- Coursewikia - Udemy - Data Warehouse Develope... Link Instant

A designs, builds, and maintains the central repository (data warehouse) where structured data from multiple sources is stored for reporting and analysis. This role differs from a Data Engineer (broader pipelines) and an ETL Developer (focuses only on extraction/transformation/loading).

3.1 Complex joins, aggregations, window functions 3.2 Query performance: indexing, distribution keys, partitioning 3.3 Materialized views vs. views - CourseWikia - Udemy - Data Warehouse Develope...

| Week | Focus Area | Udemy Course Example | Key Deliverable | | :--- | :--- | :--- | :--- | | 1-2 | SQL Mastery | SQL for Data Analysis (Luke Barousse) | Write complex joins & window functions | | 3-4 | Data Modeling | Data Warehouse Design (Rares Ilea) | Draw a Star Schema on paper | | 5-6 | ETL Tools | Hands-On ETL with SSIS (Eman Hassan) | Build a package that loads 1M rows | | 7-8 | Performance | Oracle/SQL Server Performance Tuning | Index creation & query refactoring | | 9-10 | Cloud DW | Snowflake Zero to Hero (RapidStart) | Create a cloud data warehouse | | 11-12 | BI Integration | Tableau/Power BI for Developers | Connect Power BI to your DW | A designs, builds, and maintains the central repository