Having views in DB vs Data manipulation in Expression rules - What approach is best in terms of Performance?

As per my understanding, If any business rule which required user interaction for evaluation and use other constants/rules value for evaluation then use expressions. However, bussines logic is kind of permanent rule, need data from other tables for manipulation or involve complex evaluation to convert user data into useful information use DB store procedure. DB views are only required when you want to display data from many table in single place form or appian.

As per my understanding, If any business rule which required user interaction for evaluation and use other constants/rules value for evaluation then use expressions. However, bussines logic is kind of permanent rule, need data from other tables for manipulation or involve complex evaluation to convert user data into useful information use DB store procedure. DB views are only required when you want to display data from many table in single place form or appian.