当前位置: Oracle DBA培训网-优技培训 >> 082题库 >

Oracle OCP 19c 认证1Z0-082考试题库(第19题)

Oracle OCP 19c 认证1Z0-082考试题库(第19题)

Oracle OCP 19c 认证1Z0-082考试题库(第19题)-CUUG内部学员版082题库解析

19、choose the best answer Evaluate the following SQL statement:

ALTER TABLE hr.emp

SET UNUSED (mgr_id);

Which statement is true regarding the effect of the above SQL statement?

A) Any views created on the EMP table that include the MGR_ID column would be automatically modified and remain valid.

B) Any constraints defined on the MGR_ID column would be removed by the above command.

C) Any synonym existing on the EMP table would have to be re-created.

D) Any index created on the MGR in column would continue to exist until the DROP UNUSED COLUMNS command is executed.

技术沙龙MORE+

Oracle技术沙龙:【数据保护顶尖技术-MAA】首次全国首播12c MAA技术 云数据库加上MAA技术组成最豪华的技...
Oracle技术沙龙第49期:【Oracle 数据库云技术分享】Oracle技术沙龙第49期:【Oracle 数据库云技术分享】本次技术沙...
Oracle技术沙龙第48期:【Oracle 12c RAC安装】小编:今天讲什么内容呢?以后有什么用呢? 大师:今天讲的是12c...
我要参加技术沙龙