【单选题】The plant and equipment account in the records of a company for the year ended 31 December 2012 is shown below: Plant and equipment – cost 2012 $ 2012 ...
【单选题】On Monday, you dropped the DEPT table from your schema and then you re-created the DEPT table in your schema. On Wednesday, you have a requirement to restore the DEPT table from the recycle bin. Which...
A.
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because a table with the name DEPT already exists in your schema.
B.
You can restore the DEPT table by using the Oracle Flashback Drop feature, provided you use the RENAME TO clause.
C.
You cannot restore the DEPT table by using the Oracle Flashback Drop feature because the contents of the recycle bin are purged every 12 hours by default.
D.
You can restore the DEPT table by using the Oracle Flashback Drop feature and a system-generated name will be assigned to the restored table.
【简答题】It is said that the fast pace of our everyday life, as a direct result of the rapid development of telecommunications technology and travel industry, has negative effects on individuals, nations and t...