ABAP Select data from SAP table RNWCH_KOGU_SPOLIST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RNWCH_KOGU_SPOLIST 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_KOGU_SPOLIST. 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_KOGU_SPOLIST 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_KOGU_SPOLIST TYPE STANDARD TABLE OF RNWCH_KOGU_SPOLIST,
      WA_RNWCH_KOGU_SPOLIST TYPE RNWCH_KOGU_SPOLIST,
      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_KOGU_SPOLIST> TYPE RNWCH_KOGU_SPOLIST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNWCH_KOGU_SPOLIST
*  INTO TABLE @DATA(IT_RNWCH_KOGU_SPOLIST2).
*--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_KOGU_SPOLIST INDEX 1 INTO DATA(WA_RNWCH_KOGU_SPOLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNWCH_KOGU_SPOLIST>-LFDNR = 1.
<RNWCH_KOGU_SPOLIST>-ISRECIPIENT = 1.
<RNWCH_KOGU_SPOLIST>-EANNR = 1.
<RNWCH_KOGU_SPOLIST>-COMP = 1.
<RNWCH_KOGU_SPOLIST>-CNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNWCH_KOGU_SPOLIST-CDEPT, sy-vline,
  WA_RNWCH_KOGU_SPOLIST-CSALUTATION, sy-vline,
  WA_RNWCH_KOGU_SPOLIST-CTITEL, sy-vline,
  WA_RNWCH_KOGU_SPOLIST-CADDR, sy-vline,
  WA_RNWCH_KOGU_SPOLIST-POBOX, sy-vline,
  WA_RNWCH_KOGU_SPOLIST-STREET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNWCH_KOGU_SPOLIST 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_KOGU_SPOLIST 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_KOGU_SPOLIST INTO WA_RNWCH_KOGU_SPOLIST.


*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_KOGU_SPOLIST_STR, 
LFDNR TYPE STRING,
ISRECIPIENT TYPE STRING,
EANNR TYPE STRING,
COMP TYPE STRING,
CNAME TYPE STRING,
CDEPT TYPE STRING,
CSALUTATION TYPE STRING,
CTITEL TYPE STRING,
CADDR TYPE STRING,
POBOX TYPE STRING,
STREET TYPE STRING,
POSTCODE TYPE STRING,
CITY TYPE STRING,
STATECODE TYPE STRING,
COUNTRYCODE TYPE STRING,
TELNR1 TYPE STRING,
TELNR2 TYPE STRING,
TELNR3 TYPE STRING,
FAXNR1 TYPE STRING,
EMAIL1 TYPE STRING,
URL1 TYPE STRING,
SUBADDR TYPE STRING,
SIGN TYPE STRING,
PATIDVERS TYPE STRING,
CASEIDVERS TYPE STRING,
EREIG_DAT TYPE STRING,
EREIG_TIM TYPE STRING,
VERTRNR TYPE STRING,
AHVNR TYPE STRING,
NIFNR TYPE STRING,
AMOUNTSING TYPE STRING,
CURRSING TYPE STRING,
AMOUNTTOT TYPE STRING,
CURRTOT TYPE STRING,
AMOUNTMED TYPE STRING,
CURRMED TYPE STRING,
CLASSMED TYPE STRING,
AMOUNTTREAT TYPE STRING,
CURRTREAT TYPE STRING,
CLASSTREAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNWCH_KOGU_SPOLIST_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_KOGU_SPOLIST_STR-LFDNR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-ISRECIPIENT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-EANNR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-COMP sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CNAME sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CDEPT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CSALUTATION sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CTITEL sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CADDR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-POBOX sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-STREET sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-POSTCODE sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CITY sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-STATECODE sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-COUNTRYCODE sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-TELNR1 sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-TELNR2 sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-TELNR3 sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-FAXNR1 sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-EMAIL1 sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-URL1 sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-SUBADDR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-SIGN sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-PATIDVERS sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CASEIDVERS sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-EREIG_DAT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-EREIG_TIM sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-VERTRNR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-AHVNR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-NIFNR sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-AMOUNTSING sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CURRSING sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-AMOUNTTOT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CURRTOT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-AMOUNTMED sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CURRMED sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CLASSMED sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-AMOUNTTREAT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CURRTREAT sy-vline 
WA_RNWCH_KOGU_SPOLIST_STR-CLASSTREAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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