ExpressJS Apis

## **Overview** A **database schema** is the shape of our database. It defines what tables we'll have, which columns should exist within the tables and any restrictions on each column. A well-designed database schema keeps the data well organized and can help ensure high-quality data. Note that while schema design is usually left to Database Administrators (DBAs), understanding schema helps when designing APIs and database logic. And in a smaller team, this step may fall on the developer.

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