Close database shortcut

I use many databases. I’d like to close them when not in use. Using the mouse to select file–>Close database–>then the database I want to close is a drag (aren’t I spoiled?). Is there a keyboard shortcut where I can just select the database and close it directly?

KICK

Is there a solution? I need to close and open many db every half hour,
drives me crazy

Thanks for the update

Cmd-Ctrl-Shift-W closes the current database.

It is very easy to set up a macro in Keyboard Maestro, or BetterTouchTool, or Automator, or other utilities, to do this, File > Close Database > My Database is a menu item and can be controlled via automation.