【ocp-12c】最新Oracle OCP-071考試題庫（42題）
阿新 • • 發佈：2019-02-27
ora cat UNC trunc and delete table rom done 42、(9-1)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 是刪除整張表的數據，delete 不能刪除某個列的數據，刪除的是行的數據)
【ocp-12c】最新Oracle OCP-071考試題庫（42題）