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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?()
A

 It updates the existing SQL profiles with current statistics

B

 It makes the statistics information available to GATHER_STATS_JOB

C

 It initiates the statistics collection process by running GATHER_STATS_JOB

D

 It logs a warning message in the alert log so that the DBA can perform statistics collection manually


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考题 多选题What happens when you run the SQL Tuning Advisor with limited scope?()AAccess pathanalysis is not performed for SQL statements.BSQL structure analysis is not performed for SQL statements.CSQL Profile recommendations are not generated for SQL statements.DStaleness and absence of statistics are not checked for the objects in the SQL Tuning Advisor. In this case, SQL Tuning Advisor produces recommendations based on statistical checks, access path analysis, and SQL structure analysis. SQL profile recommendations are not generated.

考题 单选题Which of the following identifies and creates an index to minimize the DB time for a particular SQL statement?()A  The SGA Tuning AdvisorB  The SQL Access AdvisorC  The SQL Tuning AdvisorD  The Memory Advisor

考题 单选题The SQL Tuning Advisor configuration has default settings in your database instance.  Which recommendation is automatically implemented after the SQL Tuning Advisor is run as part of the automatic maintenance task?()A  statistics recommendationsB  SQL Profile recommendationsC  Index-related recommendationsD  restructuring of SQL recommendations

考题 多选题Which of the following cannot be used as input to the SQL Tuning Advisor?()AA single SQL statement provided by a userBAn existing SQL Tuning Set (STS)CA preprocessed Database Replay workloadDA schema nameESQL statement identified in EM as using excessive resources

考题 单选题Which of the following identifies and creates an index to minimize the DB time for a particular SQL statement?()A The SGA Tuning AdvisorB The SQL Access AdvisorC The SQL Tuning AdvisorD The Memory Advisor

考题 单选题The SQL Tuning Advisor has been configured with default configurations in your database instance. Which recommendation is automatically implemented without the DBA’s intervention after the SQL Tuning Advisor is run as part of the AUTOTASK framework?()A  statistics recommendationsB  SQL profile recommendationsC  index-related recommendationsD  restructuring of SQL recommendations