ABAP Select data from SAP table SI_FKKMAKOV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SI_FKKMAKOV
*  INTO TABLE @DATA(IT_SI_FKKMAKOV2).
*--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_SI_FKKMAKOV INDEX 1 INTO DATA(WA_SI_FKKMAKOV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SI_FKKMAKOV>-XMSTV = 1.
<SI_FKKMAKOV>-MVLNR = 1.
<SI_FKKMAKOV>-GSALM = 1.
<SI_FKKMAKOV>-XSIOP = 1.
<SI_FKKMAKOV>-XSIMV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SI_FKKMAKOV-XBEPO, sy-vline,
  WA_SI_FKKMAKOV-GDUNN, sy-vline,
  WA_SI_FKKMAKOV-COLLECT, sy-vline,
  WA_SI_FKKMAKOV-BROKER, sy-vline,
  WA_SI_FKKMAKOV-BRO_CONTRACT, sy-vline,
  WA_SI_FKKMAKOV-ZMGRUP_FIELD1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SI_FKKMAKOV 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_SI_FKKMAKOV 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_SI_FKKMAKOV INTO WA_SI_FKKMAKOV.


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

*Conversion exit ALPHA, internal->external for field BRO_CONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_FKKMAKOV-BRO_CONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_FKKMAKOV-BRO_CONTRACT.
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_SI_FKKMAKOV_STR, 
XMSTV TYPE STRING,
MVLNR TYPE STRING,
GSALM TYPE STRING,
XSIOP TYPE STRING,
XSIMV TYPE STRING,
XBEPO TYPE STRING,
GDUNN TYPE STRING,
COLLECT TYPE STRING,
BROKER TYPE STRING,
BRO_CONTRACT TYPE STRING,
ZMGRUP_FIELD1 TYPE STRING,
ZMGRUP_FIELD2 TYPE STRING,
ZMGRUP_FIELD3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SI_FKKMAKOV_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_SI_FKKMAKOV_STR-XMSTV sy-vline 
WA_SI_FKKMAKOV_STR-MVLNR sy-vline 
WA_SI_FKKMAKOV_STR-GSALM sy-vline 
WA_SI_FKKMAKOV_STR-XSIOP sy-vline 
WA_SI_FKKMAKOV_STR-XSIMV sy-vline 
WA_SI_FKKMAKOV_STR-XBEPO sy-vline 
WA_SI_FKKMAKOV_STR-GDUNN sy-vline 
WA_SI_FKKMAKOV_STR-COLLECT sy-vline 
WA_SI_FKKMAKOV_STR-BROKER sy-vline 
WA_SI_FKKMAKOV_STR-BRO_CONTRACT sy-vline 
WA_SI_FKKMAKOV_STR-ZMGRUP_FIELD1 sy-vline 
WA_SI_FKKMAKOV_STR-ZMGRUP_FIELD2 sy-vline 
WA_SI_FKKMAKOV_STR-ZMGRUP_FIELD3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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