How to automatically STOP SQL Server Agent when no jobs are running?

Question

I have around 40 different sql server jobs in one instance. They all have different schedules. Some run once a day some every two mins some every five mins. If I have a need to

Answer 1

The question title scared me a bit - I thought you wanted to programmatically shut the SQL Server agent down anytime there were no jobs running. My answer to that question would be "Why?" There is no need to.

But if you are just looking to do a planned restart or shut down and you don't have a third party tool like Sentry One's SQL Sentry Event Manager to have a visualization, I would just let the SQL Server Agent Job History and Job Activity Monitor help here. The Job Activity monitor can show you which jobs are running right now in the status column. You can also see the last execute and next execute dates and times.

In the object browser in SSMS, connect to your instance, then expand SQL Server Agent, then you'll see Jobs and under that you'll see "Job Activity Monitor" - this view should show you what you need.

Also - don't worry about shutting down before a job executes. If you do that, you will either have that job just missing its schedule and you can let it run when it is next due to (depending on the job and its purpose) or you can manually right click and execute the job.

For more on the activity monitor for jobs, see Monitor Job Activity in the product documentation.