What is a Weak relationship

[Anonymous]

Hello

What is the meaning of a weak relationship in the below context (screenshot) -

Regards

[amitchandak · Accepted solution]

@Anonymous , as per Article from SQL BI

"In a strong relationship the engine knows that the one-side of the relationship contains unique values. If the engine cannot ensure that the one-side of the relationship contains unique values for the key, then the relationship is weak. A relationship can be weak either because the engine cannot ensure the uniqueness of the constraint – due to technical reasons"

refer -https://www.sqlbi.com/articles/strong-and-weak-relationships-in-power-bi/