ABAP Select data from SAP table CCNMATSTKSUM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCNMATSTKSUM
*  INTO TABLE @DATA(IT_CCNMATSTKSUM2).
*--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_CCNMATSTKSUM INDEX 1 INTO DATA(WA_CCNMATSTKSUM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCNMATSTKSUM>-MANDT = 1.
<CCNMATSTKSUM>-STOCKIDENTIFYINGMATERIAL = 1.
<CCNMATSTKSUM>-PLANT = 1.
<CCNMATSTKSUM>-STOCKIDENTIFYINGBATCH = 1.
<CCNMATSTKSUM>-INVENTORYVALUATIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCNMATSTKSUM-GOODSMOVEMENTTYPE, sy-vline,
  WA_CCNMATSTKSUM-STOCKIDFGSTORAGELOCATION, sy-vline,
  WA_CCNMATSTKSUM-MATERIALBASEUNIT, sy-vline,
  WA_CCNMATSTKSUM-COMPANYCODE, sy-vline,
  WA_CCNMATSTKSUM-INVENTORYSPECIALSTOCKTYPE, sy-vline,
  WA_CCNMATSTKSUM-COMPANYCODECURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCNMATSTKSUM 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_CCNMATSTKSUM 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_CCNMATSTKSUM INTO WA_CCNMATSTKSUM.


*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 STOCKIDENTIFYINGMATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CCNMATSTKSUM-STOCKIDENTIFYINGMATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCNMATSTKSUM-STOCKIDENTIFYINGMATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCNMATSTKSUM-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCNMATSTKSUM-MATERIALBASEUNIT.
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_CCNMATSTKSUM_STR, 
MANDT TYPE STRING,
STOCKIDENTIFYINGMATERIAL TYPE STRING,
PLANT TYPE STRING,
STOCKIDENTIFYINGBATCH TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
STOCKIDFGSTORAGELOCATION TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
COMPANYCODE TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
MATERIALTYPE TYPE STRING,
MATERIALTYPENAME TYPE STRING,
MATERIALDESCRIPTION TYPE STRING,
STANDARDPRICEINCOCODECRCY TYPE STRING,
COMPANYCODENAME TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
PLANTNAME TYPE STRING,
MATLSTKINCRQTYINMATLBASEUNIT TYPE STRING,
GOODSMOVEMENTSTKAMTINCCCRCY TYPE STRING,
MATLSTKDECRQTYINMATLBASEUNIT TYPE STRING,
MATLSTKDECRQTYAMOUNTINCCCRCY TYPE STRING,
PERIODSTARTSTOCKQUANTITY TYPE STRING,
PERIODSTARTSTOCKAMOUNTINCOCRCY TYPE STRING,
MATLSTKPERDSTRTPRICEINCCCRCY TYPE STRING,
PERIODENDSTOCKQUANTITY TYPE STRING,
PERIODENDSTOCKAMOUNTINCOCRCY TYPE STRING,
MATLSTKPERDENDPRICEINCCCRCY TYPE STRING,
MATLSTKCREDITREVALAMTINCCCRCY TYPE STRING,
MATLSTKDEBITREVALAMTINCCCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCNMATSTKSUM_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_CCNMATSTKSUM_STR-MANDT sy-vline 
WA_CCNMATSTKSUM_STR-STOCKIDENTIFYINGMATERIAL sy-vline 
WA_CCNMATSTKSUM_STR-PLANT sy-vline 
WA_CCNMATSTKSUM_STR-STOCKIDENTIFYINGBATCH sy-vline 
WA_CCNMATSTKSUM_STR-INVENTORYVALUATIONTYPE sy-vline 
WA_CCNMATSTKSUM_STR-GOODSMOVEMENTTYPE sy-vline 
WA_CCNMATSTKSUM_STR-STOCKIDFGSTORAGELOCATION sy-vline 
WA_CCNMATSTKSUM_STR-MATERIALBASEUNIT sy-vline 
WA_CCNMATSTKSUM_STR-COMPANYCODE sy-vline 
WA_CCNMATSTKSUM_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_CCNMATSTKSUM_STR-COMPANYCODECURRENCY sy-vline 
WA_CCNMATSTKSUM_STR-MATERIALGROUP sy-vline 
WA_CCNMATSTKSUM_STR-MATERIALGROUPNAME sy-vline 
WA_CCNMATSTKSUM_STR-MATERIALTYPE sy-vline 
WA_CCNMATSTKSUM_STR-MATERIALTYPENAME sy-vline 
WA_CCNMATSTKSUM_STR-MATERIALDESCRIPTION sy-vline 
WA_CCNMATSTKSUM_STR-STANDARDPRICEINCOCODECRCY sy-vline 
WA_CCNMATSTKSUM_STR-COMPANYCODENAME sy-vline 
WA_CCNMATSTKSUM_STR-STORAGELOCATIONNAME sy-vline 
WA_CCNMATSTKSUM_STR-PLANTNAME sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKINCRQTYINMATLBASEUNIT sy-vline 
WA_CCNMATSTKSUM_STR-GOODSMOVEMENTSTKAMTINCCCRCY sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKDECRQTYINMATLBASEUNIT sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKDECRQTYAMOUNTINCCCRCY sy-vline 
WA_CCNMATSTKSUM_STR-PERIODSTARTSTOCKQUANTITY sy-vline 
WA_CCNMATSTKSUM_STR-PERIODSTARTSTOCKAMOUNTINCOCRCY sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKPERDSTRTPRICEINCCCRCY sy-vline 
WA_CCNMATSTKSUM_STR-PERIODENDSTOCKQUANTITY sy-vline 
WA_CCNMATSTKSUM_STR-PERIODENDSTOCKAMOUNTINCOCRCY sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKPERDENDPRICEINCCCRCY sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKCREDITREVALAMTINCCCRCY sy-vline 
WA_CCNMATSTKSUM_STR-MATLSTKDEBITREVALAMTINCCCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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