ABAP Select data from SAP table MC06M_3ITM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MC06M_3ITM 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 MC06M_3ITM. 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 MC06M_3ITM 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_MC06M_3ITM TYPE STANDARD TABLE OF MC06M_3ITM,
      WA_MC06M_3ITM TYPE MC06M_3ITM,
      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: <MC06M_3ITM> TYPE MC06M_3ITM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC06M_3ITM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC06M_3ITM
  INTO TABLE IT_MC06M_3ITM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC06M_3ITM
*  INTO TABLE @DATA(IT_MC06M_3ITM2).
*--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_MC06M_3ITM INDEX 1 INTO DATA(WA_MC06M_3ITM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC06M_3ITM ASSIGNING <MC06M_3ITM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC06M_3ITM>-AFNAM = 1.
<MC06M_3ITM>-AREWR = 1.
<MC06M_3ITM>-BASME = 1.
<MC06M_3ITM>-BEWAE = 1.
<MC06M_3ITM>-BPMNG = 1.

ENDLOOP.

LOOP AT IT_MC06M_3ITM INTO WA_MC06M_3ITM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC06M_3ITM-BPRBM, sy-vline,
  WA_MC06M_3ITM-BPREM, sy-vline,
  WA_MC06M_3ITM-BPRME, sy-vline,
  WA_MC06M_3ITM-BPUMN, sy-vline,
  WA_MC06M_3ITM-BPUMZ, sy-vline,
  WA_MC06M_3ITM-BPWEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC06M_3ITM 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_MC06M_3ITM 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_MC06M_3ITM INTO WA_MC06M_3ITM.


