ABAP Select data from SAP table BAPIMATVP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIMATVP
*  INTO TABLE @DATA(IT_BAPIMATVP2).
*--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_BAPIMATVP INDEX 1 INTO DATA(WA_BAPIMATVP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIMATVP>-MATNR = 1.
<BAPIMATVP>-WERKS = 1.
<BAPIMATVP>-MAKTX = 1.
<BAPIMATVP>-PLIFZ = 1.
<BAPIMATVP>-EISBE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIMATVP-UMLMC, sy-vline,
  WA_BAPIMATVP-WEBAZ, sy-vline,
  WA_BAPIMATVP-BESKZ, sy-vline,
  WA_BAPIMATVP-SOBES, sy-vline,
  WA_BAPIMATVP-SOBKZ, sy-vline,
  WA_BAPIMATVP-KZVBR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIMATVP 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_BAPIMATVP 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_BAPIMATVP INTO WA_BAPIMATVP.


*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 MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATVP-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATVP-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATVP-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATVP-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BAPIMATVP-MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPIMATVP-MATNR_LONG.
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_BAPIMATVP_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
MAKTX TYPE STRING,
PLIFZ TYPE STRING,
EISBE TYPE STRING,
UMLMC TYPE STRING,
WEBAZ TYPE STRING,
BESKZ TYPE STRING,
SOBES TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
MEINS TYPE STRING,
WZEIT TYPE STRING,
DZEIT TYPE STRING,
BEARZ TYPE STRING,
RUEZT TYPE STRING,
TRANZ TYPE STRING,
MTVFP TYPE STRING,
DISPO TYPE STRING,
WERTU TYPE STRING,
MENGU TYPE STRING,
MATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIMATVP_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_BAPIMATVP_STR-MATNR sy-vline 
WA_BAPIMATVP_STR-WERKS sy-vline 
WA_BAPIMATVP_STR-MAKTX sy-vline 
WA_BAPIMATVP_STR-PLIFZ sy-vline 
WA_BAPIMATVP_STR-EISBE sy-vline 
WA_BAPIMATVP_STR-UMLMC sy-vline 
WA_BAPIMATVP_STR-WEBAZ sy-vline 
WA_BAPIMATVP_STR-BESKZ sy-vline 
WA_BAPIMATVP_STR-SOBES sy-vline 
WA_BAPIMATVP_STR-SOBKZ sy-vline 
WA_BAPIMATVP_STR-KZVBR sy-vline 
WA_BAPIMATVP_STR-MEINS sy-vline 
WA_BAPIMATVP_STR-WZEIT sy-vline 
WA_BAPIMATVP_STR-DZEIT sy-vline 
WA_BAPIMATVP_STR-BEARZ sy-vline 
WA_BAPIMATVP_STR-RUEZT sy-vline 
WA_BAPIMATVP_STR-TRANZ sy-vline 
WA_BAPIMATVP_STR-MTVFP sy-vline 
WA_BAPIMATVP_STR-DISPO sy-vline 
WA_BAPIMATVP_STR-WERTU sy-vline 
WA_BAPIMATVP_STR-MENGU sy-vline 
WA_BAPIMATVP_STR-MATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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