单选题You have a long-running process you want to assign to a specific UNDO segment brought online for that express purpose. You are not using automatic UNDO management. What statement can be used for this task? ()AALTER DATABASE BSET TRANSACTION CALTER ROLLBACK SEGMENT DALTER TABLE

单选题
You have a long-running process you want to assign to a specific UNDO segment brought online for that express purpose. You are not using automatic UNDO management. What statement can be used for this task? ()
A

ALTER DATABASE 

B

SET TRANSACTION 

C

ALTER ROLLBACK SEGMENT 

D

ALTER TABLE


参考解析

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单选题You have a long-running process you want to assign to a specific UNDO segment brought online for that express purpose. You are not using automatic UNDO management. What statement can be used for this task? ()AALTER DATABASE BSET TRANSACTION CALTER ROLLBACK SEGMENT DALTER TABLE

单选题You need to maintain a record of all transactions on some tables for at least three years. Automatic undo management is enabled for the database. What must you do accomplish this task?()A Enable supplemental logging for the database.B Specify undo retention guarantee for the databaseC Create Flashback Data Archive in the tablespace where the tables are stored.D Create Flashback Data Archive and enable Flashback Data Archive for specific tables

单选题You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.  Which statement should you use to enable the block change tracking feature?()A ALTER DATABASE ENABLE BLOCK CHANGE TRACKINGB ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE C ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE D ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING

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多选题You work as a database administrator for Certkiller .com. You want to create your database with the automatic undo management feature enable.Which two tasks must you perform to achieve this?()ASet the UNDO_RETENTION parameter to AUTO.BCreate an initial undo segment in undotablespace.CSet the UNDO_RETENTION parameter to 900 or moreDSet the initialization parameter UNDO_MANAGEMENT to AUTOESet the UNDO_MANAGEMENT parameter to the name of an undotablespace