ABAP Select data from SAP table CM61O into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CM61O 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 CM61O. 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 CM61O 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_CM61O TYPE STANDARD TABLE OF CM61O,
      WA_CM61O TYPE CM61O,
      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: <CM61O> TYPE CM61O.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CM61O.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CM61O
  INTO TABLE IT_CM61O.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CM61O
*  INTO TABLE @DATA(IT_CM61O2).
*--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_CM61O INDEX 1 INTO DATA(WA_CM61O2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CM61O ASSIGNING <CM61O>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CM61O>-TRTYP = 1.
<CM61O>-KOTYP = 1.
<CM61O>-KOBEA = 1.
<CM61O>-VFPRF = 1.
<CM61O>-KZAKP = 1.

ENDLOOP.

LOOP AT IT_CM61O INTO WA_CM61O.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CM61O-VFDIA, sy-vline,
  WA_CM61O-VFERG, sy-vline,
  WA_CM61O-VFMNG, sy-vline,
  WA_CM61O-GBDAT, sy-vline,
  WA_CM61O-VFDAT, sy-vline,
  WA_CM61O-DARKX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CM61O 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_CM61O 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_CM61O INTO WA_CM61O.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CM61O_STR, 
TRTYP TYPE STRING,
KOTYP TYPE STRING,
KOBEA TYPE STRING,
VFPRF TYPE STRING,
KZAKP TYPE STRING,
VFDIA TYPE STRING,
VFERG TYPE STRING,
VFMNG TYPE STRING,
GBDAT TYPE STRING,
VFDAT TYPE STRING,
DARKX TYPE STRING,
NODIA TYPE STRING,
AUTHO TYPE STRING,
UNLOX TYPE STRING,
LOCKX TYPE STRING,
STPRE TYPE STRING,
KNTPX TYPE STRING,
HZFLG TYPE STRING,
VTERM TYPE STRING,
AUSSC TYPE STRING,
MONTX TYPE STRING,
FKDIF TYPE STRING,
MEMOX TYPE STRING,
XCODE TYPE STRING,
NOWEB TYPE STRING,
NOCFX TYPE STRING,
BAPIX TYPE STRING,
BAPCO TYPE STRING,
STAUF TYPE STRING,
SEQUE TYPE STRING,
ITEMR TYPE STRING,
NOAVM TYPE STRING,
APORL TYPE STRING,
WTPST TYPE STRING,
COLUP TYPE STRING,
UPDAT TYPE STRING,
RESEND TYPE STRING,
MASS_API TYPE STRING,
AUTH_XPO_MOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CM61O_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_CM61O_STR-TRTYP sy-vline 
WA_CM61O_STR-KOTYP sy-vline 
WA_CM61O_STR-KOBEA sy-vline 
WA_CM61O_STR-VFPRF sy-vline 
WA_CM61O_STR-KZAKP sy-vline 
WA_CM61O_STR-VFDIA sy-vline 
WA_CM61O_STR-VFERG sy-vline 
WA_CM61O_STR-VFMNG sy-vline 
WA_CM61O_STR-GBDAT sy-vline 
WA_CM61O_STR-VFDAT sy-vline 
WA_CM61O_STR-DARKX sy-vline 
WA_CM61O_STR-NODIA sy-vline 
WA_CM61O_STR-AUTHO sy-vline 
WA_CM61O_STR-UNLOX sy-vline 
WA_CM61O_STR-LOCKX sy-vline 
WA_CM61O_STR-STPRE sy-vline 
WA_CM61O_STR-KNTPX sy-vline 
WA_CM61O_STR-HZFLG sy-vline 
WA_CM61O_STR-VTERM sy-vline 
WA_CM61O_STR-AUSSC sy-vline 
WA_CM61O_STR-MONTX sy-vline 
WA_CM61O_STR-FKDIF sy-vline 
WA_CM61O_STR-MEMOX sy-vline 
WA_CM61O_STR-XCODE sy-vline 
WA_CM61O_STR-NOWEB sy-vline 
WA_CM61O_STR-NOCFX sy-vline 
WA_CM61O_STR-BAPIX sy-vline 
WA_CM61O_STR-BAPCO sy-vline 
WA_CM61O_STR-STAUF sy-vline 
WA_CM61O_STR-SEQUE sy-vline 
WA_CM61O_STR-ITEMR sy-vline 
WA_CM61O_STR-NOAVM sy-vline 
WA_CM61O_STR-APORL sy-vline 
WA_CM61O_STR-WTPST sy-vline 
WA_CM61O_STR-COLUP sy-vline 
WA_CM61O_STR-UPDAT sy-vline 
WA_CM61O_STR-RESEND sy-vline 
WA_CM61O_STR-MASS_API sy-vline 
WA_CM61O_STR-AUTH_XPO_MOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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