This ER Diagram for Bank Database shows how a customer's information, such as his credit card, account, and loans, is linked to the bank's operations. Make sure of the entities and attributes for a better understanding. A bank customer can withdraw, deposit, or borrow money. The diagram above depicts the details required to create a relational database. Since ER diagrams are typically used to solve a specific problem, they always have a problem to solve. A bank has too many entities, so the ER diagram helps accommodate them. Some customers have multiple accounts. Keeping track of each account is, therefore, difficult. ERDs aid in the consolidation of accounts into a single entity.
