How can i change/move a xwiki page

Hello, my xwiki system has several documents with incorrect names eg.: A.B.C.index should be A.B.D.index which datafields (and what tables) do i have to change in order to achieve a page move? i tried to modify the xwd_fullname, xwd_web, xwd_parent and xwd_name columns in the XWIKIDOC table but it doesnt work. I also checked the data within XWIKILINKS. I was also unable to determine where xwiki get its document ids (XWD_ID) at startup. Maybe someone could point me to the correct sources :) can somebody help me? g, kris