Running Policy Server, what is the procedure to migrate Microsoft SQL Server (MSSQL) 2016 to 2019?
At first glance, as per documentation, depending for which component the Microsoft SQL Server is used for, refer to the documentation here:
Policy Store:
How to Configure a Microsoft SQL Server/Microsoft Azure SQL Database Policy Store
Key Store:
Store Key Information in Microsoft SQL Server/Microsoft Azure SQL Database
Session Store:
Store Session Information in Microsoft SQL Server/Microsoft Azure SQL Database
Audit Store:
Store Audit Logs in Microsoft SQL Server/Microsoft Azure SQL Database
User Store:
Configure a Microsoft SQL Server Database Connection Over SSL