ABAP Select data from SAP table RABEWTAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RABEWTAB
*  INTO TABLE @DATA(IT_RABEWTAB2).
*--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_RABEWTAB INDEX 1 INTO DATA(WA_RABEWTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RABEWTAB>-AFABE = 1.
<RABEWTAB>-BWASL = 1.
<RABEWTAB>-BWATXT = 1.
<RABEWTAB>-BZDAT = 1.
<RABEWTAB>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RABEWTAB-ANBTR, sy-vline,
  WA_RABEWTAB-NAFAB, sy-vline,
  WA_RABEWTAB-SAFAB, sy-vline,
  WA_RABEWTAB-ZINSB, sy-vline,
  WA_RABEWTAB-STABIX, sy-vline,
  WA_RABEWTAB-STABIX_BEW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RABEWTAB 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_RABEWTAB 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_RABEWTAB INTO WA_RABEWTAB.


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

*Conversion exit AC132, internal->external for field ANBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RABEWTAB-ANBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RABEWTAB-ANBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field NAFAB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RABEWTAB-NAFAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RABEWTAB-NAFAB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SAFAB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RABEWTAB-SAFAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RABEWTAB-SAFAB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZINSB
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_RABEWTAB-ZINSB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RABEWTAB-ZINSB.
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_RABEWTAB_STR, 
AFABE TYPE STRING,
BWASL TYPE STRING,
BWATXT TYPE STRING,
BZDAT TYPE STRING,
BELNR TYPE STRING,
ANBTR TYPE STRING,
NAFAB TYPE STRING,
SAFAB TYPE STRING,
ZINSB TYPE STRING,
STABIX TYPE STRING,
STABIX_BEW TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RABEWTAB_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_RABEWTAB_STR-AFABE sy-vline 
WA_RABEWTAB_STR-BWASL sy-vline 
WA_RABEWTAB_STR-BWATXT sy-vline 
WA_RABEWTAB_STR-BZDAT sy-vline 
WA_RABEWTAB_STR-BELNR sy-vline 
WA_RABEWTAB_STR-ANBTR sy-vline 
WA_RABEWTAB_STR-NAFAB sy-vline 
WA_RABEWTAB_STR-SAFAB sy-vline 
WA_RABEWTAB_STR-ZINSB sy-vline 
WA_RABEWTAB_STR-STABIX sy-vline 
WA_RABEWTAB_STR-STABIX_BEW sy-vline 
WA_RABEWTAB_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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