ABAP Select data from SAP table KCOFP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KCOFP
*  INTO TABLE @DATA(IT_KCOFP2).
*--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_KCOFP INDEX 1 INTO DATA(WA_KCOFP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KCOFP>-KOKRS = 1.
<KCOFP>-ZHLDT = 1.
<KCOFP>-WRTTP = 1.
<KCOFP>-VRGNG = 1.
<KCOFP>-OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KCOFP-WKGBTR, sy-vline,
  WA_KCOFP-KWAER, sy-vline,
  WA_KCOFP-WTGBTR, sy-vline,
  WA_KCOFP-TWAER, sy-vline,
  WA_KCOFP-WOGBTR, sy-vline,
  WA_KCOFP-OWAER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KCOFP 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_KCOFP 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_KCOFP INTO WA_KCOFP.


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

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

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

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

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KCOFP-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KCOFP-KSTAR.
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_KCOFP_STR, 
KOKRS TYPE STRING,
ZHLDT TYPE STRING,
WRTTP TYPE STRING,
VRGNG TYPE STRING,
OBJNR TYPE STRING,
WKGBTR TYPE STRING,
KWAER TYPE STRING,
WTGBTR TYPE STRING,
TWAER TYPE STRING,
WOGBTR TYPE STRING,
OWAER TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
GSBER TYPE STRING,
BUKRS TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
KSTAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KCOFP_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_KCOFP_STR-KOKRS sy-vline 
WA_KCOFP_STR-ZHLDT sy-vline 
WA_KCOFP_STR-WRTTP sy-vline 
WA_KCOFP_STR-VRGNG sy-vline 
WA_KCOFP_STR-OBJNR sy-vline 
WA_KCOFP_STR-WKGBTR sy-vline 
WA_KCOFP_STR-KWAER sy-vline 
WA_KCOFP_STR-WTGBTR sy-vline 
WA_KCOFP_STR-TWAER sy-vline 
WA_KCOFP_STR-WOGBTR sy-vline 
WA_KCOFP_STR-OWAER sy-vline 
WA_KCOFP_STR-LIFNR sy-vline 
WA_KCOFP_STR-KUNNR sy-vline 
WA_KCOFP_STR-VBELN sy-vline 
WA_KCOFP_STR-POSNR sy-vline 
WA_KCOFP_STR-GSBER sy-vline 
WA_KCOFP_STR-BUKRS sy-vline 
WA_KCOFP_STR-AUFPL sy-vline 
WA_KCOFP_STR-APLZL sy-vline 
WA_KCOFP_STR-RSNUM sy-vline 
WA_KCOFP_STR-RSPOS sy-vline 
WA_KCOFP_STR-KSTAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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