Informatica ETL Developer roadmap-2023

 

Informatica ETL Developer

Informatica ETL (Extract, Transform, Load) is a data integration tool used for extracting, transforming, and loading data from various sources into a target system or database. It is a powerful tool used in data warehousing and business intelligence applications

Here's a roadmap for ETL Developer: Learn the basics of ETL:

Before diving into Informatica, it's important to understand the basics of ETL (Extract, Transform, and Load) processes. This includes understanding data sources, data types, and the different methods of extracting data.

Learn Informatica PowerCenter:

Informatica PowerCenter is the most widely used ETL tool. Start with the basics of PowerCenter and then move on to more advanced features such as mappings, transformations, sessions, and workflows.

Understand Data Warehousing Concepts:

Understanding data warehousing concepts is important for an ETL developer. This includes understanding star and snowflake schema, dimensional modeling, and data marts.

Syllabus for data warehousing concepts

• OLTP vs OLAP
• What is DWH
• What is Data Mart?
• DWH Development
• DWH Architectures
• What is Dimensional Modelling
• What is Dimension, Fact and Grain
• Steps to implement dimensional modelling
• Types of Dimensions and Dimension Tables.
• Types of Facts and Fact tables
• Slowly Changing Dimension concepts (Basic and Advanced)
• Data Models.
  
  Learn SQL
  
  
  SQL is an essential skill for an ETL developer. You should be able to write complex SQL queries to extract data from various sources.
  
  

  • DDL, DQL, DML, TCL and DCL
  • TRANSACTIONS
  • VIEWS
  • Constraints
  • Sub Queries
  • SQL Joins
  • Aggregator Function
  • Analytical Functions
  • Set, Arithmetic Operators
  • Indexes

  Master the Informatica PowerCenter Transformations:

   Informatica PowerCenter provides a wide range of transformations that can be used to transform and cleanse data. Learn and master transformations such as aggregator, joiner, filter, lookup, and expression

  • Filter Transformation
  • Router Transformation
  • Expression Transformation
  • Aggregator Transformation
  • Rank Transformation
  • Sorter Transformation
  • Joiner Transformation
  • Lookup Transformation
  • Update Strategy Transformation
  • Union Transformation
  • Normalizer Transformation
  • SCD Type 1,2,3
  • Sequence Generator Transformation
  • Reusable Transformation
  • Worklet
  • Mapplet
    
    Learn Other Informatica Tools:
    Informatica provides other tools such as Informatica Cloud, PowerExchange, and MDM. Learn these tools to broaden your skillset
    
    By following this roadmap, you can progress in your career as an Informatica ETL developer and become an expert in the field.