*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 CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-BASME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BPRME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-BPRME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-BPRME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-BSTME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-KONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LFBNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-LFBNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-LFBNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-LFGJA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-LIFNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-LIFNR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC06M_3ITM-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC06M_3ITM-MEINS.
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_MC06M_3ITM_STR, 
AFNAM TYPE STRING,
AREWR TYPE STRING,
BASME TYPE STRING,
BEWAE TYPE STRING,
BPMNG TYPE STRING,
BPRBM TYPE STRING,
BPREM TYPE STRING,
BPRME TYPE STRING,
BPUMN TYPE STRING,
BPUMZ TYPE STRING,
BPWEM TYPE STRING,
BSMNG TYPE STRING,
BSTME TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
EKGRP TYPE STRING,
EKORG TYPE STRING,
EREKZ TYPE STRING,
HWAER TYPE STRING,
KNTTP TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
LFBNR TYPE STRING,
LFGJA TYPE STRING,
LFPOS TYPE STRING,
LIFNR2 TYPE STRING,
MATKL TYPE STRING,
MATNR TYPE STRING,
MEINS TYPE STRING,
MENGE TYPE STRING,
NETPR TYPE STRING,
NETWR TYPE STRING,
NOQUANTITY TYPE STRING,
PEINH TYPE STRING,
PSTYP TYPE STRING,
RBMNG TYPE STRING,
RBWWR TYPE STRING,
REFWR TYPE STRING,
REMNG TYPE STRING,
RETPO TYPE STRING,
REWWR TYPE STRING,
SHKZG TYPE STRING,
SPGRC TYPE STRING,
SPGRG TYPE STRING,
SPGRM TYPE STRING,
SPGRP TYPE STRING,
SPGRQ TYPE STRING,
SPGRS TYPE STRING,
SPGRT TYPE STRING,
SPGRV TYPE STRING,
TBTKZ TYPE STRING,
TXZ01 TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
WEMNG TYPE STRING,
WENWR TYPE STRING,
WEPOS TYPE STRING,
WERKS TYPE STRING,
WEUNB TYPE STRING,
WEWWR TYPE STRING,
WRBTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC06M_3ITM_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_MC06M_3ITM_STR-AFNAM sy-vline 
WA_MC06M_3ITM_STR-AREWR sy-vline 
WA_MC06M_3ITM_STR-BASME sy-vline 
WA_MC06M_3ITM_STR-BEWAE sy-vline 
WA_MC06M_3ITM_STR-BPMNG sy-vline 
WA_MC06M_3ITM_STR-BPRBM sy-vline 
WA_MC06M_3ITM_STR-BPREM sy-vline 
WA_MC06M_3ITM_STR-BPRME sy-vline 
WA_MC06M_3ITM_STR-BPUMN sy-vline 
WA_MC06M_3ITM_STR-BPUMZ sy-vline 
WA_MC06M_3ITM_STR-BPWEM sy-vline 
WA_MC06M_3ITM_STR-BSMNG sy-vline 
WA_MC06M_3ITM_STR-BSTME sy-vline 
WA_MC06M_3ITM_STR-EBELN sy-vline 
WA_MC06M_3ITM_STR-EBELP sy-vline 
WA_MC06M_3ITM_STR-EKGRP sy-vline 
WA_MC06M_3ITM_STR-EKORG sy-vline 
WA_MC06M_3ITM_STR-EREKZ sy-vline 
WA_MC06M_3ITM_STR-HWAER sy-vline 
WA_MC06M_3ITM_STR-KNTTP sy-vline 
WA_MC06M_3ITM_STR-KONNR sy-vline 
WA_MC06M_3ITM_STR-KTPNR sy-vline 
WA_MC06M_3ITM_STR-LFBNR sy-vline 
WA_MC06M_3ITM_STR-LFGJA sy-vline 
WA_MC06M_3ITM_STR-LFPOS sy-vline 
WA_MC06M_3ITM_STR-LIFNR2 sy-vline 
WA_MC06M_3ITM_STR-MATKL sy-vline 
WA_MC06M_3ITM_STR-MATNR sy-vline 
WA_MC06M_3ITM_STR-MEINS sy-vline 
WA_MC06M_3ITM_STR-MENGE sy-vline 
WA_MC06M_3ITM_STR-NETPR sy-vline 
WA_MC06M_3ITM_STR-NETWR sy-vline 
WA_MC06M_3ITM_STR-NOQUANTITY sy-vline 
WA_MC06M_3ITM_STR-PEINH sy-vline 
WA_MC06M_3ITM_STR-PSTYP sy-vline 
WA_MC06M_3ITM_STR-RBMNG sy-vline 
WA_MC06M_3ITM_STR-RBWWR sy-vline 
WA_MC06M_3ITM_STR-REFWR sy-vline 
WA_MC06M_3ITM_STR-REMNG sy-vline 
WA_MC06M_3ITM_STR-RETPO sy-vline 
WA_MC06M_3ITM_STR-REWWR sy-vline 
WA_MC06M_3ITM_STR-SHKZG sy-vline 
WA_MC06M_3ITM_STR-SPGRC sy-vline 
WA_MC06M_3ITM_STR-SPGRG sy-vline 
WA_MC06M_3ITM_STR-SPGRM sy-vline 
WA_MC06M_3ITM_STR-SPGRP sy-vline 
WA_MC06M_3ITM_STR-SPGRQ sy-vline 
WA_MC06M_3ITM_STR-SPGRS sy-vline 
WA_MC06M_3ITM_STR-SPGRT sy-vline 
WA_MC06M_3ITM_STR-SPGRV sy-vline 
WA_MC06M_3ITM_STR-TBTKZ sy-vline 
WA_MC06M_3ITM_STR-TXZ01 sy-vline 
WA_MC06M_3ITM_STR-UMREN sy-vline 
WA_MC06M_3ITM_STR-UMREZ sy-vline 
WA_MC06M_3ITM_STR-WEMNG sy-vline 
WA_MC06M_3ITM_STR-WENWR sy-vline 
WA_MC06M_3ITM_STR-WEPOS sy-vline 
WA_MC06M_3ITM_STR-WERKS sy-vline 
WA_MC06M_3ITM_STR-WEUNB sy-vline 
WA_MC06M_3ITM_STR-WEWWR sy-vline 
WA_MC06M_3ITM_STR-WRBTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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