ABAP Select data from SAP table CM60X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CM60X 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 CM60X. 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 CM60X 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_CM60X TYPE STANDARD TABLE OF CM60X,
      WA_CM60X TYPE CM60X,
      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: <CM60X> TYPE CM60X.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CM60X.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CM60X
  INTO TABLE IT_CM60X.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CM60X
*  INTO TABLE @DATA(IT_CM60X2).
*--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_CM60X INDEX 1 INTO DATA(WA_CM60X2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CM60X ASSIGNING <CM60X>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CM60X>-MATNR = 1.
<CM60X>-WERKS = 1.
<CM60X>-BERID = 1.
<CM60X>-BERTY = 1.
<CM60X>-PLNKZ = 1.

ENDLOOP.

LOOP AT IT_CM60X INTO WA_CM60X.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CM60X-ZUVKZ, sy-vline,
  WA_CM60X-LISKZ, sy-vline,
  WA_CM60X-KUMKZ, sy-vline,
  WA_CM60X-PDATU, sy-vline,
  WA_CM60X-PLNMG, sy-vline,
  WA_CM60X-BDZEI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CM60X 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_CM60X 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_CM60X INTO WA_CM60X.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CM60X-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CM60X-MATNR.
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_CM60X_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
BERID TYPE STRING,
BERTY TYPE STRING,
PLNKZ TYPE STRING,
ZUVKZ TYPE STRING,
LISKZ TYPE STRING,
KUMKZ TYPE STRING,
PDATU TYPE STRING,
PLNMG TYPE STRING,
BDZEI TYPE STRING,
AENKZ TYPE STRING,
PICID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CM60X_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_CM60X_STR-MATNR sy-vline 
WA_CM60X_STR-WERKS sy-vline 
WA_CM60X_STR-BERID sy-vline 
WA_CM60X_STR-BERTY sy-vline 
WA_CM60X_STR-PLNKZ sy-vline 
WA_CM60X_STR-ZUVKZ sy-vline 
WA_CM60X_STR-LISKZ sy-vline 
WA_CM60X_STR-KUMKZ sy-vline 
WA_CM60X_STR-PDATU sy-vline 
WA_CM60X_STR-PLNMG sy-vline 
WA_CM60X_STR-BDZEI sy-vline 
WA_CM60X_STR-AENKZ sy-vline 
WA_CM60X_STR-PICID sy-vline      INTO ld_text SEPARATED BY SPACE.

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