单项选择题
You want to enable archiving on your database. Presently， the database is running in NOARCHIVELOG mode.Given below are the steps to accomplish the task in random order：
1. Shut down the instance.
2. Execute the ALTER DATABASE ARCHIVELOG command.
3. Start up the instance and mount the database.
4. Set the DB_RECOVERY_FILE_DEST initialization parameter to $ORACLE_HOME/dest_1.
5. Open the database.
Which is the correct sequence of steps for accomplishing the task（）
A.4， 1， 3， 2， 5
B.1， 3， 4， 5， 2
C.1， 3， 2， 5； 4 not required
D.4， 1， 5， 2； 3 not required
E.1， 3， 4， 5； 2 not required
相关考题
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单项选择题
WhichstatementistrueabouttheUNDO_RETENTIONparameterwhenretentionguaranteeisnotenabled（）
A.It is the time period after which the undo data becomes obsolete.
B.It is the time period after which the committed undo data would be transferred to a temporary tablespace.
C.It is the minimum time period up to which the committed undo data would be retained if free undo space isavailable.
D.It is the time period after which the undo data is transferred to the Flash Recovery Area to provide readconsistency. -
单项选择题
View the Exhibit and examine the undo tablespace attributes. Your database instance is experiencing a largevolume of transactions from non-DBA users in the last one hour. The undo tablespace UNDOTBS1 is full withtransactions and no transaction was committed more than one hour ago. The database has two more undotablespaces. What happens to the new DML operations in this scenario（）
A.The DML commands will fail.
B.The undo data generated by the DML is stored in one of the two other undo tablespaces.
C.The undo data generated by the DML will overwrite the extents that contain committed undo data.
D.The undo data generated by the DML is stored in the SYSTEM undo segment of the SYSTEM tablespace -
单项选择题
You want to access employee details contained in flat files as part of the EMPLOYEE table. You plan to add anew column to the EMPLOYEE table to achieve this. Which data type would you use for the new column（）
A.CLOB
B.BLOB
C.BFILE
D.LONG RAW
