ABAP Select data from SAP table CPFMMATSTCKDEX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPFMMATSTCKDEX
*  INTO TABLE @DATA(IT_CPFMMATSTCKDEX2).
*--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_CPFMMATSTCKDEX INDEX 1 INTO DATA(WA_CPFMMATSTCKDEX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPFMMATSTCKDEX>-MANDT = 1.
<CPFMMATSTCKDEX>-MATERIALDOCUMENTKEY1 = 1.
<CPFMMATSTCKDEX>-MATERIALDOCUMENTKEY2 = 1.
<CPFMMATSTCKDEX>-MATERIALDOCUMENTKEY3 = 1.
<CPFMMATSTCKDEX>-MATERIALDOCUMENTKEY4 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPFMMATSTCKDEX-MATERIALDOCUMENTKEY5, sy-vline,
  WA_CPFMMATSTCKDEX-MATERIALDOCUMENTKEY6, sy-vline,
  WA_CPFMMATSTCKDEX-COMPANYCODE, sy-vline,
  WA_CPFMMATSTCKDEX-PLANT, sy-vline,
  WA_CPFMMATSTCKDEX-MATERIAL, sy-vline,
  WA_CPFMMATSTCKDEX-STORAGELOCATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPFMMATSTCKDEX 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_CPFMMATSTCKDEX 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_CPFMMATSTCKDEX INTO WA_CPFMMATSTCKDEX.


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

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

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

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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CPFMMATSTCKDEX-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPFMMATSTCKDEX-MATERIALDOCUMENTYEAR.
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_CPFMMATSTCKDEX_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENTKEY1 TYPE STRING,
MATERIALDOCUMENTKEY2 TYPE STRING,
MATERIALDOCUMENTKEY3 TYPE STRING,
MATERIALDOCUMENTKEY4 TYPE STRING,
MATERIALDOCUMENTKEY5 TYPE STRING,
MATERIALDOCUMENTKEY6 TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
MATERIAL TYPE STRING,
STORAGELOCATION TYPE STRING,
SUPPLIER TYPE STRING,
CUSTOMER TYPE STRING,
INVENTORYSTOCKTYPE TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
POSTINGDATE TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
CALENDARMONTH TYPE STRING,
MATERIALGROUP TYPE STRING,
MATLWRHSSTKQTYINMATLBASEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPFMMATSTCKDEX_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_CPFMMATSTCKDEX_STR-MANDT sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTKEY1 sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTKEY2 sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTKEY3 sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTKEY4 sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTKEY5 sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTKEY6 sy-vline 
WA_CPFMMATSTCKDEX_STR-COMPANYCODE sy-vline 
WA_CPFMMATSTCKDEX_STR-PLANT sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIAL sy-vline 
WA_CPFMMATSTCKDEX_STR-STORAGELOCATION sy-vline 
WA_CPFMMATSTCKDEX_STR-SUPPLIER sy-vline 
WA_CPFMMATSTCKDEX_STR-CUSTOMER sy-vline 
WA_CPFMMATSTCKDEX_STR-INVENTORYSTOCKTYPE sy-vline 
WA_CPFMMATSTCKDEX_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_CPFMMATSTCKDEX_STR-POSTINGDATE sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALBASEUNIT sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_CPFMMATSTCKDEX_STR-CALENDARMONTH sy-vline 
WA_CPFMMATSTCKDEX_STR-MATERIALGROUP sy-vline 
WA_CPFMMATSTCKDEX_STR-MATLWRHSSTKQTYINMATLBASEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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