A database model that describes the attributes of entities and the relationships among them. An entity is a file (table). Today, ER models are often created graphically, and software converts the ...

At its heart, data modeling is about understanding how data flows through a system. Just as a map can help us understand a city’s layout, data modeling can help us understand the complexities of a ...

Undoubtly, databases have become an essential part of everyday life. Every day we engage ourselves in several activities that involve interaction with databases, like when we book an airline ticket, ...