ABAP Select data from SAP table MDPA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MDPA 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 MDPA. 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 MDPA 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_MDPA TYPE STANDARD TABLE OF MDPA,
      WA_MDPA TYPE MDPA,
      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: <MDPA> TYPE MDPA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDPA
*  INTO TABLE @DATA(IT_MDPA2).
*--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_MDPA INDEX 1 INTO DATA(WA_MDPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDPA>-MATNR = 1.
<MDPA>-PWWRK = 1.
<MDPA>-LGORT = 1.
<MDPA>-OBART = 1.
<MDPA>-PLNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDPA-PAART, sy-vline,
  WA_MDPA-BESKZ, sy-vline,
  WA_MDPA-SOBES, sy-vline,
  WA_MDPA-GSMNG, sy-vline,
  WA_MDPA-TLMNG, sy-vline,
  WA_MDPA-AVMNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDPA 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_MDPA 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_MDPA INTO WA_MDPA.


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

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

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

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

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

*Conversion exit NUMCV, internal->external for field REVLV
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MDPA-REVLV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDPA-REVLV.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit NUMCV, internal->external for field STLNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MDPA-STLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDPA-STLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field DISUB_OWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MDPA-DISUB_OWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDPA-DISUB_OWNER.
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_MDPA_STR, 
MATNR TYPE STRING,
PWWRK TYPE STRING,
LGORT TYPE STRING,
OBART TYPE STRING,
PLNUM TYPE STRING,
PAART TYPE STRING,
BESKZ TYPE STRING,
SOBES TYPE STRING,
GSMNG TYPE STRING,
TLMNG TYPE STRING,
AVMNG TYPE STRING,
LAGME TYPE STRING,
PSTTR TYPE STRING,
PEDTR TYPE STRING,
UMSKZ TYPE STRING,
KNTTP TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
KZBWS TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
PSPEL TYPE STRING,
SERNR TYPE STRING,
PALTR TYPE STRING,
TECHS TYPE STRING,
REVLV TYPE STRING,
VERID TYPE STRING,
STLAN TYPE STRING,
STALT TYPE STRING,
STSTA TYPE STRING,
FRTHW TYPE STRING,
AENNR TYPE STRING,
CUOBJ TYPE STRING,
CUART TYPE STRING,
VERTO TYPE STRING,
AUSSL TYPE STRING,
OLDSL TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
AUFST TYPE STRING,
AUFWG TYPE STRING,
BAUST TYPE STRING,
BAUWG TYPE STRING,
DISST TYPE STRING,
ALTSL TYPE STRING,
STLTY TYPE STRING,
STLNR TYPE STRING,
PRNKZ TYPE STRING,
SBNUM TYPE STRING,
SBPOS TYPE STRING,
GSBTR TYPE STRING,
VFMNG TYPE STRING,
MDPBV TYPE STRING,
KZAVC TYPE STRING,
MTVFP TYPE STRING,
VRPLA TYPE STRING,
KFPOS TYPE STRING,
DUMPS TYPE STRING,
