【单选题】You need to make structural changes to the cube. You also need to ensure that appropriate aggregations are created after the changes are made. What should you do?()
A.
Record a weeks user activity by using SQL Profiler. Apply structural changes. Replay the activity and then run the Usage Based Optimization Wizard.
B.
Apply structural changes. Run the Database Engine Tuning Advisor.
C.
Apply structural changes. Run the Usage Based Optimization Wizard.
D.
Record a weeks user activity by using SQL Profiler. Apply structural changes. Run the Database Engine Tuning Advisor.
【判断题】轻型燃气轮机,又称航机改型燃气轮机:以航空涡轮发动机为基础发展而来;转速通常为8000∼30000RPM,一般需设减速装置驱动离心压缩机。Light gas turbine, also known as aircraft variant gas turbine: based on the development of aviation turbine engine; Speed is usuall...