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Asked: 2026-06-15T18:38:58+00:00

I am in the process of creating a database for a final project (elementary

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I am in the process of creating a database for a final project (elementary school) and was a bit confused if I was getting my functional dependencies correctly.

Here are a few tables:

ERD

erd2

Here are my derived functional dependents:

Schools Table:
School_ID -> School_Name, School_Year

Subjects Table:
Subjects, School ID -> School Year, Subject Name

Course_Join_Periods Table:
Course_Period_ID , Course_ID , Grade_Level_ID, Teacher_ID, Grade_Level, School_Year, Grade_Name, Period_ID, School_ID, Subject_ID, Subject_Name -> Period_Class_Name

Do I have anything correct here or should I go back to the drawing board and re-teach myself F.D’s?

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  1. Editorial Team

    Determining the FDs is part of analysis, not design. The FDs you have stated could be correct at your elementary school but incorrect or incomplete at mine.

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