单选题You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）Arun Segment AdvisorBrun SQL Tuning Advisor on top SQL statementsCrun the Automatic Workload Repository （AWR） reportDrun the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements
单选题
You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）
A
run Segment Advisor
B
run SQL Tuning Advisor on top SQL statements
C
run the Automatic Workload Repository （AWR） report
D
run the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements
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单选题You received complaints about the degradation of SQL query performance. You identified top SQL queries that consume time. What would be your next step to find out recommendations about statistics collection and restructuring of the SQL statement to improve query performance？（）Arun Segment AdvisorBrun SQL Tuning Advisor on top SQL statementsCrun the Automatic Workload Repository （AWR） reportDrun the Automatic Database Diagnostic Monitor （ADDM）on top SQL statements
单选题A new report process containing a complex query is written, with high impact on the database. You wantto collect basic statistics about query, such as the level of parallelism, total database time, and the number of I/O requests. For the database instance STATISTICS_LEVEL, the initialization parameter is set to TYPICAL and theCONTROL_MANAGEMENT_PACK_ACCESS parameter is set to DIAGNOSTIC+TUNING. What should you do to accomplish this task?（）AExecute the query and view Active Session History (ASH) for information about the query.BEnable SQL trace for the query.CCreate a database operation, execute the query, and use the DBMS_SQL_MONITOR. REPORT_SQL_MONITOR function to view the report.DUse the DBMS_APPLICATION_INFO.SET_SESSION_LONGOPS procedure to monitor query execution and view the information from the V$SESSION_LONGOPS view.
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单选题Which statement is true when you run the SQL Tuning Advisor with limited scope？（）AAccess path analysis is not performed for the SQL statements.BSQL structure analysis is not performed for the SQL statements.CSQL Profile recommendations are not generated for the SQL statements.DThe staleness and absence of the statistics are not checked for the objects in the query supplied to the SQL Tuning Advisor.
单选题Automatic Shared Memory Management is disabled for your database instance. You realize that thereare cases of SQL statements performing poorly because of repeated parsing activity， resulting indegradation of performance. What would be your next step to improve performance？ （）ARun the SQL Access Advisor.BRun the Memory Advisor for the sga.CRun the Memory Advisor for the pga.DRun the Memory Advisor for the shared pool.ERun the Memory Advisor for the buffer cache.
单选题While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?（）AIt updates the existing SQL profiles with current statisticsBIt makes the statistics information available to GATHER_STATS_JOBCIt initiates the statistics collection process by running GATHER_STATS_JOBDIt logs a warning message in the alert log so that the DBA can perform statistics collection manually
单选题While tuning a SQL statement, the SQL Tuning Advisor finds an existing SQL profile for the statement that has stale statistics available. What would the optimizer do in this situation?（）AIt updates the existing SQL profiles with current statistics.BIt makes the statistics information available to GATHER_STATS_JOBCIt initiates the statistics collection process by running GATHER_STATS_JOBDIt logs a warning message in the alert log so that the DBA can perform statistics collection manually.
单选题You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A Memory AdvisorB Segment AdvisorC SQL Access AdvisorD Automatic Workload Repository （AWR）E Automatic Database Diagnostic Monitor （ADDM）
单选题Automatic Shared Memory Management is disabled for your database instance. You realize that there arecases of SQL statements performing poorly because of repeated parsing activity， resulting in degradation ofperformance. What would be your next step to improve performance（）ARun the SQL Access AdvisorBRun the Memory Advisor for the sga.CRun the Memory Advisor for the pga.DRun the Memory Advisor for the shared pool.ERun the Memory Advisor for the buffer cache
单选题You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance which contains a database. Now your company CIO assigns a task to you. You have to check the performance of the SQL Server 2008 instance. You have to find out which common language runtime (CLR) queries takes the longest-running time. So in the options below, which dynamic management view should you choose to use?（）Asys.dm_os_wait_stats Bsys.dm_exec_requests Csys.dm_exec_sessions Dsys.dm_exec_query_stats
单选题Your database supports a DSS workload that involves the execution of complex queries: Currently, the library cache contains the ideal workload for analysis. You want to analyze some of the queries for an application that are cached in the library cache. What must you do to receive recommendations about the efficient use of indexes and materialized views to improve query performance?（）ACreate a SQL Tuning Set (STS) that contains the queries cached in the library cache and run the SQL Tuning Advisor (STA) on the workload captured in the STS.BRun the Automatic Workload Repository Monitor (ADDM).CCreate an STS that contains the queries cached in the library cache and run the SQL Performance Analyzer (SPA) on the workload captured in the STS.DCreate an STS that contains the queries cached in the library cache and run the SQL Access Advisor on the workload captured in the STS.