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 ...
Relational databases aren't designed to make programming against them easier, but to ensure performance, data consistency and concurrency. Seldom do developers work directly with data in the form that ...
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