When thinking about Business Intelligence, database developers consider buzz words like data warehouse or ETL. But Business Intelligence is not only about analyzing data from a data warehouse. There is another set of Business Intelligence applications that require multiuser write-back of data, sometimes even on aggregated levels. I am talking about applications for planning and budgeting. What methods must a database provide in order to support a simultaneous bottom-up and top-down budgeting process? What kind of calculation engine is needed for statutory consolidation in a multicurrency environment? How shall a database handle time series analysis when meta data like organization structure is changing over time? This talk will introduce a new community project adding a proven multidimensional storage and calculation engine (MOLAP) to MySQL.