AUFPL_ORD TYPE STRING,
APLZL_ORD TYPE STRING,
WAMNG TYPE STRING,
WEMNG TYPE STRING,
EDGNO TYPE STRING,
FLIEF TYPE STRING,
PLSCN TYPE STRING,
PLWRK TYPE STRING,
BERID TYPE STRING,
ARSNR TYPE STRING,
EMLIF TYPE STRING,
STAEX TYPE STRING,
SGT_SCAT TYPE STRING,
DELVR TYPE STRING,
EBNVR TYPE STRING,
POSVR TYPE STRING,
BOM_VERSN TYPE STRING,
SERRU TYPE STRING,
ANZSN TYPE STRING,
DISUB_SOBKZ TYPE STRING,
DISUB_PSPNR TYPE STRING,
DISUB_KUNNR TYPE STRING,
DISUB_VBELN TYPE STRING,
DISUB_POSNR TYPE STRING,
DISUB_OWNER TYPE STRING,
PSTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDPA_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_MDPA_STR-MATNR sy-vline 
WA_MDPA_STR-PWWRK sy-vline 
WA_MDPA_STR-LGORT sy-vline 
WA_MDPA_STR-OBART sy-vline 
WA_MDPA_STR-PLNUM sy-vline 
WA_MDPA_STR-PAART sy-vline 
WA_MDPA_STR-BESKZ sy-vline 
WA_MDPA_STR-SOBES sy-vline 
WA_MDPA_STR-GSMNG sy-vline 
WA_MDPA_STR-TLMNG sy-vline 
WA_MDPA_STR-AVMNG sy-vline 
WA_MDPA_STR-LAGME sy-vline 
WA_MDPA_STR-PSTTR sy-vline 
WA_MDPA_STR-PEDTR sy-vline 
WA_MDPA_STR-UMSKZ sy-vline 
WA_MDPA_STR-KNTTP sy-vline 
WA_MDPA_STR-SOBKZ sy-vline 
WA_MDPA_STR-KZVBR sy-vline 
WA_MDPA_STR-KZBWS sy-vline 
WA_MDPA_STR-KDAUF sy-vline 
WA_MDPA_STR-KDPOS sy-vline 
WA_MDPA_STR-KDEIN sy-vline 
WA_MDPA_STR-PSPEL sy-vline 
WA_MDPA_STR-SERNR sy-vline 
WA_MDPA_STR-PALTR sy-vline 
WA_MDPA_STR-TECHS sy-vline 
WA_MDPA_STR-REVLV sy-vline 
WA_MDPA_STR-VERID sy-vline 
WA_MDPA_STR-STLAN sy-vline 
WA_MDPA_STR-STALT sy-vline 
WA_MDPA_STR-STSTA sy-vline 
WA_MDPA_STR-FRTHW sy-vline 
WA_MDPA_STR-AENNR sy-vline 
WA_MDPA_STR-CUOBJ sy-vline 
WA_MDPA_STR-CUART sy-vline 
WA_MDPA_STR-VERTO sy-vline 
WA_MDPA_STR-AUSSL sy-vline 
WA_MDPA_STR-OLDSL sy-vline 
WA_MDPA_STR-RSNUM sy-vline 
WA_MDPA_STR-RSPOS sy-vline 
WA_MDPA_STR-AUFST sy-vline 
WA_MDPA_STR-AUFWG sy-vline 
WA_MDPA_STR-BAUST sy-vline 
WA_MDPA_STR-BAUWG sy-vline 
WA_MDPA_STR-DISST sy-vline 
WA_MDPA_STR-ALTSL sy-vline 
WA_MDPA_STR-STLTY sy-vline 
WA_MDPA_STR-STLNR sy-vline 
WA_MDPA_STR-PRNKZ sy-vline 
WA_MDPA_STR-SBNUM sy-vline 
WA_MDPA_STR-SBPOS sy-vline 
WA_MDPA_STR-GSBTR sy-vline 
WA_MDPA_STR-VFMNG sy-vline 
WA_MDPA_STR-MDPBV sy-vline 
WA_MDPA_STR-KZAVC sy-vline 
WA_MDPA_STR-MTVFP sy-vline 
WA_MDPA_STR-VRPLA sy-vline 
WA_MDPA_STR-KFPOS sy-vline 
WA_MDPA_STR-DUMPS sy-vline 
WA_MDPA_STR-AUFPL_ORD sy-vline 
WA_MDPA_STR-APLZL_ORD sy-vline 
WA_MDPA_STR-WAMNG sy-vline 
WA_MDPA_STR-WEMNG sy-vline 
WA_MDPA_STR-EDGNO sy-vline 
WA_MDPA_STR-FLIEF sy-vline 
WA_MDPA_STR-PLSCN sy-vline 
WA_MDPA_STR-PLWRK sy-vline 
WA_MDPA_STR-BERID sy-vline 
WA_MDPA_STR-ARSNR sy-vline 
WA_MDPA_STR-EMLIF sy-vline 
WA_MDPA_STR-STAEX sy-vline 
WA_MDPA_STR-SGT_SCAT sy-vline 
WA_MDPA_STR-DELVR sy-vline 
WA_MDPA_STR-EBNVR sy-vline 
WA_MDPA_STR-POSVR sy-vline 
WA_MDPA_STR-BOM_VERSN sy-vline 
WA_MDPA_STR-SERRU sy-vline 
WA_MDPA_STR-ANZSN sy-vline 
WA_MDPA_STR-DISUB_SOBKZ sy-vline 
WA_MDPA_STR-DISUB_PSPNR sy-vline 
WA_MDPA_STR-DISUB_KUNNR sy-vline 
WA_MDPA_STR-DISUB_VBELN sy-vline 
WA_MDPA_STR-DISUB_POSNR sy-vline 
WA_MDPA_STR-DISUB_OWNER sy-vline 
WA_MDPA_STR-PSTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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