ABAP Select data from SAP table CMM_MTM_SO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMM_MTM_SO
*  INTO TABLE @DATA(IT_CMM_MTM_SO2).
*--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_CMM_MTM_SO INDEX 1 INTO DATA(WA_CMM_MTM_SO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMM_MTM_SO>-MANDT = 1.
<CMM_MTM_SO>-VBELN = 1.
<CMM_MTM_SO>-POSNR = 1.
<CMM_MTM_SO>-KAPPL = 1.
<CMM_MTM_SO>-KSCHL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMM_MTM_SO-COMMODITY, sy-vline,
  WA_CMM_MTM_SO-VBTYP_N, sy-vline,
  WA_CMM_MTM_SO-VBELNN, sy-vline,
  WA_CMM_MTM_SO-POSNN, sy-vline,
  WA_CMM_MTM_SO-VERSION, sy-vline,
  WA_CMM_MTM_SO-EVAL_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMM_MTM_SO 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_CMM_MTM_SO 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_CMM_MTM_SO INTO WA_CMM_MTM_SO.


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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field COMMODITY_RF_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMM_MTM_SO-COMMODITY_RF_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMM_MTM_SO-COMMODITY_RF_UOM.
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_CMM_MTM_SO_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
COMMODITY TYPE STRING,
VBTYP_N TYPE STRING,
VBELNN TYPE STRING,
POSNN TYPE STRING,
VERSION TYPE STRING,
EVAL_DATE TYPE STRING,
VALID_FROM_TST TYPE STRING,
VALID_TO_TST TYPE STRING,
VALID_FROM_DATE TYPE STRING,
VALID_FROM_TIME TYPE STRING,
VALID_TO_DATE TYPE STRING,
VALID_TO_TIME TYPE STRING,
VERSION_MAX TYPE STRING,
BUKRS TYPE STRING,
KUNNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
DATE_DISCOUNTING TYPE STRING,
DATE_PYMNT TYPE STRING,
CGROUP TYPE STRING,
CGROUP_CAT TYPE STRING,
ERDAT TYPE STRING,
KWERT TYPE STRING,
KWERT_DISC TYPE STRING,
KWERT_DOC TYPE STRING,
STWAE TYPE STRING,
WAERK TYPE STRING,
MGAME TYPE STRING,
VRKME TYPE STRING,
MGLME TYPE STRING,
LAGME TYPE STRING,
MGAME_ADJ TYPE STRING,
MGLME_ADJ TYPE STRING,
COMMODITY_QUAN TYPE STRING,
COMMODITY_ADJ TYPE STRING,
COMMODITY_UOM TYPE STRING,
COMMODITY_RF_UOM TYPE STRING,
DCSID TYPE STRING,
MIC TYPE STRING,
TENOR TYPE STRING,
KEYDATE TYPE STRING,
DCS_REPORTING_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMM_MTM_SO_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_CMM_MTM_SO_STR-MANDT sy-vline 
WA_CMM_MTM_SO_STR-VBELN sy-vline 
WA_CMM_MTM_SO_STR-POSNR sy-vline 
WA_CMM_MTM_SO_STR-KAPPL sy-vline 
WA_CMM_MTM_SO_STR-KSCHL sy-vline 
WA_CMM_MTM_SO_STR-COMMODITY sy-vline 
WA_CMM_MTM_SO_STR-VBTYP_N sy-vline 
WA_CMM_MTM_SO_STR-VBELNN sy-vline 
WA_CMM_MTM_SO_STR-POSNN sy-vline 
WA_CMM_MTM_SO_STR-VERSION sy-vline 
WA_CMM_MTM_SO_STR-EVAL_DATE sy-vline 
WA_CMM_MTM_SO_STR-VALID_FROM_TST sy-vline 
WA_CMM_MTM_SO_STR-VALID_TO_TST sy-vline 
WA_CMM_MTM_SO_STR-VALID_FROM_DATE sy-vline 
WA_CMM_MTM_SO_STR-VALID_FROM_TIME sy-vline 
WA_CMM_MTM_SO_STR-VALID_TO_DATE sy-vline 
WA_CMM_MTM_SO_STR-VALID_TO_TIME sy-vline 
WA_CMM_MTM_SO_STR-VERSION_MAX sy-vline 
WA_CMM_MTM_SO_STR-BUKRS sy-vline 
WA_CMM_MTM_SO_STR-KUNNR sy-vline 
WA_CMM_MTM_SO_STR-MATNR sy-vline 
WA_CMM_MTM_SO_STR-WERKS sy-vline 
WA_CMM_MTM_SO_STR-VKORG sy-vline 
WA_CMM_MTM_SO_STR-VTWEG sy-vline 
WA_CMM_MTM_SO_STR-SPART sy-vline 
WA_CMM_MTM_SO_STR-DATE_DISCOUNTING sy-vline 
WA_CMM_MTM_SO_STR-DATE_PYMNT sy-vline 
WA_CMM_MTM_SO_STR-CGROUP sy-vline 
WA_CMM_MTM_SO_STR-CGROUP_CAT sy-vline 
WA_CMM_MTM_SO_STR-ERDAT sy-vline 
WA_CMM_MTM_SO_STR-KWERT sy-vline 
WA_CMM_MTM_SO_STR-KWERT_DISC sy-vline 
WA_CMM_MTM_SO_STR-KWERT_DOC sy-vline 
WA_CMM_MTM_SO_STR-STWAE sy-vline 
WA_CMM_MTM_SO_STR-WAERK sy-vline 
WA_CMM_MTM_SO_STR-MGAME sy-vline 
WA_CMM_MTM_SO_STR-VRKME sy-vline 
WA_CMM_MTM_SO_STR-MGLME sy-vline 
WA_CMM_MTM_SO_STR-LAGME sy-vline 
WA_CMM_MTM_SO_STR-MGAME_ADJ sy-vline 
WA_CMM_MTM_SO_STR-MGLME_ADJ sy-vline 
WA_CMM_MTM_SO_STR-COMMODITY_QUAN sy-vline 
WA_CMM_MTM_SO_STR-COMMODITY_ADJ sy-vline 
WA_CMM_MTM_SO_STR-COMMODITY_UOM sy-vline 
WA_CMM_MTM_SO_STR-COMMODITY_RF_UOM sy-vline 
WA_CMM_MTM_SO_STR-DCSID sy-vline 
WA_CMM_MTM_SO_STR-MIC sy-vline 
WA_CMM_MTM_SO_STR-TENOR sy-vline 
WA_CMM_MTM_SO_STR-KEYDATE sy-vline 
WA_CMM_MTM_SO_STR-DCS_REPORTING_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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