ABAP Select data from SAP table CIFSTKREF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CIFSTKREF
*  INTO TABLE @DATA(IT_CIFSTKREF2).
*--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_CIFSTKREF INDEX 1 INTO DATA(WA_CIFSTKREF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CIFSTKREF>-MATNR = 1.
<CIFSTKREF>-WERKS = 1.
<CIFSTKREF>-LGORT = 1.
<CIFSTKREF>-CHARG = 1.
<CIFSTKREF>-INSMK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CIFSTKREF-LIFNR, sy-vline,
  WA_CIFSTKREF-KUNNR, sy-vline,
  WA_CIFSTKREF-KDAUF, sy-vline,
  WA_CIFSTKREF-KDPOS, sy-vline,
  WA_CIFSTKREF-KDEIN, sy-vline,
  WA_CIFSTKREF-EBELN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CIFSTKREF 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_CIFSTKREF 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_CIFSTKREF INTO WA_CIFSTKREF.


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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CIFSTKREF-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CIFSTKREF-MEINS.
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_CIFSTKREF_STR, 
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
INSMK TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
AUFNR TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
KZBEW TYPE STRING,
SHKZG TYPE STRING,
ZEILE TYPE STRING,
LINE_ID TYPE STRING,
PARENT_ID TYPE STRING,
LINE_DEPTH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CIFSTKREF_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_CIFSTKREF_STR-MATNR sy-vline 
WA_CIFSTKREF_STR-WERKS sy-vline 
WA_CIFSTKREF_STR-LGORT sy-vline 
WA_CIFSTKREF_STR-CHARG sy-vline 
WA_CIFSTKREF_STR-INSMK sy-vline 
WA_CIFSTKREF_STR-LIFNR sy-vline 
WA_CIFSTKREF_STR-KUNNR sy-vline 
WA_CIFSTKREF_STR-KDAUF sy-vline 
WA_CIFSTKREF_STR-KDPOS sy-vline 
WA_CIFSTKREF_STR-KDEIN sy-vline 
WA_CIFSTKREF_STR-EBELN sy-vline 
WA_CIFSTKREF_STR-EBELP sy-vline 
WA_CIFSTKREF_STR-AUFNR sy-vline 
WA_CIFSTKREF_STR-RSNUM sy-vline 
WA_CIFSTKREF_STR-RSPOS sy-vline 
WA_CIFSTKREF_STR-MENGE sy-vline 
WA_CIFSTKREF_STR-MEINS sy-vline 
WA_CIFSTKREF_STR-KZBEW sy-vline 
WA_CIFSTKREF_STR-SHKZG sy-vline 
WA_CIFSTKREF_STR-ZEILE sy-vline 
WA_CIFSTKREF_STR-LINE_ID sy-vline 
WA_CIFSTKREF_STR-PARENT_ID sy-vline 
WA_CIFSTKREF_STR-LINE_DEPTH sy-vline      INTO ld_text SEPARATED BY SPACE.

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