ABAP Select data from SAP table PMMO_MDFA into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMO_MDFA
*  INTO TABLE @DATA(IT_PMMO_MDFA2).
*--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_PMMO_MDFA INDEX 1 INTO DATA(WA_PMMO_MDFA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMO_MDFA>-AUFNR = 1.
<PMMO_MDFA>-POSNR = 1.
<PMMO_MDFA>-ELIKZ = 1.
<PMMO_MDFA>-MEINS = 1.
<PMMO_MDFA>-WEMNG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMO_MDFA-AMEIN, sy-vline,
  WA_PMMO_MDFA-MATNR, sy-vline,
  WA_PMMO_MDFA-PGMNG, sy-vline,
  WA_PMMO_MDFA-UMREZ, sy-vline,
  WA_PMMO_MDFA-UMREN, sy-vline,
  WA_PMMO_MDFA-PAMNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMO_MDFA 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_PMMO_MDFA 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_PMMO_MDFA INTO WA_PMMO_MDFA.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_MDFA-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_MDFA-AUFNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LEAD_AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_MDFA-LEAD_AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_MDFA-LEAD_AUFNR.
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_PMMO_MDFA_STR, 
AUFNR TYPE STRING,
POSNR TYPE STRING,
ELIKZ TYPE STRING,
MEINS TYPE STRING,
WEMNG TYPE STRING,
AMEIN TYPE STRING,
MATNR TYPE STRING,
PGMNG TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
PAMNG TYPE STRING,
IAMNG TYPE STRING,
DNREL TYPE STRING,
WEBAZ TYPE STRING,
SOBKZ TYPE STRING,
PSPEL TYPE STRING,
IASMG TYPE STRING,
AFTYP TYPE STRING,
GSMNG TYPE STRING,
PWWRL TYPE STRING,
PLWRK TYPE STRING,
PEDTR TYPE STRING,
GMEIN TYPE STRING,
BERID TYPE STRING,
PRODNET TYPE STRING,
MAUFNR TYPE STRING,
LEAD_AUFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMO_MDFA_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_PMMO_MDFA_STR-AUFNR sy-vline 
WA_PMMO_MDFA_STR-POSNR sy-vline 
WA_PMMO_MDFA_STR-ELIKZ sy-vline 
WA_PMMO_MDFA_STR-MEINS sy-vline 
WA_PMMO_MDFA_STR-WEMNG sy-vline 
WA_PMMO_MDFA_STR-AMEIN sy-vline 
WA_PMMO_MDFA_STR-MATNR sy-vline 
WA_PMMO_MDFA_STR-PGMNG sy-vline 
WA_PMMO_MDFA_STR-UMREZ sy-vline 
WA_PMMO_MDFA_STR-UMREN sy-vline 
WA_PMMO_MDFA_STR-PAMNG sy-vline 
WA_PMMO_MDFA_STR-IAMNG sy-vline 
WA_PMMO_MDFA_STR-DNREL sy-vline 
WA_PMMO_MDFA_STR-WEBAZ sy-vline 
WA_PMMO_MDFA_STR-SOBKZ sy-vline 
WA_PMMO_MDFA_STR-PSPEL sy-vline 
WA_PMMO_MDFA_STR-IASMG sy-vline 
WA_PMMO_MDFA_STR-AFTYP sy-vline 
WA_PMMO_MDFA_STR-GSMNG sy-vline 
WA_PMMO_MDFA_STR-PWWRL sy-vline 
WA_PMMO_MDFA_STR-PLWRK sy-vline 
WA_PMMO_MDFA_STR-PEDTR sy-vline 
WA_PMMO_MDFA_STR-GMEIN sy-vline 
WA_PMMO_MDFA_STR-BERID sy-vline 
WA_PMMO_MDFA_STR-PRODNET sy-vline 
WA_PMMO_MDFA_STR-MAUFNR sy-vline 
WA_PMMO_MDFA_STR-LEAD_AUFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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