This is not an area of ClipMate that end-users will generally access. But you may be asked by our technical support people to go to this window and enter a command, to troubleshoot or correct some unforeseen data problem (data problems that ARE foreseen, have already been corrected, of course!), or possibly optimize your database for a particular data type.
Unless you've been directed here by tech support, you should probably leave it alone.
Be careful - You can easily destroy all of your data with this function.
Note: If you are using multiple databases, you should first select a collection within the database that you're interested in. That'll set the "current database", and the SQL window will know which database you want to talk to. You can see the name of the current database in the upper-left of the window.