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You query the ORDERS table and discover that order number 1101 is missing. One of your reports， generated at 5：00 A.M. on April 23， 2005 using Oracle Reports， includes this order number in the output. You have inserted 100 new orders into the ORDERS table since generating this report. Which flashback technology would you use to recover order number 1101 into the ORDERS table without losing the 100 orders that you added after the report was generated？（）
- A、 Flashback Table
- B、 Flashback Query
- C、Flashback Version Query
- D、 Flashback Transaction Query
参考答案
更多 “You query the ORDERS table and discover that order number 1101 is missing. One of your reports， generated at 5：00 A.M. on April 23， 2005 using Oracle Reports， includes this order number in the output. You have inserted 100 new orders into the ORDERS table since generating this report. Which flashback technology would you use to recover order number 1101 into the ORDERS table without losing the 100 orders that you added after the report was generated？（） A、 Flashback TableB、 Flashback QueryC、Flashback Version QueryD、 Flashback Transaction Query” 相关考题
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单选题You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）A
VERSIONS_STARTSCNB
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考题
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
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REF cursor query. B
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单选题Which MySQL utility program should you to process and sort the slow Query log based on query time or average query time?（）A
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Recreate the query and default the layout. B
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Query and manually change the layout to save the boiler plate. D
Alter the query and make no further change.
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单选题You remotely monitor several domain controllers. You run winrm.exe quickconfig on each domain controller. You need to create a WMI script query to retrieve information from the bios of each domain controller. Which format should you use to write the query（）A
XrMLB
XMLC
WQLD
HTML
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Add an XML index to the table that contains the product data.B
Add the XSINIL argument to the ELEMENTS directive in the query.C
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单选题You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used. Which method would you follow to achieve this？（）A
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enable index monitoring and query the DBA_INDEXES viewC
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单选题You need to resolve the blocking issue that is affecting the performance of the CRM system. What should you do?（）A
Replace the named query with an SQL view.B
Set the transaction isolation level to serializable in the named query.C
Set the source database to use snapshot isolation.D
Set the transaction isolation level to repeatable read in the named query.
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单选题View the Exhibits. You performed operations on the DEPT4 table as shown in the Exhibit. When you perform the FlashbackVersions Query， you find that the first two updates are not listed. What could be the reason？（）A
The row movement is not enabled on the table.B
The first two updates were not explicitly committed.C
The Flashback Versions Query lists only the most recent update.D
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考题
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 onlyB
Flashback Table onlyC
Flashback Versions Query onlyD
Flashback Database and Flashback Transaction QueryE
Flashback Versions Query and Flashback Transaction Query
考题
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.
考题
单选题You are required to flashback your database. You want to find the amount of flashback data generated since the database was opened. Which task will you perform to obtain the required information？（）A
Query the V$FLASHBACK_DATABASE_LOG view.B
Query the V$FLASHBACK_DATABASE_STAT view.C
Check the value of the DB_FLASHBACK_RETENTION_TARGET initialization parameter.D
Query the V$RECOVERY_FILE_DEST view.
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