053-493

Which three statements about performance analysis by SQL Performance Analyzer are true?
(Choose three.)
A. It detects changes in SQL execution plans.
B. It produces results that can be used to create the SQL plan baseline.
C. The importance of SQL statements is based on the size of the objects accessed.
D. It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
E. It shows only the overall impact on workload and not the net SQL impact on workload.

  SQL 性能分析器比更改之前和之后的 SQL 语句的性能,并生成标识执划或 SQL 语句的性能的任何更改的告。
  修复回SQL 语
  如果 SQL Performance Analyzer 执行的性能分析示回SQL 语句, 可以行更改以该问题。例如,您可以通运行 SQL Tuning Advisor 或使用 SQL 计划基准来修复回SQL。 然后,您可以重复SQL 语句并将其性能与第一次行比程。 重复些步,直到您分析的果感到

原文地址:https://www.cnblogs.com/Babylon/p/7851084.html