---

When executing a SQL workload，you choose to generate execution plans only， without collecting execution statistics.  Which two statements describe the implications of this？（）
A: It produces less accurate results of the comparison analysis.
B: It automatically calls the SQL Tuning Advisor for recommendations.
C: It shortens the time of execution and reduces the impact on system resources.
D: Only the changes in the execution plan，and not performance regression，are detected.

---

出自：Oracle认证

显示答案