ABAP Select data from SAP table VFCLMMMPI1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VFCLMMMPI1 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 VFCLMMMPI1. 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 VFCLMMMPI1 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_VFCLMMMPI1 TYPE STANDARD TABLE OF VFCLMMMPI1,
      WA_VFCLMMMPI1 TYPE VFCLMMMPI1,
      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: <VFCLMMMPI1> TYPE VFCLMMMPI1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VFCLMMMPI1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VFCLMMMPI1
  INTO TABLE IT_VFCLMMMPI1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFCLMMMPI1
*  INTO TABLE @DATA(IT_VFCLMMMPI12).
*--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_VFCLMMMPI1 INDEX 1 INTO DATA(WA_VFCLMMMPI12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VFCLMMMPI1 ASSIGNING <VFCLMMMPI1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFCLMMMPI1>-MANDT = 1.
<VFCLMMMPI1>-EBELN = 1.
<VFCLMMMPI1>-EBELP = 1.
<VFCLMMMPI1>-LOEKZ = 1.
<VFCLMMMPI1>-STATU = 1.

ENDLOOP.

LOOP AT IT_VFCLMMMPI1 INTO WA_VFCLMMMPI1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFCLMMMPI1-AEDAT, sy-vline,
  WA_VFCLMMMPI1-TXZ01, sy-vline,
  WA_VFCLMMMPI1-MATNR, sy-vline,
  WA_VFCLMMMPI1-EMATN, sy-vline,
  WA_VFCLMMMPI1-BUKRS, sy-vline,
  WA_VFCLMMMPI1-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFCLMMMPI1 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_VFCLMMMPI1 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_VFCLMMMPI1 INTO WA_VFCLMMMPI1.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-EMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-INFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-INFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BANFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCLMMMPI1-BANFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCLMMMPI1-BANFN.
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_VFCLMMMPI1_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
LOEKZ TYPE STRING,
STATU TYPE STRING,
AEDAT TYPE STRING,
TXZ01 TYPE STRING,
MATNR TYPE STRING,
EMATN TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BEDNR TYPE STRING,
MATKL TYPE STRING,
INFNR TYPE STRING,
IDNLF TYPE STRING,
KTMNG TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
BPRME TYPE STRING,
BPUMZ TYPE STRING,
BPUMN TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
NETWR TYPE STRING,
BRTWR TYPE STRING,
AGDAT TYPE STRING,
WEBAZ TYPE STRING,
MWSKZ TYPE STRING,
BONUS TYPE STRING,
INSMK TYPE STRING,
SPINF TYPE STRING,
PRSDR TYPE STRING,
SCHPR TYPE STRING,
MAHNZ TYPE STRING,
MAHN1 TYPE STRING,
MAHN2 TYPE STRING,
MAHN3 TYPE STRING,
BANFN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFCLMMMPI1_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_VFCLMMMPI1_STR-MANDT sy-vline 
WA_VFCLMMMPI1_STR-EBELN sy-vline 
WA_VFCLMMMPI1_STR-EBELP sy-vline 
WA_VFCLMMMPI1_STR-LOEKZ sy-vline 
WA_VFCLMMMPI1_STR-STATU sy-vline 
WA_VFCLMMMPI1_STR-AEDAT sy-vline 
WA_VFCLMMMPI1_STR-TXZ01 sy-vline 
WA_VFCLMMMPI1_STR-MATNR sy-vline 
WA_VFCLMMMPI1_STR-EMATN sy-vline 
WA_VFCLMMMPI1_STR-BUKRS sy-vline 
WA_VFCLMMMPI1_STR-WERKS sy-vline 
WA_VFCLMMMPI1_STR-LGORT sy-vline 
WA_VFCLMMMPI1_STR-BEDNR sy-vline 
WA_VFCLMMMPI1_STR-MATKL sy-vline 
WA_VFCLMMMPI1_STR-INFNR sy-vline 
WA_VFCLMMMPI1_STR-IDNLF sy-vline 
WA_VFCLMMMPI1_STR-KTMNG sy-vline 
WA_VFCLMMMPI1_STR-MENGE sy-vline 
WA_VFCLMMMPI1_STR-MEINS sy-vline 
WA_VFCLMMMPI1_STR-BPRME sy-vline 
WA_VFCLMMMPI1_STR-BPUMZ sy-vline 
WA_VFCLMMMPI1_STR-BPUMN sy-vline 
WA_VFCLMMMPI1_STR-UMREZ sy-vline 
WA_VFCLMMMPI1_STR-UMREN sy-vline 
WA_VFCLMMMPI1_STR-NETPR sy-vline 
WA_VFCLMMMPI1_STR-PEINH sy-vline 
WA_VFCLMMMPI1_STR-NETWR sy-vline 
WA_VFCLMMMPI1_STR-BRTWR sy-vline 
WA_VFCLMMMPI1_STR-AGDAT sy-vline 
WA_VFCLMMMPI1_STR-WEBAZ sy-vline 
WA_VFCLMMMPI1_STR-MWSKZ sy-vline 
WA_VFCLMMMPI1_STR-BONUS sy-vline 
WA_VFCLMMMPI1_STR-INSMK sy-vline 
WA_VFCLMMMPI1_STR-SPINF sy-vline 
WA_VFCLMMMPI1_STR-PRSDR sy-vline 
WA_VFCLMMMPI1_STR-SCHPR sy-vline 
WA_VFCLMMMPI1_STR-MAHNZ sy-vline 
WA_VFCLMMMPI1_STR-MAHN1 sy-vline 
WA_VFCLMMMPI1_STR-MAHN2 sy-vline 
WA_VFCLMMMPI1_STR-MAHN3 sy-vline 
WA_VFCLMMMPI1_STR-BANFN sy-vline      INTO ld_text SEPARATED BY SPACE.

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