单项选择题
A.Summarized queries
B.Granular transactions
C.Voluminous historical data
D.Heterogeneous data sources
单项选择题 Which of the following is the lowest cost DB2 product that can be legally installed on a Linux server that has 6 CPUs?（）
单项选择题 Which of the following tools can be used to schedule a backup operation that is to be run every Sunday evening?（）
单项选择题 Which of the following tools can make recommendations for indexes and/or MQTs to improve the performance of DB2 applications?（）