ABAP Select data from SAP table SHSMDFKKZA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHSMDFKKZA
*  INTO TABLE @DATA(IT_SHSMDFKKZA2).
*--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_SHSMDFKKZA INDEX 1 INTO DATA(WA_SHSMDFKKZA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHSMDFKKZA>-MANDT = 1.
<SHSMDFKKZA>-NRZAA = 1.
<SHSMDFKKZA>-PYBUK = 1.
<SHSMDFKKZA>-WAERS = 1.
<SHSMDFKKZA>-FAEDN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHSMDFKKZA-HBKID, sy-vline,
  WA_SHSMDFKKZA-PYMET, sy-vline,
  WA_SHSMDFKKZA-PYBEL, sy-vline,
  WA_SHSMDFKKZA-BUDAT, sy-vline,
  WA_SHSMDFKKZA-ERNAM, sy-vline,
  WA_SHSMDFKKZA-CPUDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SHSMDFKKZA 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_SHSMDFKKZA 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_SHSMDFKKZA INTO WA_SHSMDFKKZA.


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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SHSMDFKKZA-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMDFKKZA-SEGMENT.
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_SHSMDFKKZA_STR, 
MANDT TYPE STRING,
NRZAA TYPE STRING,
PYBUK TYPE STRING,
WAERS TYPE STRING,
FAEDN TYPE STRING,
HBKID TYPE STRING,
PYMET TYPE STRING,
PYBEL TYPE STRING,
BUDAT TYPE STRING,
ERNAM TYPE STRING,
CPUDT TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHSMDFKKZA_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_SHSMDFKKZA_STR-MANDT sy-vline 
WA_SHSMDFKKZA_STR-NRZAA sy-vline 
WA_SHSMDFKKZA_STR-PYBUK sy-vline 
WA_SHSMDFKKZA_STR-WAERS sy-vline 
WA_SHSMDFKKZA_STR-FAEDN sy-vline 
WA_SHSMDFKKZA_STR-HBKID sy-vline 
WA_SHSMDFKKZA_STR-PYMET sy-vline 
WA_SHSMDFKKZA_STR-PYBEL sy-vline 
WA_SHSMDFKKZA_STR-BUDAT sy-vline 
WA_SHSMDFKKZA_STR-ERNAM sy-vline 
WA_SHSMDFKKZA_STR-CPUDT sy-vline 
WA_SHSMDFKKZA_STR-BUKRS sy-vline 
WA_SHSMDFKKZA_STR-GSBER sy-vline 
WA_SHSMDFKKZA_STR-SEGMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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