ABAP Select data from SAP table MPPA 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 MPPA 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 MPPA. 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 MPPA 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_MPPA TYPE STANDARD TABLE OF MPPA,
      WA_MPPA TYPE MPPA,
      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: <MPPA> TYPE MPPA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPPA
*  INTO TABLE @DATA(IT_MPPA2).
*--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_MPPA INDEX 1 INTO DATA(WA_MPPA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MPPA>-OBART = 1.
<MPPA>-PLNUM = 1.
<MPPA>-PLWRK = 1.
<MPPA>-PWWRK = 1.
<MPPA>-PAART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPPA-BESKZ, sy-vline,
  WA_MPPA-SOBES, sy-vline,
  WA_MPPA-GSMNG, sy-vline,
  WA_MPPA-AVMNG, sy-vline,
  WA_MPPA-BDMNG, sy-vline,
  WA_MPPA-PSTTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPPA 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_MPPA 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_MPPA INTO WA_MPPA.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPPA-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPPA-KUNNR.
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_MPPA_STR, 
OBART TYPE STRING,
PLNUM TYPE STRING,
PLWRK TYPE STRING,
PWWRK TYPE STRING,
PAART TYPE STRING,
BESKZ TYPE STRING,
SOBES TYPE STRING,
GSMNG TYPE STRING,
AVMNG TYPE STRING,
BDMNG TYPE STRING,
PSTTR TYPE STRING,
PEDTR TYPE STRING,
PERTR TYPE STRING,
WEBAZ TYPE STRING,
LGORT TYPE STRING,
AUFFX TYPE STRING,
STLFX TYPE STRING,
UMSKZ TYPE STRING,
EKORG TYPE STRING,
FLIEF TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
KNTTP TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPEL TYPE STRING,
AKTAL TYPE STRING,
RSNUM 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,
VERTO TYPE STRING,
AUFNR TYPE STRING,
AENNR TYPE STRING,
FRTHW TYPE STRING,
CUOBJ TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
QUNUM TYPE STRING,
QUPOS TYPE STRING,
AKTFT TYPE STRING,
BEDID TYPE STRING,
TRMER TYPE STRING,
AKTRT TYPE STRING,
RATID TYPE STRING,
RATER TYPE STRING,
AKTGT TYPE STRING,
GROID TYPE STRING,
GROER TYPE STRING,
PRNKZ TYPE STRING,
KAPFX TYPE STRING,
VRPLA TYPE STRING,
PBDNR TYPE STRING,
KZBWS TYPE STRING,
WAMNG TYPE STRING,
WEMNG TYPE STRING,
PLANR TYPE STRING,
PLAAB TYPE STRING,
EMATN TYPE STRING,
PLIFZ TYPE STRING,
SRM_CONTRACT_ID TYPE STRING,
SRM_CONTRACT_ITM TYPE STRING,
BOM_VERSN TYPE STRING,
KUNNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPPA_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_MPPA_STR-OBART sy-vline 
WA_MPPA_STR-PLNUM sy-vline 
WA_MPPA_STR-PLWRK sy-vline 
WA_MPPA_STR-PWWRK sy-vline 
WA_MPPA_STR-PAART sy-vline 
WA_MPPA_STR-BESKZ sy-vline 
WA_MPPA_STR-SOBES sy-vline 
WA_MPPA_STR-GSMNG sy-vline 
WA_MPPA_STR-AVMNG sy-vline 
WA_MPPA_STR-BDMNG sy-vline 
WA_MPPA_STR-PSTTR sy-vline 
WA_MPPA_STR-PEDTR sy-vline 
WA_MPPA_STR-PERTR sy-vline 
WA_MPPA_STR-WEBAZ sy-vline 
WA_MPPA_STR-LGORT sy-vline 
WA_MPPA_STR-AUFFX sy-vline 
WA_MPPA_STR-STLFX sy-vline 
WA_MPPA_STR-UMSKZ sy-vline 
WA_MPPA_STR-EKORG sy-vline 
WA_MPPA_STR-FLIEF sy-vline 
WA_MPPA_STR-KONNR sy-vline 
WA_MPPA_STR-KTPNR sy-vline 
WA_MPPA_STR-KNTTP sy-vline 
WA_MPPA_STR-SOBKZ sy-vline 
WA_MPPA_STR-KZVBR sy-vline 
WA_MPPA_STR-KDAUF sy-vline 
WA_MPPA_STR-KDPOS sy-vline 
WA_MPPA_STR-PSPEL sy-vline 
WA_MPPA_STR-AKTAL sy-vline 
WA_MPPA_STR-RSNUM sy-vline 
WA_MPPA_STR-SERNR sy-vline 
WA_MPPA_STR-PALTR sy-vline 
WA_MPPA_STR-TECHS sy-vline 
WA_MPPA_STR-REVLV sy-vline 
WA_MPPA_STR-VERID sy-vline 
WA_MPPA_STR-STLAN sy-vline 
WA_MPPA_STR-STALT sy-vline 
WA_MPPA_STR-STSTA sy-vline 
WA_MPPA_STR-VERTO sy-vline 
WA_MPPA_STR-AUFNR sy-vline 
WA_MPPA_STR-AENNR sy-vline 
WA_MPPA_STR-FRTHW sy-vline 
WA_MPPA_STR-CUOBJ sy-vline 
WA_MPPA_STR-EBELN sy-vline 
WA_MPPA_STR-EBELP sy-vline 
WA_MPPA_STR-QUNUM sy-vline 
WA_MPPA_STR-QUPOS sy-vline 
WA_MPPA_STR-AKTFT sy-vline 
WA_MPPA_STR-BEDID sy-vline 
WA_MPPA_STR-TRMER sy-vline 
WA_MPPA_STR-AKTRT sy-vline 
WA_MPPA_STR-RATID sy-vline 
WA_MPPA_STR-RATER sy-vline 
WA_MPPA_STR-AKTGT sy-vline 
WA_MPPA_STR-GROID sy-vline 
WA_MPPA_STR-GROER sy-vline 
WA_MPPA_STR-PRNKZ sy-vline 
WA_MPPA_STR-KAPFX sy-vline 
WA_MPPA_STR-VRPLA sy-vline 
WA_MPPA_STR-PBDNR sy-vline 
WA_MPPA_STR-KZBWS sy-vline 
WA_MPPA_STR-WAMNG sy-vline 
WA_MPPA_STR-WEMNG sy-vline 
WA_MPPA_STR-PLANR sy-vline 
WA_MPPA_STR-PLAAB sy-vline 
WA_MPPA_STR-EMATN sy-vline 
WA_MPPA_STR-PLIFZ sy-vline 
WA_MPPA_STR-SRM_CONTRACT_ID sy-vline 
WA_MPPA_STR-SRM_CONTRACT_ITM sy-vline 
WA_MPPA_STR-BOM_VERSN sy-vline 
WA_MPPA_STR-KUNNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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