ABAP Select data from SAP table RFM_SITE_C_WRF1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFM_SITE_C_WRF1 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 RFM_SITE_C_WRF1. 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 RFM_SITE_C_WRF1 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_RFM_SITE_C_WRF1 TYPE STANDARD TABLE OF RFM_SITE_C_WRF1,
      WA_RFM_SITE_C_WRF1 TYPE RFM_SITE_C_WRF1,
      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: <RFM_SITE_C_WRF1> TYPE RFM_SITE_C_WRF1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFM_SITE_C_WRF1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFM_SITE_C_WRF1
  INTO TABLE IT_RFM_SITE_C_WRF1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFM_SITE_C_WRF1
*  INTO TABLE @DATA(IT_RFM_SITE_C_WRF12).
*--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_RFM_SITE_C_WRF1 INDEX 1 INTO DATA(WA_RFM_SITE_C_WRF12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFM_SITE_C_WRF1 ASSIGNING <RFM_SITE_C_WRF1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFM_SITE_C_WRF1>-MANDT = 1.
<RFM_SITE_C_WRF1>-WERKS = 1.
<RFM_SITE_C_WRF1>-BETRP = 1.
<RFM_SITE_C_WRF1>-VKBUR_WRK = 1.
<RFM_SITE_C_WRF1>-BWVKO = 1.

ENDLOOP.

LOOP AT IT_RFM_SITE_C_WRF1 INTO WA_RFM_SITE_C_WRF1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFM_SITE_C_WRF1-BWVTW, sy-vline,
  WA_RFM_SITE_C_WRF1-VKORG, sy-vline,
  WA_RFM_SITE_C_WRF1-VTWEG, sy-vline,
  WA_RFM_SITE_C_WRF1-WBPRO, sy-vline,
  WA_RFM_SITE_C_WRF1-NLMATFB, sy-vline,
  WA_RFM_SITE_C_WRF1-AUTOB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFM_SITE_C_WRF1 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_RFM_SITE_C_WRF1 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_RFM_SITE_C_WRF1 INTO WA_RFM_SITE_C_WRF1.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_RFM_SITE_C_WRF1_STR, 
MANDT TYPE STRING,
WERKS TYPE STRING,
BETRP TYPE STRING,
VKBUR_WRK TYPE STRING,
BWVKO TYPE STRING,
BWVTW TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
WBPRO TYPE STRING,
NLMATFB TYPE STRING,
AUTOB TYPE STRING,
DESROI TYPE STRING,
TIMINC TYPE STRING,
KOPRO TYPE STRING,
INPRO TYPE STRING,
EKOAR TYPE STRING,
POSWS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFM_SITE_C_WRF1_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_RFM_SITE_C_WRF1_STR-MANDT sy-vline 
WA_RFM_SITE_C_WRF1_STR-WERKS sy-vline 
WA_RFM_SITE_C_WRF1_STR-BETRP sy-vline 
WA_RFM_SITE_C_WRF1_STR-VKBUR_WRK sy-vline 
WA_RFM_SITE_C_WRF1_STR-BWVKO sy-vline 
WA_RFM_SITE_C_WRF1_STR-BWVTW sy-vline 
WA_RFM_SITE_C_WRF1_STR-VKORG sy-vline 
WA_RFM_SITE_C_WRF1_STR-VTWEG sy-vline 
WA_RFM_SITE_C_WRF1_STR-WBPRO sy-vline 
WA_RFM_SITE_C_WRF1_STR-NLMATFB sy-vline 
WA_RFM_SITE_C_WRF1_STR-AUTOB sy-vline 
WA_RFM_SITE_C_WRF1_STR-DESROI sy-vline 
WA_RFM_SITE_C_WRF1_STR-TIMINC sy-vline 
WA_RFM_SITE_C_WRF1_STR-KOPRO sy-vline 
WA_RFM_SITE_C_WRF1_STR-INPRO sy-vline 
WA_RFM_SITE_C_WRF1_STR-EKOAR sy-vline 
WA_RFM_SITE_C_WRF1_STR-POSWS sy-vline      INTO ld_text SEPARATED BY SPACE.

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