Answer will be same after convert.
Anybody can describe?
The existence of aggregate tables does not help user queries. Users must access the summary tables, ideally automatically with awareness built into the BI tool or the RDBMS to force the query to be processed in the most efficient way. In recent years, BI vendors have debated if aggregate awareness belongs in the BI tool or in the RDBMS. Business Objects is the only BI tool that has built-in functionality to take advantage of RDBMS aggregate tables in a way that is seamless to users.