ABAP Select data from SAP table MC02M_2SCL 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 MC02M_2SCL 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 MC02M_2SCL. 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 MC02M_2SCL 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_MC02M_2SCL TYPE STANDARD TABLE OF MC02M_2SCL,
      WA_MC02M_2SCL TYPE MC02M_2SCL,
      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: <MC02M_2SCL> TYPE MC02M_2SCL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC02M_2SCL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC02M_2SCL
  INTO TABLE IT_MC02M_2SCL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC02M_2SCL
*  INTO TABLE @DATA(IT_MC02M_2SCL2).
*--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_MC02M_2SCL INDEX 1 INTO DATA(WA_MC02M_2SCL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC02M_2SCL ASSIGNING <MC02M_2SCL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC02M_2SCL>-AFNAM = 1.
<MC02M_2SCL>-AKTNR = 1.
<MC02M_2SCL>-BSGRU = 1.
<MC02M_2SCL>-BWAPPLNM = 1.
<MC02M_2SCL>-BWVORG = 1.

ENDLOOP.

LOOP AT IT_MC02M_2SCL INTO WA_MC02M_2SCL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC02M_2SCL-EBELP, sy-vline,
  WA_MC02M_2SCL-ELIKZ, sy-vline,
  WA_MC02M_2SCL-EMATN, sy-vline,
  WA_MC02M_2SCL-EREKZ, sy-vline,
  WA_MC02M_2SCL-KONNR, sy-vline,
  WA_MC02M_2SCL-KTPNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC02M_2SCL 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_MC02M_2SCL 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_MC02M_2SCL INTO WA_MC02M_2SCL.


*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 AKTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_2SCL-AKTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_2SCL-AKTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_2SCL-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_2SCL-EMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KONNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_2SCL-KONNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_2SCL-KONNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_2SCL-LMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_2SCL-LMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_2SCL-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_2SCL-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MC02M_2SCL-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC02M_2SCL-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_MC02M_2SCL_STR, 
AFNAM TYPE STRING,
AKTNR TYPE STRING,
BSGRU TYPE STRING,
BWAPPLNM TYPE STRING,
BWVORG TYPE STRING,
EBELP TYPE STRING,
ELIKZ TYPE STRING,
EMATN TYPE STRING,
EREKZ TYPE STRING,
KONNR TYPE STRING,
KTPNR TYPE STRING,
LGORT TYPE STRING,
LMEIN TYPE STRING,
MATKL TYPE STRING,
MATNR TYPE STRING,
MEINS TYPE STRING,
NETPR TYPE STRING,
PEINH TYPE STRING,
PSTYP TYPE STRING,
RESLO TYPE STRING,
TXZ01 TYPE STRING,
UMREN TYPE STRING,
UMREZ TYPE STRING,
WEBRE TYPE STRING,
WEPOS TYPE STRING,
WERKS TYPE STRING,
XERSY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC02M_2SCL_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_MC02M_2SCL_STR-AFNAM sy-vline 
WA_MC02M_2SCL_STR-AKTNR sy-vline 
WA_MC02M_2SCL_STR-BSGRU sy-vline 
WA_MC02M_2SCL_STR-BWAPPLNM sy-vline 
WA_MC02M_2SCL_STR-BWVORG sy-vline 
WA_MC02M_2SCL_STR-EBELP sy-vline 
WA_MC02M_2SCL_STR-ELIKZ sy-vline 
WA_MC02M_2SCL_STR-EMATN sy-vline 
WA_MC02M_2SCL_STR-EREKZ sy-vline 
WA_MC02M_2SCL_STR-KONNR sy-vline 
WA_MC02M_2SCL_STR-KTPNR sy-vline 
WA_MC02M_2SCL_STR-LGORT sy-vline 
WA_MC02M_2SCL_STR-LMEIN sy-vline 
WA_MC02M_2SCL_STR-MATKL sy-vline 
WA_MC02M_2SCL_STR-MATNR sy-vline 
WA_MC02M_2SCL_STR-MEINS sy-vline 
WA_MC02M_2SCL_STR-NETPR sy-vline 
WA_MC02M_2SCL_STR-PEINH sy-vline 
WA_MC02M_2SCL_STR-PSTYP sy-vline 
WA_MC02M_2SCL_STR-RESLO sy-vline 
WA_MC02M_2SCL_STR-TXZ01 sy-vline 
WA_MC02M_2SCL_STR-UMREN sy-vline 
WA_MC02M_2SCL_STR-UMREZ sy-vline 
WA_MC02M_2SCL_STR-WEBRE sy-vline 
WA_MC02M_2SCL_STR-WEPOS sy-vline 
WA_MC02M_2SCL_STR-WERKS sy-vline 
WA_MC02M_2SCL_STR-XERSY sy-vline      INTO ld_text SEPARATED BY SPACE.

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