Dears: case 1. In batch time (22:00 ~ 09:00) batch jobs drop table used 1 second but after 09:00 user begin use the teradata database drop table used 10 minutes. I used PMON monitor these job no lock and the CPU usage same as the batch time near 94%.
case 2. In batch time batch jobs will not lock dbc.accessrights but the same jobs after 09:00 if lock abc.accessrights then I move hight CPU Job to penalty box let the CPU usage down to 10% during two hours but these batch jobs still lock can't release.