Databases

Multi-model databases combine different database models into a single backend system. Learn about the use-cases and what the best multi-model databases are currently available on the market in this article.

MySQL events run on a schedule defined by the user. They automate database maintenance and execute tasks periodically. Learn how to use them in this simple tutorial.

Graph databases are NoSQL systems created for exploring correlation within complexly interconnected entities. Learn when and how to use them.

This tutorial explains what MySQL JOINS are and how to use them to combine information located in multiple tables, producing a unified result.

Object databases integrate seamlessly with object-oriented programming languages. The object-oriented approach to database modeling makes it easier to model complex real-world problems. Learn about how they work and what they can bring to the table in this article.

MySQL stored procedures group multiple tasks into one and save the task on the server for future use. Stored procedures simplify database management and reduce network traffic. Learn how to use stored procedures in this tutorial.

MySQL triggers provide control over data validation when inserting, updating or deleting data from a database. Learn how to use triggers through an example database and when to use each type of trigger.

Thanks to Spark's DataFrame API, we can quickly parse large amounts of data in structured manner. DataFrame API is available for Java, Python or Scala and accepts SQL queries.

NoSQL data models are built for speed, efficiency, and scalability. This tutorial covers different techniques for building NoSQL data models.

SQL Server Express is a light, feature-restricted version of Microsoft's SQL Server 2019.
This tutorial will guide you through the process of installing, upgrading, or uninstalling your copy of SQL Server Express 2019.