API cl_rsda_infoprov_query not reading data from NLS

Hi All,

I am working on a BW 7.4 SP11 system, which is connected to a Sybase IQ NLS system. Data in a DSO is archived and there are still few records in active table of the DSO (I mean data is in both BW Active table & NLS system).

When i try to use the API cl_rsda_infoprov_query=>select to read the data from the infoprovider, i am getting only the records in active table of the DSO and it is not reading the data from NLS. I mean the API call is behaving similar to SELECT query. Below is the code i am trying to use, without any filters.

If I pass I_STORAGE_SELECTION = 'N', to read only NLS data, the API call doesn't bring any data in the output.

TRY.

 

   CALL METHOD cl_rsda_infoprov_query=>select

    

     EXPORTING

       i_infoprov        = c_infoprovider

       I_STORAGE_SELECTION = '*'

    

     CHANGING

       c_t_data  = lt_flexemp.

 

   CATCH cx_rsda_input_invalid

     cx_rsda_access_error.

 

     *Error handling

 

ENDTRY.

Any pointers on the above would be of great help.

Thanks & Regards,

Vishwa