ABAP Select data from SAP table RFKORD_S_RTAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFKORD_S_RTAB 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 RFKORD_S_RTAB. 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 RFKORD_S_RTAB 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_RFKORD_S_RTAB TYPE STANDARD TABLE OF RFKORD_S_RTAB,
      WA_RFKORD_S_RTAB TYPE RFKORD_S_RTAB,
      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: <RFKORD_S_RTAB> TYPE RFKORD_S_RTAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKORD_S_RTAB
*  INTO TABLE @DATA(IT_RFKORD_S_RTAB2).
*--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_RFKORD_S_RTAB INDEX 1 INTO DATA(WA_RFKORD_S_RTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKORD_S_RTAB>-BUKRS = 1.
<RFKORD_S_RTAB>-BSTAT = 1.
<RFKORD_S_RTAB>-WAERS = 1.
<RFKORD_S_RTAB>-RAART = 1.
<RFKORD_S_RTAB>-OPSUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKORD_S_RTAB-RAST1, sy-vline,
  WA_RFKORD_S_RTAB-RAST2, sy-vline,
  WA_RFKORD_S_RTAB-RAST3, sy-vline,
  WA_RFKORD_S_RTAB-RAST4, sy-vline,
  WA_RFKORD_S_RTAB-RAST5, sy-vline,
  WA_RFKORD_S_RTAB-RAST6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKORD_S_RTAB 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_RFKORD_S_RTAB 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_RFKORD_S_RTAB INTO WA_RFKORD_S_RTAB.


*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 AC152, internal->external for field OPSUM
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-OPSUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-OPSUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RAST1
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-RAST1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-RAST1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RAST2
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-RAST2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-RAST2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RAST3
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-RAST3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-RAST3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RAST4
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-RAST4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-RAST4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RAST5
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-RAST5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-RAST5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RAST6
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_RFKORD_S_RTAB-RAST6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKORD_S_RTAB-RAST6.
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_RFKORD_S_RTAB_STR, 
BUKRS TYPE STRING,
BSTAT TYPE STRING,
WAERS TYPE STRING,
RAART TYPE STRING,
OPSUM TYPE STRING,
RAST1 TYPE STRING,
RAST2 TYPE STRING,
RAST3 TYPE STRING,
RAST4 TYPE STRING,
RAST5 TYPE STRING,
RAST6 TYPE STRING,
RPT01 TYPE STRING,
RPT02 TYPE STRING,
RPT03 TYPE STRING,
RPT04 TYPE STRING,
RPT05 TYPE STRING,
RPT06 TYPE STRING,
RPT07 TYPE STRING,
RPT08 TYPE STRING,
RPT09 TYPE STRING,
RPT10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKORD_S_RTAB_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_RFKORD_S_RTAB_STR-BUKRS sy-vline 
WA_RFKORD_S_RTAB_STR-BSTAT sy-vline 
WA_RFKORD_S_RTAB_STR-WAERS sy-vline 
WA_RFKORD_S_RTAB_STR-RAART sy-vline 
WA_RFKORD_S_RTAB_STR-OPSUM sy-vline 
WA_RFKORD_S_RTAB_STR-RAST1 sy-vline 
WA_RFKORD_S_RTAB_STR-RAST2 sy-vline 
WA_RFKORD_S_RTAB_STR-RAST3 sy-vline 
WA_RFKORD_S_RTAB_STR-RAST4 sy-vline 
WA_RFKORD_S_RTAB_STR-RAST5 sy-vline 
WA_RFKORD_S_RTAB_STR-RAST6 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT01 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT02 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT03 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT04 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT05 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT06 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT07 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT08 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT09 sy-vline 
WA_RFKORD_S_RTAB_STR-RPT10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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