To this effect, they have introduced the HierarchId data type in SQL Server 2008. In traditional hierarchies, a row merely stores a reference to its parent node.

Microsoft announced a preview of SQL Server 2025 with native vector support, improved security, performance, and Azure integration.

Dino Esposito explains JSON-to-rowset native support in SQL Server 2016 and provides a realistic perspective of data query when you have JSON data stored in the database.