How To Use a PostgreSQL Database in a Flask Application
In web applications, you usually need a database, which is an organized collection of data. You use a database to store and maintain persistent data that can be retrieved and manipulated efficiently. PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. In this tutorial, you’ll build a small book review web application that demonstrates how to use the psycopg2 library, a PostgreSQL database adapter.
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