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
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You plan to use Flashback Drop feature to recover a dropped table SALES_EMP. No other table with the same name exists in the schema.You query RECYCLEBIN and find multiple entries for the SALES_EMP table as follows, You then issue the following statement to recover the table:SQL FLASHBACK TABLE sales_emp TO BEFORE DROP;What would be the outcome of the precedent statement?()A. It retrieves the latest version of the table from the recycle binB. It retrieves the oldest version of the table from the recycle binC. It retrieves the version of the table for which undo information is availableD. It returns an error because the table name is not specified as per the names in the OBJECT_NAME column
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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.
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.
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In which scenario will you use the Flashback Transaction Query feature?()A、 when you want to restore an important table that is dropped from the Recycle BinB、 when you want to obtain the SQL statements to undo the deletion of some important records from a table by a transactionC、when you want to restore a dropped user’s schemaD、 when a row of a table is updated many times within a specific time period and you want all the versions of the row in the specified time period
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单选题In which scenario do you use the Flashback Database feature?()A when a table is dropped and you restore it from the Recycle BinB when a user’s schema is dropped and you recover the user’s schemaC when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestampD when a row of a table is updated frequently and committed, and you view all the versions of the row within a specific duration
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?()A Flashback DropB Flashback TableC Flashback DatabaseD Flashback Version QueryE Flashback Transaction Query
单选题You are working on an Oracle Database 10g database that operates in the ARCHIVELOG mode. At 06:00 p.m., you discovered that a table in the SYSTEM tablespace that does not belong to the data dictionary was dropped at 03:00 p.m. What would you do to recover the table?()A use the Flashback Transaction Query feature to identify the relevant SQL statement and use it to undrop the tableB restore the entire database from the most recent backup and open itC recover the table by using the Flashback Table featureD perform point-in-time recovery to recover the table
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.