ABAP Select data from SAP table MBBIWXMSKA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MBBIWXMSKA
*  INTO TABLE @DATA(IT_MBBIWXMSKA2).
*--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_MBBIWXMSKA INDEX 1 INTO DATA(WA_MBBIWXMSKA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MBBIWXMSKA>-MATNR = 1.
<MBBIWXMSKA>-WERKS = 1.
<MBBIWXMSKA>-LGORT = 1.
<MBBIWXMSKA>-CHARG = 1.
<MBBIWXMSKA>-SOBKZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MBBIWXMSKA-VBELN, sy-vline,
  WA_MBBIWXMSKA-POSNR, sy-vline,
  WA_MBBIWXMSKA-KALAB, sy-vline,
  WA_MBBIWXMSKA-KAINS, sy-vline,
  WA_MBBIWXMSKA-KAEIN, sy-vline,
  WA_MBBIWXMSKA-KASPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MBBIWXMSKA 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_MBBIWXMSKA 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_MBBIWXMSKA INTO WA_MBBIWXMSKA.


*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_MBBIWXMSKA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBIWXMSKA-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MBBIWXMSKA-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBIWXMSKA-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_MBBIWXMSKA_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
KALAB TYPE STRING,
KAINS TYPE STRING,
KAEIN TYPE STRING,
KASPE TYPE STRING,
/CWM/KALAB TYPE STRING,
/CWM/KAINS TYPE STRING,
/CWM/KASPE TYPE STRING,
/CWM/KAEIN TYPE STRING,
/CWM/KAVLA TYPE STRING,
/CWM/KAVIN TYPE STRING,
/CWM/KAVSP TYPE STRING,
/CWM/KAVEI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MBBIWXMSKA_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_MBBIWXMSKA_STR-MATNR sy-vline 
WA_MBBIWXMSKA_STR-WERKS sy-vline 
WA_MBBIWXMSKA_STR-LGORT sy-vline 
WA_MBBIWXMSKA_STR-CHARG sy-vline 
WA_MBBIWXMSKA_STR-SOBKZ sy-vline 
WA_MBBIWXMSKA_STR-VBELN sy-vline 
WA_MBBIWXMSKA_STR-POSNR sy-vline 
WA_MBBIWXMSKA_STR-KALAB sy-vline 
WA_MBBIWXMSKA_STR-KAINS sy-vline 
WA_MBBIWXMSKA_STR-KAEIN sy-vline 
WA_MBBIWXMSKA_STR-KASPE sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KALAB sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KAINS sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KASPE sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KAEIN sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KAVLA sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KAVIN sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KAVSP sy-vline 
WA_MBBIWXMSKA_STR-/CWM/KAVEI sy-vline      INTO ld_text SEPARATED BY SPACE.

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