How do you compare STI with Polymorphic association

Question

Accepted Answer

STI is used for inheritance while polymorphic association is used for multiple associations

STI is used for modeling inheritance relationships where different classes share common attributes and behaviors
Polymorphic association is used when a model can belong to more than one other model on a single association
STI can lead to a large number of columns in a table, while polymorphic association requires an additional column to store the association type and ID
STI can be more efficient for querying data related to a specific type, while polymorphic association can be more flexible for handling multiple associations

Top Encora Senior Ruby on Rails Developer interview questions & answers