A.What are you?
B.What can you do?
C.What can support you?
D.What you want?
A.For what did he ask
B.What did he ask for
C.What did he ask
D.For what did he ask for
What is a logical data mapping and what does it mean to the ETL team?
什么是逻辑数据映射?它对ETL项目组的作用是什么?