ABAP Select data from SAP table CM61V into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CM61V 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 CM61V. 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 CM61V 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_CM61V TYPE STANDARD TABLE OF CM61V,
      WA_CM61V TYPE CM61V,
      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: <CM61V> TYPE CM61V.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CM61V.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CM61V
  INTO TABLE IT_CM61V.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CM61V
*  INTO TABLE @DATA(IT_CM61V2).
*--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_CM61V INDEX 1 INTO DATA(WA_CM61V2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CM61V ASSIGNING <CM61V>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CM61V>-VFPST = 1.
<CM61V>-RCODE = 1.
<CM61V>-KZPSX = 1.
<CM61V>-KZVEX = 1.
<CM61V>-PRMOD = 1.

ENDLOOP.

LOOP AT IT_CM61V INTO WA_CM61V.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CM61V-LGORT, sy-vline,
  WA_CM61V-CHARG, sy-vline,
  WA_CM61V-KZLGP, sy-vline,
  WA_CM61V-DIAFL, sy-vline,
  WA_CM61V-KZUEB, sy-vline,
  WA_CM61V-WKBST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CM61V 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_CM61V 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_CM61V INTO WA_CM61V.


*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 KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CM61V-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CM61V-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CM61V-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CM61V-PSPEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CM61V-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CM61V-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_CM61V_STR, 
VFPST TYPE STRING,
RCODE TYPE STRING,
KZPSX TYPE STRING,
KZVEX TYPE STRING,
PRMOD TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
KZLGP TYPE STRING,
DIAFL TYPE STRING,
KZUEB TYPE STRING,
WKBST TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPEL TYPE STRING,
ATPBT TYPE STRING,
MTVFP TYPE STRING,
PRRER TYPE STRING,
KUNNR TYPE STRING,
SOBKZ TYPE STRING,
FCBEA TYPE STRING,
FCODE TYPE STRING,
OKDBD TYPE STRING,
SUMZG TYPE STRING,
SUMAG TYPE STRING,
SUMBA TYPE STRING,
PRFLG TYPE STRING,
CHVPX TYPE STRING,
TRTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CM61V_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_CM61V_STR-VFPST sy-vline 
WA_CM61V_STR-RCODE sy-vline 
WA_CM61V_STR-KZPSX sy-vline 
WA_CM61V_STR-KZVEX sy-vline 
WA_CM61V_STR-PRMOD sy-vline 
WA_CM61V_STR-LGORT sy-vline 
WA_CM61V_STR-CHARG sy-vline 
WA_CM61V_STR-KZLGP sy-vline 
WA_CM61V_STR-DIAFL sy-vline 
WA_CM61V_STR-KZUEB sy-vline 
WA_CM61V_STR-WKBST sy-vline 
WA_CM61V_STR-KDAUF sy-vline 
WA_CM61V_STR-KDPOS sy-vline 
WA_CM61V_STR-PSPEL sy-vline 
WA_CM61V_STR-ATPBT sy-vline 
WA_CM61V_STR-MTVFP sy-vline 
WA_CM61V_STR-PRRER sy-vline 
WA_CM61V_STR-KUNNR sy-vline 
WA_CM61V_STR-SOBKZ sy-vline 
WA_CM61V_STR-FCBEA sy-vline 
WA_CM61V_STR-FCODE sy-vline 
WA_CM61V_STR-OKDBD sy-vline 
WA_CM61V_STR-SUMZG sy-vline 
WA_CM61V_STR-SUMAG sy-vline 
WA_CM61V_STR-SUMBA sy-vline 
WA_CM61V_STR-PRFLG sy-vline 
WA_CM61V_STR-CHVPX sy-vline 
WA_CM61V_STR-TRTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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