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Connection pools are a must in web applications that require handling simultaneous requests that consume a database. We’ll continue where the previous step of the tutorial left off. Refer to [alejandro_du/jdbc-tutorial-part-1-connecting-to-a-database-kfc and [part 2] of this tutorial for more details. The source code is available on [GitHub](https://://://www.mariadb-developers/java-quickstart/tree/main/jDBc)