hi i have many databases, one per month, and i want to delete many of them and the hands in this databases on order to have more space in my laptop how can i do it?
Open the File > Maintain Database Names window. The last field of each entry tells you what file is associated with each database. Write these down and then use the Remove button to remove the entries you no longer use. Then you will have to manually delete the actual database files associated with each entry you removed.
That file contains the hand history text of the hands you have imported into the ptrack database files. If you delete that file and you still have any old databases that you saved you won't be able to reply or export these old hands if you want to. If this isn't a concern to you then yes, you can delete that file.
Yes, it won't impact the stats as those are all stored in the ptrackX.mdb files, it only impacts being able to replay and export the text of old hands.