ABAP Select data from SAP table FKKCOLLDISP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKCOLLDISP
*  INTO TABLE @DATA(IT_FKKCOLLDISP2).
*--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_FKKCOLLDISP INDEX 1 INTO DATA(WA_FKKCOLLDISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKCOLLDISP>-MANDT = 1.
<FKKCOLLDISP>-OPBEL = 1.
<FKKCOLLDISP>-INKPS = 1.
<FKKCOLLDISP>-INKGP = 1.
<FKKCOLLDISP>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKCOLLDISP-GPART, sy-vline,
  WA_FKKCOLLDISP-VKONT, sy-vline,
  WA_FKKCOLLDISP-AGDAT, sy-vline,
  WA_FKKCOLLDISP-AGGRD, sy-vline,
  WA_FKKCOLLDISP-WAERS, sy-vline,
  WA_FKKCOLLDISP-BETRW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKCOLLDISP 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_FKKCOLLDISP 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_FKKCOLLDISP INTO WA_FKKCOLLDISP.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field DRS_SCORE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKCOLLDISP-DRS_SCORE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKCOLLDISP-DRS_SCORE.
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_FKKCOLLDISP_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
INKPS TYPE STRING,
INKGP TYPE STRING,
BUKRS TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
AGDAT TYPE STRING,
AGGRD TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
BETRZ TYPE STRING,
NINKB TYPE STRING,
INTBT TYPE STRING,
CHARB TYPE STRING,
XBLNR TYPE STRING,
AGSTA TYPE STRING,
XSOLD TYPE STRING,
NRZAS TYPE STRING,
RUDAT TYPE STRING,
RUGRD TYPE STRING,
COLLCASE_ID TYPE STRING,
DRS_REQDATE TYPE STRING,
DRS_RSPDATE TYPE STRING,
DRS_SCORE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKCOLLDISP_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_FKKCOLLDISP_STR-MANDT sy-vline 
WA_FKKCOLLDISP_STR-OPBEL sy-vline 
WA_FKKCOLLDISP_STR-INKPS sy-vline 
WA_FKKCOLLDISP_STR-INKGP sy-vline 
WA_FKKCOLLDISP_STR-BUKRS sy-vline 
WA_FKKCOLLDISP_STR-GPART sy-vline 
WA_FKKCOLLDISP_STR-VKONT sy-vline 
WA_FKKCOLLDISP_STR-AGDAT sy-vline 
WA_FKKCOLLDISP_STR-AGGRD sy-vline 
WA_FKKCOLLDISP_STR-WAERS sy-vline 
WA_FKKCOLLDISP_STR-BETRW sy-vline 
WA_FKKCOLLDISP_STR-BETRZ sy-vline 
WA_FKKCOLLDISP_STR-NINKB sy-vline 
WA_FKKCOLLDISP_STR-INTBT sy-vline 
WA_FKKCOLLDISP_STR-CHARB sy-vline 
WA_FKKCOLLDISP_STR-XBLNR sy-vline 
WA_FKKCOLLDISP_STR-AGSTA sy-vline 
WA_FKKCOLLDISP_STR-XSOLD sy-vline 
WA_FKKCOLLDISP_STR-NRZAS sy-vline 
WA_FKKCOLLDISP_STR-RUDAT sy-vline 
WA_FKKCOLLDISP_STR-RUGRD sy-vline 
WA_FKKCOLLDISP_STR-COLLCASE_ID sy-vline 
WA_FKKCOLLDISP_STR-DRS_REQDATE sy-vline 
WA_FKKCOLLDISP_STR-DRS_RSPDATE sy-vline 
WA_FKKCOLLDISP_STR-DRS_SCORE sy-vline      INTO ld_text SEPARATED BY SPACE.

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