回滚段
第六章管理回滚段
= ... INITIAL = NEXT = 2n 20 ... INITIAL = NEXT = 2n 20 OPTIMAL = x OPTIMAL = y 0 10 20 30 40 扩展比率 范围数 wanghailiang 6—10 建立回滚段 CREATE PUBLIC ROLLBACK SEGMENT rb1 TABLESPACE rbk STORAGE ( INITIAL 100K