The design here means not only visual arrangements but how all backbone and logic works. We have seen page management and data management before. Here we are talking about how pages work with data and how we can design our typical workflow.
Here are two essential things expected. Formulas and queries.
example z = x – y where x,y,z are elements.
Queries – here, we use queries for bringing data, updating previously saved data, inserting and saving new data.
In the query section, we used simple SQL queries