ABAP Select data from SAP table CMBSCPSAP102 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CMBSCPSAP102 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 CMBSCPSAP102. 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 CMBSCPSAP102 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_CMBSCPSAP102 TYPE STANDARD TABLE OF CMBSCPSAP102,
      WA_CMBSCPSAP102 TYPE CMBSCPSAP102,
      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: <CMBSCPSAP102> TYPE CMBSCPSAP102.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CMBSCPSAP102.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CMBSCPSAP102
  INTO TABLE IT_CMBSCPSAP102.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMBSCPSAP102
*  INTO TABLE @DATA(IT_CMBSCPSAP1022).
*--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_CMBSCPSAP102 INDEX 1 INTO DATA(WA_CMBSCPSAP1022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CMBSCPSAP102 ASSIGNING <CMBSCPSAP102>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMBSCPSAP102>-CLIENT = 1.
<CMBSCPSAP102>-CDB_KEY_GUID = 1.
<CMBSCPSAP102>-VARNUMH = 1.
<CMBSCPSAP102>-STFKZ = 1.
<CMBSCPSAP102>-KZBZG = 1.

ENDLOOP.

LOOP AT IT_CMBSCPSAP102 INTO WA_CMBSCPSAP102.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMBSCPSAP102-KUMZA, sy-vline,
  WA_CMBSCPSAP102-KUMNE, sy-vline,
  WA_CMBSCPSAP102-EXPNT, sy-vline,
  WA_CMBSCPSAP102-MWSK1, sy-vline,
  WA_CMBSCPSAP102-MWSK2, sy-vline,
  WA_CMBSCPSAP102-KONMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMBSCPSAP102 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_CMBSCPSAP102 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_CMBSCPSAP102 INTO WA_CMBSCPSAP102.


*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 KONMS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMBSCPSAP102-KONMS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMBSCPSAP102-KONMS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMBSCPSAP102-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMBSCPSAP102-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_CMBSCPSAP102_STR, 
CLIENT TYPE STRING,
CDB_KEY_GUID TYPE STRING,
VARNUMH TYPE STRING,
STFKZ TYPE STRING,
KZBZG TYPE STRING,
KUMZA TYPE STRING,
KUMNE TYPE STRING,
EXPNT TYPE STRING,
MWSK1 TYPE STRING,
MWSK2 TYPE STRING,
KONMS TYPE STRING,
KONWS TYPE STRING,
KSTBM TYPE STRING,
MEINS TYPE STRING,
KZNEP TYPE STRING,
MXWRT TYPE STRING,
GKWRT TYPE STRING,
PTERM TYPE STRING,
VALDT TYPE STRING,
VALTG TYPE STRING,
KOMXWRT TYPE STRING,
KWAEH TYPE STRING,
ANZAUF TYPE STRING,
MIKBAS TYPE STRING,
MXKBAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMBSCPSAP102_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_CMBSCPSAP102_STR-CLIENT sy-vline 
WA_CMBSCPSAP102_STR-CDB_KEY_GUID sy-vline 
WA_CMBSCPSAP102_STR-VARNUMH sy-vline 
WA_CMBSCPSAP102_STR-STFKZ sy-vline 
WA_CMBSCPSAP102_STR-KZBZG sy-vline 
WA_CMBSCPSAP102_STR-KUMZA sy-vline 
WA_CMBSCPSAP102_STR-KUMNE sy-vline 
WA_CMBSCPSAP102_STR-EXPNT sy-vline 
WA_CMBSCPSAP102_STR-MWSK1 sy-vline 
WA_CMBSCPSAP102_STR-MWSK2 sy-vline 
WA_CMBSCPSAP102_STR-KONMS sy-vline 
WA_CMBSCPSAP102_STR-KONWS sy-vline 
WA_CMBSCPSAP102_STR-KSTBM sy-vline 
WA_CMBSCPSAP102_STR-MEINS sy-vline 
WA_CMBSCPSAP102_STR-KZNEP sy-vline 
WA_CMBSCPSAP102_STR-MXWRT sy-vline 
WA_CMBSCPSAP102_STR-GKWRT sy-vline 
WA_CMBSCPSAP102_STR-PTERM sy-vline 
WA_CMBSCPSAP102_STR-VALDT sy-vline 
WA_CMBSCPSAP102_STR-VALTG sy-vline 
WA_CMBSCPSAP102_STR-KOMXWRT sy-vline 
WA_CMBSCPSAP102_STR-KWAEH sy-vline 
WA_CMBSCPSAP102_STR-ANZAUF sy-vline 
WA_CMBSCPSAP102_STR-MIKBAS sy-vline 
WA_CMBSCPSAP102_STR-MXKBAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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