# one-to-many

> type of cardinality that refers to the relationship between two entity types A and B in which an element of A may be linked to many elements of B, but a member of B is linked to only one element of A; the opposite of many-to-one

**Wikidata**: [Q45406573](https://www.wikidata.org/wiki/Q45406573)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/One-to-many_(data_model))  
**Source**: https://4ort.xyz/entity/one-to-many