How to compare data in two data sources ?

Question

Hi,
Avalaibilty : Two data Souces 1) Based on standard data available from External agencies ( FLAT FILE )
                                                  2) Generic Data Source having Source system as R3 Server.
Requirement : To write a transfer routine such that each data transaction in the data field of R3 servers compares itself to the the respective data available in the external data source and updates the Infoprovider ( DSO ) accordingly .
Exact problem : I want to check the no. of employees in my company that are using travel funds more than the iNdustry standard for the respective position and also if they are spending more than Industry standard altogether ( OR  Conditioon ) .
What would be the structure of the Routines ? and how to comparre
Mrinal

Answer 1

Hi,
Below logic can be used:
Load the flat file data in DSO2. Then compare and insert the matching value a temp table TABLE1.
SELECT <KF1>
           FROM <DSO1> INTO TABLE <TABLE1>
           WHERE <KF1> = <DSO2>/<KF2>;
Then insert the contents of the temp table into the required CUBE/DSO.