School Management System SQL Database With ER Diagram

Hello, I want some one to Create a MS SQL Database along with ER Diagram and Data Flow Diagram or Data Flow Algorithm. My requirements are: School has a Session e.g Session 2018 Each Session have Several Classes and each Class have several Sections Each Section have many Students Every Class of a specific Session has a specific Fee which has Parts e.g Admission Fee (Once) Annual Fee (Yearly) Tuition Fee (Monthly) And a may have a Custom Fee e.g Fine of some type Every Class have different Subjects and have Exams e.g 1st-term, 2nd-term, and Final Exam in every Subject has an obtained and Total Marks then a Result generated Automatically based on Marks By Data Flow Algorithm I mean instructions which explain the Tables and relationships created.