When using Microsoft Purview to govern access to Azure SQL or SQL Server on Arc, SQL Server must rely on policies that have been created externally. This means that you cannot use the traditional metadata that SQL uses to authenticate and check permissions.
Join this session by Andreas Wolter who has led the efforts for external access control for SQL from its beginnings to gain an understanding of how different types of policies from Azure Purview are integrated into the SQL Engine and how to troubleshoot policy-based authorization with Extended Events and Dynamic Management Views.