单选题In which scenario will you use the Flashback Version Query feature?()A when you want to restore a table that has been dropped from the Recycle BinB when you want to identify the transaction ID of the transaction that deleted some important records from a tableC when you want to recover the schema of a dropped userDwhen you want to restore a dropped tablespace

单选题
In which scenario will you use the Flashback Version Query feature?()
A

 when you want to restore a table that has been dropped from the Recycle Bin

B

 when you want to identify the transaction ID of the transaction that deleted some important records from a table

C

 when you want to recover the schema of a dropped user

D

when you want to restore a dropped tablespace


参考解析

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单选题You are employed as a DBA in an organization. You are informed that the record of EMP_NO 1000 is missing from the SCOTT.EMP table. You are required to identify the user who deleted the record, the SQL statement that will undo the deletion, and the transaction ID of the transaction that deleted the employee record. Which feature will you use to perform the tasks?()A Only the Flashback TableB Both the Flashback Transaction Query and the Flashback Version QueryC Only the Flashback DropD Only the Flashback Version

单选题You want to use the Flashback Transaction Query feature to identify all the changes made to your database within a specific time period. What is a prerequisite for using the Flashback Transaction Query feature?()A You must use automatic undo management in the database.B You must configure OMF in your database.C You must configure ASM for storing the datafiles.D You must multiplex the online redo log file.

单选题On Tuesday, a junior DBA dropped an important application user account, whose schema has important tables. You are asked to recover all the objects in the schema. On investigation, you find that the user account was dropped at 11:00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use?()AFlashback DropBFlashback TableCFlashback DatabaseDFlashback Version QueryEFlashback Transaction Query

单选题In which scenario will you perform a user-managed incomplete recovery?()A when a table is dropped and stored in the Recycle BinBwhen a table is dropped and purged from the Recycle BinC when you are required to recover an existing table to its previous stateD when you are required to view all the versions of a row of an existing table between a specific time period

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 statement is correct?()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.

单选题At the end of the financial year, an accounts accumulation batch is run. This batch updates the company’s accounting records. During the batch run process, some incorrect entries were inserted into the ACCOUNT table. You identified the bug and immediately stopped the batch run process, but 3000 incorrect records were inserted into the ACCOUNT table before the batch process was stopped. You want to recover the table to the state it was at 11:50 P.M. Which flashback feature will you use?()A Flashback DropB Flashback DatabaseC Flashback TableD Flashback Version Query

单选题In which scenario will you perform an incomplete recovery?()A when a table is dropped and stored in the Recycle BinB when all the control files are deletedC when a member of a multiplexed redo log group is droppedD when you are required to recover a table to its previous state

单选题By mistake, you ran the batch job (for updating the BILL_DETAILS table) twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify:  a) A list of changes made along with the transaction identifier of each change.  b) The necessary SQL statements to undo the erroneous changes.  Which option would you choose?()A RMAN only.B Flashback Table only.C Flashback Version Query only.D Flashback Database and Flashback Transaction Query.E Flashback Version Query and Flashback Transaction Query.