ok if that be so then is there any way that i can capture the data in the MLog$ table. because, i have seen while creating the materialized view that the Mlog$ table is purged whenever the refresh process completes and the change is transferred from the master to the repliacted table. the data stays for the interval during the refresh, isn't it? is there any way that i can control the purguing of the table.

regards,
Prasenjit