SQL

This free MySQL course covers everything you need to know to become an expert in MySQL. The course is geared toward application developers, and offers practical guidance to implement schema, indexes, query improvement, and more.

Building efficient and compact tables set us up for success in every other area. Here we'll look at a few guidelines for good schemas.

A special-purpose language designed for managing data held in a relational database.

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Amazon RDS Free Tier lets new users get started with a managed relational database service in the cloud for free to develop new apps, test existing apps, or to gain hands-on experience.

Datebase plans for ElephantSQL, a PostgreSQL database hosting service. The most advanced open-source database, hosted in the cloud.

pgAdmin - PostgreSQL Tools for Windows, Mac, Linux and the Web

Build production-grade applications with a Postgres database, Authentication, instant APIs, Realtime, Functions, Storage and Vector embeddings. Start for free.

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Practice SQL querys with an online terminal. Solve SQL query questions using a practice database. Learn and improve your SQL skills.