAP
  • Data Warehouse Architecture
  • Importance of Staging
  • Dimension Modeling
  • Type of dimensions
  • FACTS
  • Schemas
  • Star
  • Snowflake
  • Galaxy
  • Surrogate Keys

SQL concepts

  • DDL
  • DML
  • Joins
  • WHERE, Group By, Having
  • Operators
  • Except, UNION, UNION ALL
  • Rank, Row_Number functions
  • String functions
  • Date functions
  • Practices queries on SQL SERVER 2008 R2

ETL Testing concepts

  • QA roles and responsibilities in ETL Testing
  • What is mapping document (Transformation, cleansing etc…)
  • Data flow from source to staging to target
  • Test Scenarios
  • Test Cases writing
  • Source to stage
  • Stage to target
  • Test Execution
  • Initial and Incremental load testing
  • Level of testing
  • Functional Testing
  • ETL jobs/schedule testing
  • Defects in ETL Testing
  • Practice on UNIX commands using CYGWIN tool
  • Import flat file to database table in Oracle/Teradata/SQL Server
  • Instruction document on running and monitor workflows/jobs in SSIS/Informatica
  • Samples in SSIS tool

Highlights of ETL Testing Online training:-

*  Very in depth course material with Real Time Scenarios for each topic with its Solutions for ETL Testing Online Trainings.

*  We Also provide Case studies  for ETL Testing Online Training.

*  We do Schedule the sessions based upon your comfort by our Highly Qualified Trainers and Real time Experts.

*  We provide you with your recorded session for further Reference.

* We also provide Normal Track, Fast Track and Weekend Batches also for ETL Testing Online Training.

* We also provide Cost Effective and Flexible Payment Schemes.

What is ETL?

ETL stands for Extract-Transform-Load and it is a process of how data is loaded from the source system to the data warehouse.  Data is extracted from an OLTP database, transformed to match the data warehouse schema and loaded into the data warehouse database.  Many data warehouses also incorporate data from non-OLTP systems such as text files, legacy systems and spreadsheets.

  1. Extract
  •  Extract relevant data
  1. Transform
  •  Transform data to DW (Data Warehouse) format
  • Build keys  – A key is one or more data attributes that uniquely  identify an entity. Various types of keys are primary key, alternate key, foreign key, composite key, surrogate key. The datawarehouse owns these keys and never allows any other entity to assign them.
  •  Cleansing of data :After the data is extracted, it will move into the next phase, of cleaning and conforming of data. Cleaning does the omission in the data as well as identifying and fixing the errors.  Conforming means resolving the conflicts between those data’s that is incompatible, so that they can be used in an enterprise data warehouse. In addition to these, this system creates meta-data that is used to diagnose source system problems and improves data quality.
  1. Load
  •  Load data into DW ( Data Warehouse)
  • Build aggregates – Creating an aggregate is summarizing and storing data which is available in fact table in order to improve the performance of end-user queries.

What is ETL Testing?

ETL testing is done to ensure that the data that has been loaded from a source to the destination after business transformation is accurate. It also involves the verification of data at various middle stages that are being used between source and destination. ETL stands for Extract-Transform-Load.

ETL Testing Process

Similar to other Testing Process, ETL also go through different phases. The different phases of ETL testing process is as follows

ETL testing is performed in five stages

  1.  Identifying data sources and requirements
  2. Data acquisition
  3. Implement business logics and dimensional Modelling
  4. Build and populate data
  5. Build Reports

Responsibilities of an ETL tester

Key responsibilities of an ETL tester are segregated into three categories

  • Stage table/ SFS or MFS
  • Business transformation logic applied
  • Target table loading from stage file or table after applying a transformation.

Some of the responsibilities of an ETL tester are

  • Test ETL software
  • Test components of  ETL datawarehouse
  • Execute backend data-driven test
  • Create, design and execute test cases, test plans and test harness
  • Identify the problem and provide solutions for potential issues
  • Approve requirements and design specifications
  • Data transfers and Test flat file
  • Writing SQL queries3 for various scenarios like count test

ETL Performance Testing and Tuning

ETL Performance Testing is a confirmation test to ensure that an ETL system can handle the load of multiple users and transactions.  The goal of performance tuning is to optimize session performance by eliminating performance bottlenecks. To tune or improve the performance of the session, you have to identify performance bottlenecks and eliminate it. Performance bottlenecks can be found in source and target databases, the mapping, the session and the system. One of the best tools used for Performance Testing is Informatica.

Automation of ETL Testing

The general methodology of ETL testing is to use SQL scripting or do “eyeballing” of data.. These approaches to ETL testing are time-consuming, error-prone and seldom provide complete test coverage. To accelerate, improve coverage, reduce costs, improve Defect detection ration of ETL testing in production and development environments, automation is the need of the hour. One such tool is Informatica.

What you will learn in this ETL Testing Online Training Course?

  1. Understand data warehousing and how Business Intelligence works
  2. ETL basics, ETL Testing Process, best practices and Standards
  3. Learn ETL data validation
  4. understanding of ETL testing workflow process
  5. Learn how to work with RDBMS
  6. Constraint Testing, Error Handling, Dependency Testing
  7. Compare ETL Database Testing and Data Warehouse Testing
  8. Deploy SQL for implementing data Checks using SQL
  9. Prepare for the ETL Certification

Who should take this Online ETL Testing Training?

  • ETL and SQL Developers, software engineers and analysts
  • BI, Mainframe, and database Project managers

What are the prerequisites for learning ETL?

Anybody can get trained as there are no prerequisites to learn ETL Testing. A basic knowledge of SQL concepts can be helpful.

Scheduling Demo With Trainer:

If you would like to take the online demo for ETL Testing trainer can you please make an inquiry or fill the form for demo registration, one of our executives will arrange a meeting with the expert trainer.

Course Finished Certificate :

After finish, the course we provide ETL Testing course finished certificate of kits technologies looks like

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