pl-300beginner
Star Schema Explained
Learn what a star schema is, why it matters in Power BI, and how it appears in PL-300.
Mar 30, 2026•1 min read
pl-300beginner
Fact vs Dimension
A simple way to tell the difference between fact tables and dimension tables in Power BI.
Mar 27, 2026• 1 min read
Fact tables
Fact tables usually store events, transactions, or measurements.
Dimension tables
Dimension tables usually store descriptive attributes used to slice and group facts.
Rule of thumb
If the table answers "how much" or "how many," it is often a fact. If it answers "which one" or "what kind," it is often a dimension.