SQL Server OPENJSON – Map JSON to a relational table

Introduction In this article, I’m going to explain how the SQL Server OPENJSON function works and how it can help you transform a JSON object into a relational database table. When using a relational database system, it’s a very good idea to design the database schema according to the relational model. However, there are specific situations when the relational model is way too strict, and that’s when a JSON column type might be very handy. For instance, as I explained in this article, when designing an audit log table, it’s much more… Read More

SQL Server audit logging using triggers

Introduction In this article, we are going to see how we can implement an audit logging mechanism using SQL Server database triggers to store both the previous and the current state of a given target table record in JSON column types.

How does a relational database work

Introduction While doing my High-Performance Java Persistence training, I came to realize that it’s worth explaining how a relational database works, as otherwise, it is very difficult to grasp many transaction-related concepts like atomicity, durability, and checkpoints. In this post, I’m going to give a high-level explanation of how a relational database works internally while also hinting some database-specific implementation details.

How to call SQL Server stored procedures and functions with JPA and Hibernate

Introduction This article is part of a series of posts related to calling various relational database systems stored procedures and database functions from Hibernate. The reason for writing this down is because there are many peculiarities related to the underlying JDBC driver support and not every JPA or Hibernate feature is supported on every relational database.