3 Questions
Find the incorrect statement about a 1:N relationship in a data model
It implies the presence of more than one case table
What does a 1:N relationship represent in a data model?
There are n elements in table 2 for every one element in table 1
How are tables associated in a 1:N relationship in a data model?
By mapping keys
Study Notes
1:N Relationships in Data Models
- Represent a relationship between one parent entity and multiple child entities
- One parent record in one table can be associated with multiple records in another table
- Used to model relationships where one entity has multiple instances of another entity
- Tables are associated through a foreign key in the child table that references the primary key in the parent table
Test your knowledge on data modeling with this quiz! Find the incorrect statement about 1:N relationships and learn more about the implications of connecting tables in a data model.
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