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多选题
You are the Database Administrator （DBA） of your company. You execute the following statement on an Oracle 10g instance： SQL> ALTER SYSTEM SWITCH LOGFILE； Which two tasks are performed when the statement is executed？ （）
A
The DBWn process writes to the datafile.
B
Changes in the background process are recorded.
C
The log file is updated with the current SCN number.
D
The System Change Number （SCN） is recorded in the control file.
E
The changes to the listener configuration in the listener.ora file are recorded.
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更多 “多选题You are the Database Administrator （DBA） of your company. You execute the following statement on an Oracle 10g instance： SQL ALTER SYSTEM SWITCH LOGFILE； Which two tasks are performed when the statement is executed？ （）AThe DBWn process writes to the datafile.BChanges in the background process are recorded.CThe log file is updated with the current SCN number.DThe System Change Number （SCN） is recorded in the control file.EThe changes to the listener configuration in the listener.ora file are recorded.” 相关考题
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You are the Database Administrator （DBA） of your company. You execute the following statement on an Oracle 10g instance： SQL ALTER SYSTEM SWITCH LOGFILE； Which two tasks are performed when the statement is executed？ （）A、 The DBWn process writes to the datafile.B、 Changes in the background process are recorded.C、 The log file is updated with the current SCN number.D、 The System Change Number （SCN） is recorded in the control file.E、 The changes to the listener configuration in the listener.ora file are recorded.
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考题
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考题
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考题
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考题
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The sp_executesql batches are not being recovered from the procedure cache.B
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One new stored procedure is created by a database administrator.D
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考题
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DBCC DBREINDEXB
SELECT * FROM sys.dm_db_index_physical_statsC
DBCC INDEXDEFRAGD
SELECT * FROM sys.indexes
考题
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A stored procedure should be created， and changes are disallowed by the procedure to the Price column that violates company policy.B
On the Price column， a check constraint should be created， and a specified minimum value is required by the check constraint.C
A trigger should be created， and changes are rolled back by the trigger to the Price column that violates company policy.D
On the Price column， a foreign key constraint is created to a table that valid prices are included.
考题
单选题You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode and you want to perform a backup. Which type of backup would be appropriate in this case？ （）A
Hot backupB
Online backupC
consistent backupD
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inconsistent backup
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