ABAP Select data from SAP table RNBILLING_OUTPUT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RNBILLING_OUTPUT
*  INTO TABLE @DATA(IT_RNBILLING_OUTPUT2).
*--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_RNBILLING_OUTPUT INDEX 1 INTO DATA(WA_RNBILLING_OUTPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RNBILLING_OUTPUT>-KEY_DATA = 1.
<RNBILLING_OUTPUT>-MANDT = 1.
<RNBILLING_OUTPUT>-GUID = 1.
<RNBILLING_OUTPUT>-EVENT = 1.
<RNBILLING_OUTPUT>-APPLK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RNBILLING_OUTPUT-EINRI, sy-vline,
  WA_RNBILLING_OUTPUT-FALNR, sy-vline,
  WA_RNBILLING_OUTPUT-LFDNR, sy-vline,
  WA_RNBILLING_OUTPUT-PATNR, sy-vline,
  WA_RNBILLING_OUTPUT-EXTNR, sy-vline,
  WA_RNBILLING_OUTPUT-KOSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RNBILLING_OUTPUT 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_RNBILLING_OUTPUT 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_RNBILLING_OUTPUT INTO WA_RNBILLING_OUTPUT.


*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 EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNBILLING_OUTPUT-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNBILLING_OUTPUT-EINRI.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field KOSTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RNBILLING_OUTPUT-KOSTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RNBILLING_OUTPUT-KOSTR.
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_RNBILLING_OUTPUT_STR, 
KEY_DATA TYPE STRING,
MANDT TYPE STRING,
GUID TYPE STRING,
EVENT TYPE STRING,
APPLK TYPE STRING,
EINRI TYPE STRING,
FALNR TYPE STRING,
LFDNR TYPE STRING,
PATNR TYPE STRING,
EXTNR TYPE STRING,
KOSTR TYPE STRING,
COMNUM TYPE STRING,
KEY1 TYPE STRING,
KEY2 TYPE STRING,
KEY3 TYPE STRING,
KEY4 TYPE STRING,
KEY5 TYPE STRING,
KEY6 TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
ERUSR TYPE STRING,
TA TYPE STRING,
DATA_TYPE TYPE STRING,
REF_GUID TYPE STRING,
RNKSKX TYPE STRING,
RNKSPX TYPE STRING,
VNLKZ TYPE STRING,
IRSHA TYPE STRING,
COMNUM TYPE STRING,
MESSG TYPE STRING,
MSBEG TYPE STRING,
MSGTY TYPE STRING,
RETRN TYPE STRING,
HCODE TYPE STRING,
TCODE TYPE STRING,
SDATE TYPE STRING,
RDATE TYPE STRING,
MBODY TYPE STRING,
SYSIF TYPE STRING,
SYSEX TYPE STRING,
MSEND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RNBILLING_OUTPUT_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_RNBILLING_OUTPUT_STR-KEY_DATA sy-vline 
WA_RNBILLING_OUTPUT_STR-MANDT sy-vline 
WA_RNBILLING_OUTPUT_STR-GUID sy-vline 
WA_RNBILLING_OUTPUT_STR-EVENT sy-vline 
WA_RNBILLING_OUTPUT_STR-APPLK sy-vline 
WA_RNBILLING_OUTPUT_STR-EINRI sy-vline 
WA_RNBILLING_OUTPUT_STR-FALNR sy-vline 
WA_RNBILLING_OUTPUT_STR-LFDNR sy-vline 
WA_RNBILLING_OUTPUT_STR-PATNR sy-vline 
WA_RNBILLING_OUTPUT_STR-EXTNR sy-vline 
WA_RNBILLING_OUTPUT_STR-KOSTR sy-vline 
WA_RNBILLING_OUTPUT_STR-COMNUM sy-vline 
WA_RNBILLING_OUTPUT_STR-KEY1 sy-vline 
WA_RNBILLING_OUTPUT_STR-KEY2 sy-vline 
WA_RNBILLING_OUTPUT_STR-KEY3 sy-vline 
WA_RNBILLING_OUTPUT_STR-KEY4 sy-vline 
WA_RNBILLING_OUTPUT_STR-KEY5 sy-vline 
WA_RNBILLING_OUTPUT_STR-KEY6 sy-vline 
WA_RNBILLING_OUTPUT_STR-ERDAT sy-vline 
WA_RNBILLING_OUTPUT_STR-ERTIM sy-vline 
WA_RNBILLING_OUTPUT_STR-ERUSR sy-vline 
WA_RNBILLING_OUTPUT_STR-TA sy-vline 
WA_RNBILLING_OUTPUT_STR-DATA_TYPE sy-vline 
WA_RNBILLING_OUTPUT_STR-REF_GUID sy-vline 
WA_RNBILLING_OUTPUT_STR-RNKSKX sy-vline 
WA_RNBILLING_OUTPUT_STR-RNKSPX sy-vline 
WA_RNBILLING_OUTPUT_STR-VNLKZ sy-vline 
WA_RNBILLING_OUTPUT_STR-IRSHA sy-vline 
WA_RNBILLING_OUTPUT_STR-COMNUM sy-vline 
WA_RNBILLING_OUTPUT_STR-MESSG sy-vline 
WA_RNBILLING_OUTPUT_STR-MSBEG sy-vline 
WA_RNBILLING_OUTPUT_STR-MSGTY sy-vline 
WA_RNBILLING_OUTPUT_STR-RETRN sy-vline 
WA_RNBILLING_OUTPUT_STR-HCODE sy-vline 
WA_RNBILLING_OUTPUT_STR-TCODE sy-vline 
WA_RNBILLING_OUTPUT_STR-SDATE sy-vline 
WA_RNBILLING_OUTPUT_STR-RDATE sy-vline 
WA_RNBILLING_OUTPUT_STR-MBODY sy-vline 
WA_RNBILLING_OUTPUT_STR-SYSIF sy-vline 
WA_RNBILLING_OUTPUT_STR-SYSEX sy-vline 
WA_RNBILLING_OUTPUT_STR-MSEND sy-vline      INTO ld_text SEPARATED BY SPACE.

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