Determining the names of tables and whose is using them

Hi All, Let me first appologise if this seems to be an obvious question. I would like to know how onw can determine the names tables and who is using them, using the tbstat and tbcheck commands, or something similar. I can work out the table-name and partnumber from the systables, using the following select statement in dbaccess : SELECT tabname, hex(partnum) FROM systables Any help would be much appreciated, Thanks in advance, Jitinder