大数据就业实战培训 Oracle就业实战培训
071考试题库之前是比较稳定的，但随着Oracle的调整，071考试不断的增加新的考题，增加了考试的难度，所以我们专门收集整理了这些考试，并对这些考题进行解析，希望可以对考生有帮助。
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071考试-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)
