Consider the difficulties. What if we create a many-to-many relation, and renamed the table to 'tags'? The result is that we can add more tags to a presentation than just the difficulty. Think of 'software engineering' 'data science', 'web development', etc.
Consider the difficulties. What if we create a many-to-many relation, and renamed the table to 'tags'? The result is that we can add more tags to a presentation than just the difficulty. Think of 'software engineering' 'data science', 'web development', etc.