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I created a ERD (dont know if correct) but the real problem is all about CSV file
as you can see guys I have three tables, Student(top left corner), teacher(3rd from top left) and course table(2nd from top) now our system can upload a CSV file for proff and student the problem is I dont know how to upload a file for course that has a relation for tables(proff and stud).
If i understand correctly you want to Bulk-Load CSV files to tables with foreign key constraints.
See this question and accepted Answer
How to use BULK INSERT when rows depend on foreign keys values?