I use the following to identify which tables have changes recorded in a trail file, as well as how many changes each table has…
CMHLDECOMDB01:oracle:cmhecomd1:/u01/app/oracle/acfsmounts/ggate/oracle2/dirdat>strings -a r1000009 | grep ATGDB | sort | uniq -c
6 ATGDB_CORE.DAS_ID_GENERATOR
21873 ATGDB_CORE.DCSPP_ORD_ABANDON
10937 ATGDB_CORE.DCS_USER_ABANDONED
CMHLDECOMDB01:oracle:cmhecomd1:/u01/app/oracle/acfsmounts/ggate/oracle2/dirdat>