单项选择题
A junior level Database Administrator erroneously deleted the database alert log while users were accessing the database. Which action should you take to recover the alert log？（）
A. Do nothing.
B. Restart the database.
C. Perform recovery on the database.
D. Restore the alert log from the last backup.
相关考题
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单项选择题
YouaremaintainingthePRODdatabaseofNetFxCorporation.YousetthevalueoftheSQL_TRACEparametertoTRUE.Whatwillbetheimpactofthissetting？（）
A. The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the USER_DUMP_DEST directory.
B. The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the USER_DUMP_DEST directory.
C. The SQL trace facility will generate the performance statistics for all the SQL statements for an instance and write them in the BACKGROUND_DUMP_DEST directory.
D. The SQL trace facility will generate the performance statistics for all the SQL statements for a session and write them in the BACKGROUND_DUMP_DEST directory. -
单项选择题
YouaremaintaininganOLTPdatabaseinOracle10g.YousetthevalueoftheLOG_ARCHIVE_TRACEparametertozero.Whatistheimpactofthissetting？（）
A. The trace files will be disabled only for a specific session.
B. Tracing will be disabled for a client identifier.
C. Tracing will be disabled only for the ARCn process.
D. The SQL Trace facility will be disabled for the instance. -
单项选择题
YouaremaintaininganOLTPdatabaseinOracle10g.Youfindthatthedatabaseisgeneratingalargenumberoftracefiles.YoudecidetodisablethetracefilesgeneratedbytheARCnbackgroundprocess.WhichactionwillenableyoutodisablethetracefilesgeneratedbytheARCnbackgroundprocess？（）
A. Remove the LOG_ARCHIVE_DEST parameter from the init.ora file.
B. Set the value of the SQL_TRACE parameter to FALSE in the init.ora file.
C. Use the DBMS_MONITOR.SESSION_TRACE_DISABLE procedure.
D. Set the value of the LOG_ARCHIVE_TRACE initialization parameter to zero.
