ITPub博客

首页 > Linux操作系统 > Linux操作系统 > 047试题请教

047试题请教

原创 Linux操作系统 作者:taylorgao 时间:2010-09-26 12:36:07 0 删除 编辑
93. The ORDERS table belongs to the user OE. OE has granted the SELECT privilege on the ORDERS
table to the user HR.
Which statement would create a synonym ORD so that HR can execute the following query successfully?
SELECT * FROM ord;
A. CREATE SYNONYM ord FOR orders; This command is issued by OE.
B. CREATE PUBLIC SYNONYM ord FOR orders; This command is issued by OE.
C. CREATE SYNONYM ord FOR oe.orders; This command is issued by the database administrator.
D. CREATE PUBLIC SYNONYM ord FOR oe.orders; This command is issued by the database administrator.
Answer: D

答案B为什么不对,因为OE不一定有create public synonym权限吗?
请各位指教。

来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/88933/viewspace-675660/ ,如需转载,请注明出处,否则将追究法律责任。

上一篇: 047试题请教
下一篇: 047试题请教
请登录后发表评论 登录
全部评论

注册时间:2010-09-26

  • 博文量
    13
  • 访问量
    21871