Help. How can I log people out of a database

I have one database that on our server that 5 people login to. Sometimes throughout the month I need then to logout so I can add, update ect.

Is there a simple code or way I can log everyone that’s logged into my database. I’ve seen code that will log people off if the database is split; I’m not ready to split the database.

I was thinking sometime like creating a hidden form and then do something to make the database close.

Any help would be appreciated

Which database system is it?

I also have this problem

Can this be done for

MS Access ?

MS SQL Server ?

Depending on how harsly you want to do it in SQL Server, you can just kill all connections as you detach the database.

Otherwise - more "soft", depending on how people log in (if they log in via an application you control), then you can perhaps simply just kill connections to the database (sql server):
script for "kill active connections" and then prevent them from logging in.

However be careful doing something like this, because of how data can be inconsistent. It's much nicer to simply have an application the users go through control the connections of the database.