ABAP Select data from SAP table MBBS_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MBBS_S
*  INTO TABLE @DATA(IT_MBBS_S2).
*--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_MBBS_S INDEX 1 INTO DATA(WA_MBBS_S2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MBBS_S-POSNR, sy-vline,
  WA_MBBS_S-KUNNR, sy-vline,
  WA_MBBS_S-LIFNR, sy-vline,
  WA_MBBS_S-POSID, sy-vline,
  WA_MBBS_S-PSPID, sy-vline,
  WA_MBBS_S-PSPNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MBBS_S 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_MBBS_S 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_MBBS_S INTO WA_MBBS_S.


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

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

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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_MBBS_S-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBS_S-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_MBBS_S-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBS_S-PSPID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MBBS_S-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBS_S-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MBBS_S-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MBBS_S-MEINS.
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_MBBS_S_STR, 
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
SOBKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
POSID TYPE STRING,
PSPID TYPE STRING,
PSPNR TYPE STRING,
POST1 TYPE STRING,
LBKUM TYPE STRING,
MEINS TYPE STRING,
SALK3 TYPE STRING,
WAERS TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
PEINH TYPE STRING,
BKLAS TYPE STRING,
SALKV TYPE STRING,
BWTTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MBBS_S_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_MBBS_S_STR-MATNR sy-vline 
WA_MBBS_S_STR-BWKEY sy-vline 
WA_MBBS_S_STR-BWTAR sy-vline 
WA_MBBS_S_STR-SOBKZ sy-vline 
WA_MBBS_S_STR-VBELN sy-vline 
WA_MBBS_S_STR-POSNR sy-vline 
WA_MBBS_S_STR-KUNNR sy-vline 
WA_MBBS_S_STR-LIFNR sy-vline 
WA_MBBS_S_STR-POSID sy-vline 
WA_MBBS_S_STR-PSPID sy-vline 
WA_MBBS_S_STR-PSPNR sy-vline 
WA_MBBS_S_STR-POST1 sy-vline 
WA_MBBS_S_STR-LBKUM sy-vline 
WA_MBBS_S_STR-MEINS sy-vline 
WA_MBBS_S_STR-SALK3 sy-vline 
WA_MBBS_S_STR-WAERS sy-vline 
WA_MBBS_S_STR-VPRSV sy-vline 
WA_MBBS_S_STR-VERPR sy-vline 
WA_MBBS_S_STR-STPRS sy-vline 
WA_MBBS_S_STR-PEINH sy-vline 
WA_MBBS_S_STR-BKLAS sy-vline 
WA_MBBS_S_STR-SALKV sy-vline 
WA_MBBS_S_STR-BWTTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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