20 Data Warehouse Terms You MUST Know Before Your Interview

In this video, I break down 20 data warehouse and data modeling terms you need to genuinely understand, not just memorize, before your next interview.

???? What's covered:
- Database, warehouse, data mart, data lake & lakehouse - how they're actually different
- Data modeling fundamentals - conceptual, logical, physical, ER diagrams, relationships
- Kimball vs. Inmon - the two founding philosophies of data warehouse design
- Dimensional schema design - fact vs. dimension tables, star vs. snowflake schema, grain, types of fact tables, conformed & role-playing dimensions
- Keys & integrity - primary, foreign, surrogate, natural keys, and referential integrity
- Normalization, denormalization, and Slowly Changing Dimensions (SCD Types 1-3)

???? Want to go deeper into data modeling and warehousing with real hands-on practice? Check out the SQL Intermediate course on SQLNest: https://sqlnest.com/

???? Learn SQL and data modeling properly @SQLNest.com
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