单项选择题
Note the following points describing various utilities in Oracle Database 1g：1. It enables the high-speed transfer of data from one database to another.
2. It provides a complete solution for the backup， restoration， and recovery needs of the entire database.3. It enables the loading of data from an external file into an Oracle database.4. It provides a tape backup management for the Oracle ecosystem.
Which point describes Oracle Secure Backup（）
A.1
B.2
C.3
D.4
E.1， 2， and 4
F.1， 2， 3， and 4
相关考题
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单项选择题
You executed the following command to perform a backup of the USERS tablespace：SQL> ALTER TABLESPACE users BEGIN BACKUP；ALTER TABLESPACE users BEGIN BACKUP* ERROR at line 1： ORA-01123： cannot start online backup； media recovery not enabled What could be the reason for this error（）
A.The MTTR Advisor is disabled.
B.The database is in NOARCHIVELOG mode.
C.The tablespace is already in backup mode.
D.The Flash Recovery Area is not configured -
单项选择题
The TRANS_SUMMARY table contains product-wise transaction details that get updated with every transactionin the system. Each row has cumulative transaction details of a single product and every product is identified bya product code， which is the primary key.As part of the archival process， the company wants to transfer therows in the TRANS_SUMMARY table to the TRANS_SUMMARY_DUP table at the end of every quarter of theyear. Along with existing products， the company deals with many new products during every quarter. Whichmethod is best suited for this quarterly data transfer（）
A.Using the MERGE command
B.Using the SQL*Loader utility
C.Using the correlated UPDATE command
D.Using the INSERT command to perform bulk operation -
多项选择题
Whichtwostatementsaboutthebackgroundprocessofthedatabasewriteraretrue（）
A.It is possible to have multiple database writers in an Oracle instance.
B.It writes dirty buffers， if any， to data files whenever a checkpoint occurs.
C.It writes dirty buffers， if any， to data files whenever a transaction commits.
D.It writes dirty buffers， if any， to data files before the log writer （LGWR） writes
