OCP认证052考试最新题库及答案整理-69

69、Which is true about unusable indexes?

A. Rebuilding an unusable index always requires at least twice the space of
the original index

B. Rebuilding an unusable index always allows DML statements on the index’s
table during the rebuild.

C. Rebuilding occurs automatically when an unusable index is chosen by the
optimizer when creating an execution plan

D. Rebuilding an unusable index creates a new segment after dropping the
unusable免费云主机域名 index.

Correct Answer: D

北京CUUG整理，转载请注明，OCP讨论群：569933648 / 836361015

相关推荐: rman 增量备份恢复

rman异机增量备份恢复 https://blog.csdn.net/qq_28766111/article/details/85252754 https://blog.csdn.net/freedompuge/article/details/51897787…