sap scr ipts with good source code

这是SAP的开发语言，ABAP数据库操作实例-This is a develop language for sap,ABAP-Database Operate sample.

在SAP业务系统中，大量地使用到了ALV Tree对象，该对象在表格基础上对同类数据进行归类，并对各分类能进行数据汇总-In the SAP business system, a large number of use to the ALV Tree object similar in form based on data classification, and data collection for each category can be