{ {FROM SCN [=] integer | SCN BETWEEN integer AND integer | UNTIL SCN [=] integer} | {FROM SEQUENCE [=] integer | SEQUENCE [=] integer | SEQUENCE BETWEEN integer AND integer | UNTIL SEQUENCE [=] integer} | {FROM TIME [=] ' date_string ' | TIME BETWEEN ' date_string ' AND ' date_string ' | UNTIL TIME [=] ' date_string '}} [THREAD [=] integer]