In this tutorial, we will give an overview of the recent advances in the fusion of relational and graph database techniques. In particular, we mainly focus on the key operations (i.e., relational join ...

Excel possesses formidable database powers. Creating a relational database starts with a Master table that links it to subordinates, called (awkwardly) Slave, Child, or Detail tables. Before we ...

The Jakarta Persistence API (JPA) is a Java specification that bridges the gap between relational databases and object-oriented programming. This two-part tutorial introduces JPA and explains how ...

Multivalue databases handle certain data structures that are just a little too complex for conventional relational databases. This post is one of a series that introduces the fundamentals of NOSQL ...

SQL Server's OpenJson function will let you dismantle JSON structures into relational tables, including tables with foreign/primary key relationships. As I noted in an earlier column, JSON is great ...