[otrs] ticket's moves

hi, firstly i apologize for my bad english. i need some help i you could help me. i read all the information about ticket stocked in the table of my database using some sql request, but i don't find where are the information about the moves of the ticket (actualy i only can see the actuel file of the ticket not the precedent). and i need to know in which table their stocked to extract it for the db with a sql request. regards, Louis du Beux ps : if you don't understand what i wrote don't hesitate to tell me, thanks.