topic RFC_READ_TABLE performance problem in Application Development and Automation Discussions

RFC_READ_TABLE performance problem

hammitou_jack — Tue, 30 Dec 2008 10:45:14 GMT

Hi all,

Iu2019m using the function RFC_READ_TABLE in CRM to reach Data of the table KNB5 form R3. The function works well except that it too slow (20 seconds). Is it possible to optimize the execution time?

Thank you.

Re: RFC_READ_TABLE performance problem

Former Member — Tue, 30 Dec 2008 11:07:46 GMT

Try passing restricting selection criterion in the FM and see if performance improves.

If not run the FM in the source system and analyse the excess time being consumed.

If you feel there can be performance improvement, convert the FM to z-FM and modify accordingly.

Re: RFC_READ_TABLE performance problem

Former Member — Tue, 30 Dec 2008 11:19:51 GMT

You have an option to pass the condition to the Function module, Similer to the where condition part of the select quiry.

Just check for how I have passed the condition ( for the selection ).

w_value1 = '( obj_name LIKE ''Y%'' OR obj_name LIKE ''Z%'' ) AND ( DEVCLASS LIKE ''Y%''' .
      wa_options11-text = w_value1 .
      append wa_options11 to it_options11.
      clear wa_options11.

      w_value1 = 'OR DEVCLASS LIKE ''Z%'' )' .
      wa_options11-text = w_value1 .
      append wa_options11 to it_options11.
      clear wa_options11.

      call function 'RFC_READ_TABLE'
        destination p_serv1
        exporting
          query_table          = 'TADIR'
        tables
          options              = it_options11
          fields               = it_nametab11
          data                 = it_stmp_dokhl1
        exceptions
          table_not_available  = 1
          table_without_data   = 2
          option_not_valid     = 3
          field_not_valid      = 4
          not_authorized       = 5
          data_buffer_exceeded = 6
          others               = 7.

Hope this helps,

Murthy.