Update for modification
Select * from * to query.
Delete for deletion.
I remember it seems so much.
Do statistics need crystal reports?
Data dictionary, E-R diagram, relational model and data table are all very simple. You can refer to the book Introduction to Software Engineering that you have learned.
The data flow diagram is a little troublesome, so don't make a mistake about the main mode!
It is very simple for you to make this small system. Learn more by yourself! Simple I can answer for you!