DB section has been updated to add some SQL code.
A structure diagram is a tree like hierarchical structure that shows each section of the program – expanding it where appropriate.
Structure diagrams must be read from the top down from left to right. and they use certain symbols as shown to the right
Symbols used in a Structure Diagram
This basic program asks the user for two values and then adds the two values together.
Each main problem is refined into smaller sub problems.