Relational database design theory is an enormous topic, but you can learn a few principles that can get help you design an efficient travel database for your website.

Today, Structured Query Language is the standard means of manipulating and querying data in relational databases, though with proprietary extensions among the products.

Relational database management system advantages and disadvantages are often tied together. While they are easy to use, for example, they can be complex and expensive to design and set up.

A classic example of relational database design, this would be nearly impossible to do in a spreadsheet but was easy to put together in Airtable.

Get started modeling entities and relationships for Java data persistence, using an example application based on Java 21 with Hibernate 6.3.