转自 http://blog.youkuaiyun.com/CompassButton/archive/2009/07/23/4374455.aspx
1、Five Ways to Enhance BI Functionality Using ABAP-- Part I--Data Extraction
https://wiki.sdn.sap.com/wiki/display/BI/Five+Ways+to+Enhance+BI+Functionality+Using+ABAP--+Part+I--Data+Extraction
2、Five Ways to Enhance BI Functionality Using ABAP--Part II--Data Staging
https://wiki.sdn.sap.com/wiki/display/BI/Five+Ways+to+Enhance+BI+Functionality+Using+ABAP--Part+II--Data+Staging
3、Five Ways to Enhance BI Functionality Using ABAP--Part III--BEx Variables
https://wiki.sdn.sap.com/wiki/display/BI/Five+Ways+to+Enhance+BI+Functionality+Using+ABAP--Part+III--BEx+Variables
4、Five Ways to Enhance BI Functionality Using ABAP--Part IV--Virtual InfoCubes, Key Figures, and Characteristics
https://wiki.sdn.sap.com/wiki/display/BI/Five+Ways+to+Enhance+BI+Functionality+Using+ABAP--Part+IV--Virtual+InfoCubes%2C+Key+Figures%2C+and+Characteristics
5、 Five Ways to Enhance BI Functionality Using ABAP--Part V--ABAP in Process Chain
https://wiki.sdn.sap.com/wiki/display/BI/Five+Ways+to+Enhance+BI+Functionality+Using+ABAP--Part+V--ABAP+in+Process+Chain