Question: C# analysis without building the code, on Azure DevOps

I want to know if it is possible to run the codeQL queries for a C# code without building it.

I am using Advanced Security inside Azure devops, which requires me to setup a build first then only I can run codeql scan.
I want to do the above directly by just setting up codeQL database and running the code scan after that.

The issue names no repository file, test, or entry point. Start by checking the C# CodeQL database setup and Azure DevOps Advanced Security build requirements; done would be a documented answer on whether scanning can run without a build and, if so, the supported setup.

Written by the indexing model from the issue text.