ABAP Select data from SAP table RFCADOC into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFCADOC table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to RFCADOC. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the RFCADOC table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_RFCADOC TYPE STANDARD TABLE OF RFCADOC,
      WA_RFCADOC TYPE RFCADOC,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <RFCADOC> TYPE RFCADOC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFCADOC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFCADOC
  INTO TABLE IT_RFCADOC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFCADOC
*  INTO TABLE @DATA(IT_RFCADOC2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_RFCADOC INDEX 1 INTO DATA(WA_RFCADOC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFCADOC ASSIGNING <RFCADOC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFCADOC>-MANDT = 1.
<RFCADOC>-FREIGHTCOSTALLOCATIONDOCUMENT = 1.
<RFCADOC>-SETTLMTDOCTYPE = 1.
<RFCADOC>-SETTLMTDOCCAT = 1.
<RFCADOC>-SETTLMTPROCESSTYPE = 1.

ENDLOOP.

LOOP AT IT_RFCADOC INTO WA_RFCADOC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFCADOC-SETTLMTPROCESSCAT, sy-vline,
  WA_RFCADOC-LOGISTICSDATAENTRYCAT, sy-vline,
  WA_RFCADOC-SETTLMTCAT, sy-vline,
  WA_RFCADOC-POSTINGDATE, sy-vline,
  WA_RFCADOC-FRTCOSTALLOCACCTGTRANSFSTS, sy-vline,
  WA_RFCADOC-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFCADOC you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_RFCADOC TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_RFCADOC INTO WA_RFCADOC.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field FREIGHTCOSTALLOCATIONDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFCADOC-FREIGHTCOSTALLOCATIONDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFCADOC-FREIGHTCOSTALLOCATIONDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVSDFRTCOSTALLOCDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFCADOC-RVSDFRTCOSTALLOCDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFCADOC-RVSDFRTCOSTALLOCDOC.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RFCADOC_STR, 
MANDT TYPE STRING,
FREIGHTCOSTALLOCATIONDOCUMENT TYPE STRING,
SETTLMTDOCTYPE TYPE STRING,
SETTLMTDOCCAT TYPE STRING,
SETTLMTPROCESSTYPE TYPE STRING,
SETTLMTPROCESSCAT TYPE STRING,
LOGISTICSDATAENTRYCAT TYPE STRING,
SETTLMTCAT TYPE STRING,
POSTINGDATE TYPE STRING,
FRTCOSTALLOCACCTGTRANSFSTS TYPE STRING,
DOCUMENTDATE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
SETTLMTAPPLSTS TYPE STRING,
SETTLMTAPPLSTSGRP TYPE STRING,
PRICINGPROCEDURE TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
FRTCOSTALLOCDOCCURRENCY TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
EXCHANGERATEDATE TYPE STRING,
FRTCOSTALLOCDOCTOTGROSSAMOUNT TYPE STRING,
FRTCOSTALLOCDOCTOTALNETAMOUNT TYPE STRING,
FRTCOSTALLOCDOCISREVERSED TYPE STRING,
RVSDFRTCOSTALLOCDOC TYPE STRING,
FRTCOSTALLOCDOCACTIVITYREASON TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
SETTLMTCLASSIFICATIONCAT TYPE STRING,
FISCALPERIOD TYPE STRING,
FRTCOSTALLOCDOCINCMPLTNSRSN TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
FRTCOSTALLOCBUSPROCCAT TYPE STRING,
APPLELMNTBEHAVIORGRP TYPE STRING,
JOURNALENTRYCREATIONDATE TYPE STRING,
JOURNALENTRYCREATIONTIME TYPE STRING,
FRTCOSTALLOCDOCCHANGESTATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFCADOC_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_RFCADOC_STR-MANDT sy-vline 
WA_RFCADOC_STR-FREIGHTCOSTALLOCATIONDOCUMENT sy-vline 
WA_RFCADOC_STR-SETTLMTDOCTYPE sy-vline 
WA_RFCADOC_STR-SETTLMTDOCCAT sy-vline 
WA_RFCADOC_STR-SETTLMTPROCESSTYPE sy-vline 
WA_RFCADOC_STR-SETTLMTPROCESSCAT sy-vline 
WA_RFCADOC_STR-LOGISTICSDATAENTRYCAT sy-vline 
WA_RFCADOC_STR-SETTLMTCAT sy-vline 
WA_RFCADOC_STR-POSTINGDATE sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCACCTGTRANSFSTS sy-vline 
WA_RFCADOC_STR-DOCUMENTDATE sy-vline 
WA_RFCADOC_STR-DOCUMENTREFERENCEID sy-vline 
WA_RFCADOC_STR-ASSIGNMENTREFERENCE sy-vline 
WA_RFCADOC_STR-SETTLMTAPPLSTS sy-vline 
WA_RFCADOC_STR-SETTLMTAPPLSTSGRP sy-vline 
WA_RFCADOC_STR-PRICINGPROCEDURE sy-vline 
WA_RFCADOC_STR-PRICINGDOCUMENT sy-vline 
WA_RFCADOC_STR-COMPANYCODE sy-vline 
WA_RFCADOC_STR-PURCHASINGORGANIZATION sy-vline 
WA_RFCADOC_STR-PURCHASINGGROUP sy-vline 
WA_RFCADOC_STR-SALESORGANIZATION sy-vline 
WA_RFCADOC_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_RFCADOC_STR-DIVISION sy-vline 
WA_RFCADOC_STR-SALESOFFICE sy-vline 
WA_RFCADOC_STR-SALESGROUP sy-vline 
WA_RFCADOC_STR-CREATEDBYUSER sy-vline 
WA_RFCADOC_STR-CREATIONDATE sy-vline 
WA_RFCADOC_STR-CREATIONTIME sy-vline 
WA_RFCADOC_STR-LASTCHANGEDATE sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCCURRENCY sy-vline 
WA_RFCADOC_STR-EXCHANGERATE sy-vline 
WA_RFCADOC_STR-EXCHANGERATETYPE sy-vline 
WA_RFCADOC_STR-EXCHANGERATEISFIXED sy-vline 
WA_RFCADOC_STR-EXCHANGERATEDATE sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCTOTGROSSAMOUNT sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCTOTALNETAMOUNT sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCISREVERSED sy-vline 
WA_RFCADOC_STR-RVSDFRTCOSTALLOCDOC sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCACTIVITYREASON sy-vline 
WA_RFCADOC_STR-PAYMENTREFERENCE sy-vline 
WA_RFCADOC_STR-SETTLMTCLASSIFICATIONCAT sy-vline 
WA_RFCADOC_STR-FISCALPERIOD sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCINCMPLTNSRSN sy-vline 
WA_RFCADOC_STR-INCOTERMSVERSION sy-vline 
WA_RFCADOC_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_RFCADOC_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_RFCADOC_STR-INCOTERMSLOCATION1 sy-vline 
WA_RFCADOC_STR-INCOTERMSLOCATION2 sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCBUSPROCCAT sy-vline 
WA_RFCADOC_STR-APPLELMNTBEHAVIORGRP sy-vline 
WA_RFCADOC_STR-JOURNALENTRYCREATIONDATE sy-vline 
WA_RFCADOC_STR-JOURNALENTRYCREATIONTIME sy-vline 
WA_RFCADOC_STR-FRTCOSTALLOCDOCCHANGESTATE sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.