ABAP Select data from SAP table VFCO_KO8G_L4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VFCO_KO8G_L4 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 VFCO_KO8G_L4. 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 VFCO_KO8G_L4 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_VFCO_KO8G_L4 TYPE STANDARD TABLE OF VFCO_KO8G_L4,
      WA_VFCO_KO8G_L4 TYPE VFCO_KO8G_L4,
      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: <VFCO_KO8G_L4> TYPE VFCO_KO8G_L4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_VFCO_KO8G_L4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM VFCO_KO8G_L4
  INTO TABLE IT_VFCO_KO8G_L4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFCO_KO8G_L4
*  INTO TABLE @DATA(IT_VFCO_KO8G_L42).
*--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_VFCO_KO8G_L4 INDEX 1 INTO DATA(WA_VFCO_KO8G_L42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VFCO_KO8G_L4 ASSIGNING <VFCO_KO8G_L4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFCO_KO8G_L4>-MANDT = 1.
<VFCO_KO8G_L4>-KOKRS = 1.
<VFCO_KO8G_L4>-GSBER = 1.
<VFCO_KO8G_L4>-PRCTR = 1.
<VFCO_KO8G_L4>-BUKRS = 1.

ENDLOOP.

LOOP AT IT_VFCO_KO8G_L4 INTO WA_VFCO_KO8G_L4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFCO_KO8G_L4-WERKS, sy-vline,
  WA_VFCO_KO8G_L4-FUNC_AREA, sy-vline,
  WA_VFCO_KO8G_L4-AUFEX, sy-vline,
  WA_VFCO_KO8G_L4-AUFNR, sy-vline,
  WA_VFCO_KO8G_L4-AUART, sy-vline,
  WA_VFCO_KO8G_L4-AUTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFCO_KO8G_L4 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_VFCO_KO8G_L4 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_VFCO_KO8G_L4 INTO WA_VFCO_KO8G_L4.


*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 PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFEX
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-AUFEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-AUFEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-KDAUF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-PSPEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SCOPE, internal->external for field SCOPE
CALL FUNCTION 'CONVERSION_EXIT_SCOPE_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-SCOPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-SCOPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VFCO_KO8G_L4-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFCO_KO8G_L4-LOGSYSTEM.
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_VFCO_KO8G_L4_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
FUNC_AREA TYPE STRING,
AUFEX TYPE STRING,
AUFNR TYPE STRING,
AUART TYPE STRING,
AUTYP TYPE STRING,
ASTKZ TYPE STRING,
LOEKZ TYPE STRING,
OBJNR TYPE STRING,
AWSLS TYPE STRING,
ABGSL TYPE STRING,
KDAUF TYPE STRING,
PSPEL TYPE STRING,
CCKEY TYPE STRING,
WAERS TYPE STRING,
KVEWE TYPE STRING,
KAPPL TYPE STRING,
KALSM TYPE STRING,
ZSCHL TYPE STRING,
SCOPE TYPE STRING,
PLINT TYPE STRING,
IVPRO TYPE STRING,
RSORD TYPE STRING,
TADAT TYPE STRING,
LOGSYSTEM TYPE STRING,
KTEXT TYPE STRING,
PHAS0 TYPE STRING,
PHAS1 TYPE STRING,
PHAS2 TYPE STRING,
PHAS3 TYPE STRING,
OBTYP TYPE STRING,
STSMA TYPE STRING,
RELEVANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFCO_KO8G_L4_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_VFCO_KO8G_L4_STR-MANDT sy-vline 
WA_VFCO_KO8G_L4_STR-KOKRS sy-vline 
WA_VFCO_KO8G_L4_STR-GSBER sy-vline 
WA_VFCO_KO8G_L4_STR-PRCTR sy-vline 
WA_VFCO_KO8G_L4_STR-BUKRS sy-vline 
WA_VFCO_KO8G_L4_STR-WERKS sy-vline 
WA_VFCO_KO8G_L4_STR-FUNC_AREA sy-vline 
WA_VFCO_KO8G_L4_STR-AUFEX sy-vline 
WA_VFCO_KO8G_L4_STR-AUFNR sy-vline 
WA_VFCO_KO8G_L4_STR-AUART sy-vline 
WA_VFCO_KO8G_L4_STR-AUTYP sy-vline 
WA_VFCO_KO8G_L4_STR-ASTKZ sy-vline 
WA_VFCO_KO8G_L4_STR-LOEKZ sy-vline 
WA_VFCO_KO8G_L4_STR-OBJNR sy-vline 
WA_VFCO_KO8G_L4_STR-AWSLS sy-vline 
WA_VFCO_KO8G_L4_STR-ABGSL sy-vline 
WA_VFCO_KO8G_L4_STR-KDAUF sy-vline 
WA_VFCO_KO8G_L4_STR-PSPEL sy-vline 
WA_VFCO_KO8G_L4_STR-CCKEY sy-vline 
WA_VFCO_KO8G_L4_STR-WAERS sy-vline 
WA_VFCO_KO8G_L4_STR-KVEWE sy-vline 
WA_VFCO_KO8G_L4_STR-KAPPL sy-vline 
WA_VFCO_KO8G_L4_STR-KALSM sy-vline 
WA_VFCO_KO8G_L4_STR-ZSCHL sy-vline 
WA_VFCO_KO8G_L4_STR-SCOPE sy-vline 
WA_VFCO_KO8G_L4_STR-PLINT sy-vline 
WA_VFCO_KO8G_L4_STR-IVPRO sy-vline 
WA_VFCO_KO8G_L4_STR-RSORD sy-vline 
WA_VFCO_KO8G_L4_STR-TADAT sy-vline 
WA_VFCO_KO8G_L4_STR-LOGSYSTEM sy-vline 
WA_VFCO_KO8G_L4_STR-KTEXT sy-vline 
WA_VFCO_KO8G_L4_STR-PHAS0 sy-vline 
WA_VFCO_KO8G_L4_STR-PHAS1 sy-vline 
WA_VFCO_KO8G_L4_STR-PHAS2 sy-vline 
WA_VFCO_KO8G_L4_STR-PHAS3 sy-vline 
WA_VFCO_KO8G_L4_STR-OBTYP sy-vline 
WA_VFCO_KO8G_L4_STR-STSMA sy-vline 
WA_VFCO_KO8G_L4_STR-RELEVANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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