ABAP Select data from SAP table SHSMDFKKINVDOCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHSMDFKKINVDOCH
*  INTO TABLE @DATA(IT_SHSMDFKKINVDOCH2).
*--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_SHSMDFKKINVDOCH INDEX 1 INTO DATA(WA_SHSMDFKKINVDOCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHSMDFKKINVDOCH>-MANDT = 1.
<SHSMDFKKINVDOCH>-INVDOCNO = 1.
<SHSMDFKKINVDOCH>-GPART = 1.
<SHSMDFKKINVDOCH>-VKONT = 1.
<SHSMDFKKINVDOCH>-BUDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHSMDFKKINVDOCH-FIKEY, sy-vline,
  WA_SHSMDFKKINVDOCH-INVOICED, sy-vline,
  WA_SHSMDFKKINVDOCH-PRELIMINARY, sy-vline,
  WA_SHSMDFKKINVDOCH-SIMULATED, sy-vline,
  WA_SHSMDFKKINVDOCH-REVERSEDDOC, sy-vline,
  WA_SHSMDFKKINVDOCH-REVERSALDOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SHSMDFKKINVDOCH 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_SHSMDFKKINVDOCH 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_SHSMDFKKINVDOCH INTO WA_SHSMDFKKINVDOCH.


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

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

*Conversion exit EXBEL, internal->external for field EXBEL
CALL FUNCTION 'CONVERSION_EXIT_EXBEL_OUTPUT'
  EXPORTING
    input =                      WA_SHSMDFKKINVDOCH-EXBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMDFKKINVDOCH-EXBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ABWVK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SHSMDFKKINVDOCH-ABWVK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMDFKKINVDOCH-ABWVK.
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_SHSMDFKKINVDOCH_STR, 
MANDT TYPE STRING,
INVDOCNO TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
BUDAT TYPE STRING,
FIKEY TYPE STRING,
INVOICED TYPE STRING,
PRELIMINARY TYPE STRING,
SIMULATED TYPE STRING,
REVERSEDDOC TYPE STRING,
REVERSALDOC TYPE STRING,
EXBEL TYPE STRING,
ABWVK TYPE STRING,
INV_PROCESS TYPE STRING,
DOCTYPE TYPE STRING,
CRNAME TYPE STRING,
CRDATE TYPE STRING,
CRTIME TYPE STRING,
BUKRS TYPE STRING,
XPCPT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHSMDFKKINVDOCH_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_SHSMDFKKINVDOCH_STR-MANDT sy-vline 
WA_SHSMDFKKINVDOCH_STR-INVDOCNO sy-vline 
WA_SHSMDFKKINVDOCH_STR-GPART sy-vline 
WA_SHSMDFKKINVDOCH_STR-VKONT sy-vline 
WA_SHSMDFKKINVDOCH_STR-BUDAT sy-vline 
WA_SHSMDFKKINVDOCH_STR-FIKEY sy-vline 
WA_SHSMDFKKINVDOCH_STR-INVOICED sy-vline 
WA_SHSMDFKKINVDOCH_STR-PRELIMINARY sy-vline 
WA_SHSMDFKKINVDOCH_STR-SIMULATED sy-vline 
WA_SHSMDFKKINVDOCH_STR-REVERSEDDOC sy-vline 
WA_SHSMDFKKINVDOCH_STR-REVERSALDOC sy-vline 
WA_SHSMDFKKINVDOCH_STR-EXBEL sy-vline 
WA_SHSMDFKKINVDOCH_STR-ABWVK sy-vline 
WA_SHSMDFKKINVDOCH_STR-INV_PROCESS sy-vline 
WA_SHSMDFKKINVDOCH_STR-DOCTYPE sy-vline 
WA_SHSMDFKKINVDOCH_STR-CRNAME sy-vline 
WA_SHSMDFKKINVDOCH_STR-CRDATE sy-vline 
WA_SHSMDFKKINVDOCH_STR-CRTIME sy-vline 
WA_SHSMDFKKINVDOCH_STR-BUKRS sy-vline 
WA_SHSMDFKKINVDOCH_STR-XPCPT sy-vline      INTO ld_text SEPARATED BY SPACE.

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