Take a look at this example ERD from the wikipedia page on entity-relationship modeling: Even though we've never seen this database before, we can look at this diagram and quickly get a feel for the ...

Take a look at this example ERD from the wikipedia page on entity-relationship modeling: Even though we've never seen this database before, we can look at this diagram and quickly get a feel for the ...

ER diagrams are an excellent tool for making sense of data and understanding how different pieces of data relate to one another. They are a visual, graphical representation of entities and how they ...