There are three kinds of relationships between the information you are probably going to experience at this phase in the plan: coordinated, one-to-many, and many-to-many. To have the option to distinguish these connections, you have to look at the information and have a comprehension of what business rules apply to the information and tables. In case you don't know, it tends to be useful to meet with somebody who has a piece of careful information. When breaking down table connections, you have to take a gander at the connection between the two sides. When making table connections you generally work with two tables one after another.