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Generic Extraction Using FM reading Multiple DSO's

Hi Experts,

I have a requirement to create a generic Data source based on FM n BW (not in ECC) based on a DSO( lest call ZDSO1).

I am using RSAX_BIW_GET_DATA templet.

I have created a Extract Struct in SE11 based on active table of the DSO, in the Extract Struc i have added additional field called Delta Flag. This flag will be used in executing the the IP/DTP.

We have to drop data from the above DSO1 and do a reload (Init) from underlying DSO(s), and from next time on it will be a Pseudo delta.

If this Delta flag is BLANK (Init/Full Load) my code should read from DSO2 (Only once or if a re-load is required ever), else it should read from DSO3 (Pseudo delta).

I am struggling to write this code in the function module, don't know how to read this Delta field.

In the FM Tables E_T_Data i have given the Extract Struct created above.

Can someone please help me in achieving this?. Where do we capture this delta field?.

I know this is not the usual practice to ctreate DS in BW based on DSO.

Your help is appreciated. Thanks in advance.



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