ABAP Select data from SAP table MBBIWXEBEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MBBIWXEBEW
*  INTO TABLE @DATA(IT_MBBIWXEBEW2).
*--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_MBBIWXEBEW INDEX 1 INTO DATA(WA_MBBIWXEBEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MBBIWXEBEW>-MATNR = 1.
<MBBIWXEBEW>-BWKEY = 1.
<MBBIWXEBEW>-BWTAR = 1.
<MBBIWXEBEW>-SOBKZ = 1.
<MBBIWXEBEW>-VBELN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MBBIWXEBEW-POSNR, sy-vline,
  WA_MBBIWXEBEW-SALK3, sy-vline,
  WA_MBBIWXEBEW-LBKUM, sy-vline,
  WA_MBBIWXEBEW-VKSAL, sy-vline,
  WA_MBBIWXEBEW-VPRSV, sy-vline,
  WA_MBBIWXEBEW-VERPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MBBIWXEBEW 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_MBBIWXEBEW 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_MBBIWXEBEW INTO WA_MBBIWXEBEW.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MBBIWXEBEW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBIWXEBEW-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBBIWXEBEW-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBIWXEBEW-VBELN.
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_MBBIWXEBEW_STR, 
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
SOBKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
SALK3 TYPE STRING,
LBKUM TYPE STRING,
VKSAL TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
PEINH TYPE STRING,
HSALK3 TYPE STRING,
HLBKUM TYPE STRING,
HVKSAL TYPE STRING,
BKLAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MBBIWXEBEW_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_MBBIWXEBEW_STR-MATNR sy-vline 
WA_MBBIWXEBEW_STR-BWKEY sy-vline 
WA_MBBIWXEBEW_STR-BWTAR sy-vline 
WA_MBBIWXEBEW_STR-SOBKZ sy-vline 
WA_MBBIWXEBEW_STR-VBELN sy-vline 
WA_MBBIWXEBEW_STR-POSNR sy-vline 
WA_MBBIWXEBEW_STR-SALK3 sy-vline 
WA_MBBIWXEBEW_STR-LBKUM sy-vline 
WA_MBBIWXEBEW_STR-VKSAL sy-vline 
WA_MBBIWXEBEW_STR-VPRSV sy-vline 
WA_MBBIWXEBEW_STR-VERPR sy-vline 
WA_MBBIWXEBEW_STR-STPRS sy-vline 
WA_MBBIWXEBEW_STR-PEINH sy-vline 
WA_MBBIWXEBEW_STR-HSALK3 sy-vline 
WA_MBBIWXEBEW_STR-HLBKUM sy-vline 
WA_MBBIWXEBEW_STR-HVKSAL sy-vline 
WA_MBBIWXEBEW_STR-BKLAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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