Transactions and Change in Logic Databases: International Seminar on Logic Databases and the Meaning of Change Schloss Dagstuhl, Germany, September 23–27, 1996 and ILPS'97 Post-Conference Workshop on (Trans)Actions and Change in Logic Programming and Deductive Databases, (DYNAMICS'97) Port Jefferson, NY, USA, October 17, 1997 Invited Surveys and Selected Papers