ITPub博客

首页 > 数据库 > Oracle > Oracle 11G OCP 1Z0-052 03

Oracle 11G OCP 1Z0-052 03

原创 Oracle 作者:LuiseDalian 时间:2014-06-04 05:58:15 0 删除 编辑
(3)While observing the index statistics, you find that an index is highly fragmented, thereby resulting in poor database performance.

Which option would you use to reduce fragmentation without affecting the users who are currently using the index?

A. Validate the index structure using the ANALYZE...INDEX command.

B. Rebuild the index using the ALTER INDEX..REBUILD ONLINE command.

C. Change the block space utilization parameters using the ALTER INDEX command.

答案:(B)

来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/17013648/viewspace-1175060/ ,如需转载,请注明出处,否则将追究法律责任。

请登录后发表评论 登录
全部评论

注册时间:2012-02-06

  • 博文量
    1986
  • 访问量
    6040940