ABAP Select data from SAP table RNWCH_EDI_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNWCH_EDI_DATA
*  INTO TABLE @DATA(IT_RNWCH_EDI_DATA2).
*--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_RNWCH_EDI_DATA INDEX 1 INTO DATA(WA_RNWCH_EDI_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNWCH_EDI_DATA>-SMHDRV40 = 1.
<RNWCH_EDI_DATA>-SMPROV40 = 1.
<RNWCH_EDI_DATA>-SMINVV40 = 1.
<RNWCH_EDI_DATA>-SMES5V40 = 1.
<RNWCH_EDI_DATA>-SMES9V40 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNWCH_EDI_DATA-SMTP0V40, sy-vline,
  WA_RNWCH_EDI_DATA-SMTPAV40, sy-vline,
  WA_RNWCH_EDI_DATA-SMTPBV40, sy-vline,
  WA_RNWCH_EDI_DATA-SMTPCV40, sy-vline,
  WA_RNWCH_EDI_DATA-SMTPDV40, sy-vline,
  WA_RNWCH_EDI_DATA-SMTPEV40, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNWCH_EDI_DATA 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_RNWCH_EDI_DATA 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_RNWCH_EDI_DATA INTO WA_RNWCH_EDI_DATA.


*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_RNWCH_EDI_DATA_STR, 
SMHDRV40 TYPE STRING,
SMPROV40 TYPE STRING,
SMINVV40 TYPE STRING,
SMES5V40 TYPE STRING,
SMES9V40 TYPE STRING,
SMTP0V40 TYPE STRING,
SMTPAV40 TYPE STRING,
SMTPBV40 TYPE STRING,
SMTPCV40 TYPE STRING,
SMTPDV40 TYPE STRING,
SMTPEV40 TYPE STRING,
SMTPFV40 TYPE STRING,
SMTPGV40 TYPE STRING,
SMTPHV40 TYPE STRING,
SMTPIV40 TYPE STRING,
SMTPJV40 TYPE STRING,
SMTG0V40 TYPE STRING,
SMTGAV40 TYPE STRING,
SMTGBV40 TYPE STRING,
SMTGCV40 TYPE STRING,
SMTGDV40 TYPE STRING,
SMTGEV40 TYPE STRING,
SMTGFV40 TYPE STRING,
SMTGGV40 TYPE STRING,
SMTGHV40 TYPE STRING,
SMTGIV40 TYPE STRING,
SMTGJV40 TYPE STRING,
SMBHAV40 TYPE STRING,
SMBHSV40 TYPE STRING,
SMBHTV40 TYPE STRING,
SMDIAV40 TYPE STRING,
SMDIBV40 TYPE STRING,
SMOPAV40 TYPE STRING,
SMOPBV40 TYPE STRING,
SMKV0V40 TYPE STRING,
SMKVAV40 TYPE STRING,
SMKVBV40 TYPE STRING,
SMKVCV40 TYPE STRING,
SMKVDV40 TYPE STRING,
SMVV0V40 TYPE STRING,
SMVVAV40 TYPE STRING,
SMVVBV40 TYPE STRING,
SMVVCV40 TYPE STRING,
SMVVDV40 TYPE STRING,
SMUV0V40 TYPE STRING,
SMUVAV40 TYPE STRING,
SMUVBV40 TYPE STRING,
SMUVCV40 TYPE STRING,
SMUVDV40 TYPE STRING,
SMIV0V40 TYPE STRING,
SMIVAV40 TYPE STRING,
SMIVBV40 TYPE STRING,
SMIVCV40 TYPE STRING,
SMIVDV40 TYPE STRING,
SMMV0V40 TYPE STRING,
SMMVAV40 TYPE STRING,
SMMVBV40 TYPE STRING,
SMMVCV40 TYPE STRING,
SMMVDV40 TYPE STRING,
SMSTMV40 TYPE STRING,
SMSCTV40 TYPE STRING,
SMSUNV40 TYPE STRING,
SMSLBV40 TYPE STRING,
SMSMIV40 TYPE STRING,
SMSPHV40 TYPE STRING,
SMSDRV40 TYPE STRING,
SMRMKV40 TYPE STRING,
SMEOAV40 TYPE STRING,
SMEOBV40 TYPE STRING,
SMEOCV40 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNWCH_EDI_DATA_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_RNWCH_EDI_DATA_STR-SMHDRV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMPROV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMINVV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMES5V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMES9V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTP0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPEV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPFV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPGV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPHV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPIV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTPJV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTG0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGEV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGFV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGGV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGHV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGIV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMTGJV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMBHAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMBHSV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMBHTV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMDIAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMDIBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMOPAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMOPBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMKV0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMKVAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMKVBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMKVCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMKVDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMVV0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMVVAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMVVBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMVVCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMVVDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMUV0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMUVAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMUVBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMUVCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMUVDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMIV0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMIVAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMIVBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMIVCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMIVDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMMV0V40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMMVAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMMVBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMMVCV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMMVDV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSTMV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSCTV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSUNV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSLBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSMIV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSPHV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMSDRV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMRMKV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMEOAV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMEOBV40 sy-vline 
WA_RNWCH_EDI_DATA_STR-SMEOCV40 sy-vline      INTO ld_text SEPARATED BY SPACE.

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