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Many-to-One Relationship (*:1) – Data Modeling
Definition:
A Many-to-One Relationship in Power BI Data Modeling is a relationship where multiple records in one table are linked to a single record in another table. The "many" side contains duplicate values, while the "one" side contains unique values.
Example:
Many orders can belong to one customer, but each order is associated with only one customer.
Relationship:
Orders (*) ────────── (1) Customer