<fieldset id="ywcra"></fieldset>

<mark id="ywcra"><label id="ywcra"><bdo id="ywcra"></bdo></label></mark>

1Z0-052單項(xiàng)選擇題每日一練(2019.03.25)

單項(xiàng)選擇題
Which naming method uses the tnsnames.ora file to store the connect descriptor used by the client whileconnecting to the database instance from a remote machine（）
A.Host naming method
B.Local naming method
C.External naming method
D.Directory naming method
單項(xiàng)選擇題
You executed this command to create a temporary table： SQL> CREATE GLOBAL TEMPORARY TABLE report_work_area （startdate DATE， enddate DATE， class CHAR（20））ON COMMIT PRESERVE ROWS； Which statement is true about the rows inserted into the REPORT_WORK_AREA table during atransaction （）
A.The rows stay in the table only until session termination.
B.The rows stay in the table only until the next transaction starts on the table.
C.The rows are visible to all current sessions after the transaction is committed.
D.The rows stay available for subsequent sessions after the transaction is committed
單項(xiàng)選擇題
Identify the memory component from which memory may be allocated for: （）1: Session memory for the shared server 2: Buffers for I/O slaves 3: Oracle Database Recovery Manager (RMAN) backup and restore operations
A.Large Pool
B.Redo Log Buffer
C.Database Buffer Cache
D.Program Global Area （PGA）
單項(xiàng)選擇題
You have two database servers SEMP and SACCT. The database in the SEMP server maintains theemployee information and the database in the SACCT server maintains the accounts payable information.The employees submit the expense reports to the accounts payable department. A user of the accountspayable database wants to extract the employee information from the database in the SEMP server for cross-verification. Which schema object enables the user to access the information from the remote database（）
A.Cluster
B.Database link
C.Mapping table
D.Materialized view
單項(xiàng)選擇題
Given below is a list of scenarios：1） A user terminates his session abnormally.2） The connection between the server and the client application terminates because of a network failure.3） A schema is accidentally dropped.4） The tablespace is accidentally dropped from the database.5） The hard disk gets corrupted and the data files in the disk are lost.6） The database instance abnormally shuts down because of power failure. Which scenarios require DBAintervention to perform recovery（）
A.1， 3， and 6
B.4， 5， and 6
C.3， 4， and 5
D.1， 2， and 6

感谢您访问我们的网站，您可能还对以下资源感兴趣：

国产黄色视屏

视频一区二区无码制服师生国产三级香港三级人妇国产码一区二区在线观看国产伦精品一区二区三区免费观看