Is your team member asking about logging from an application or do they want the database to do logging of operations against it? If you are looking to do logging from an application and you're thinking of using Azure, I'd recommend using ApplicationInsights. If you're looking for logs of operations against the database then that sounds more like the audit question you asked earlier: https://www.sqlservercentral.com/Forums/1928772/Auditing-capabilities-on-Azure-SQL-Database