071考试既是ocp11g的考试科目,又是ocp12c的考试科目,所以关注的人很多,由于071考试题多变,我们专门收集了近期的071考试原题,并对071考试进行了讲解,分享给大家。
--------------------------------------------
071考试原题-第43题、choose the best answer:
Which statement is true about the Oracle SQL, DELETE and TRUNCATE statements?
A) DELETE but not TRUNCATE statement can be used to remove data from selective columns and rows of a table.
B) DELETE and TRUNCATE statements can have a rollback done to restore data into a table.
C) DELETE and TRUNCATE statements remove all indexes for the tables on which they are performed.
D) DELETE but not TRUNCATE statement can be used to selectively remove rows from a table.
Answer:D
(解析:Truncate 是删除整张表的数据,delete 不能删除某个列的数据,删除的是行的数据)
-----------------------------------------------
OCP解析公开课时间:【每周五晚8点】
OCP解析公开课地址:https://ke.qq.com/course/326223
OCP解析群资料分享:1015267481 验证:ocp
另外,除了OCP公开课,OCM题库直播也同步进行中,OCM最新题库大爆料-【每周四晚8点】,【微信群直播】,可以联系咨询老师进群参与