ABAP Select data from SAP table VFKK_DOCFLOW_XDOC_NUM_SHORT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VFKK_DOCFLOW_XDOC_NUM_SHORT
*  INTO TABLE @DATA(IT_VFKK_DOCFLOW_XDOC_NUM_SHORT2).
*--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_VFKK_DOCFLOW_XDOC_NUM_SHORT INDEX 1 INTO DATA(WA_VFKK_DOCFLOW_XDOC_NUM_SHORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VFKK_DOCFLOW_XDOC_NUM_SHORT>-VBELN = 1.
<VFKK_DOCFLOW_XDOC_NUM_SHORT>-LOGSYS = 1.
<VFKK_DOCFLOW_XDOC_NUM_SHORT>-NOT_FOUND = 1.
<VFKK_DOCFLOW_XDOC_NUM_SHORT>-CPUDT = 1.
<VFKK_DOCFLOW_XDOC_NUM_SHORT>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-AWTYP, sy-vline,
  WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-DOCNR, sy-vline,
  WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-STATUS, sy-vline,
  WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-DISPLAY, sy-vline,
  WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-OTEXT, sy-vline,
  WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-RLDNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VFKK_DOCFLOW_XDOC_NUM_SHORT 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_VFKK_DOCFLOW_XDOC_NUM_SHORT 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_VFKK_DOCFLOW_XDOC_NUM_SHORT INTO WA_VFKK_DOCFLOW_XDOC_NUM_SHORT.


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

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

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

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

*Conversion exit GJAHR, internal->external for field AC_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-AC_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VFKK_DOCFLOW_XDOC_NUM_SHORT-AC_GJAHR.
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_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR, 
VBELN TYPE STRING,
LOGSYS TYPE STRING,
NOT_FOUND TYPE STRING,
CPUDT TYPE STRING,
GJAHR TYPE STRING,
AWTYP TYPE STRING,
DOCNR TYPE STRING,
STATUS TYPE STRING,
DISPLAY TYPE STRING,
OTEXT TYPE STRING,
RLDNR TYPE STRING,
KOKRS TYPE STRING,
BUKRS TYPE STRING,
AC_GJAHR TYPE STRING,
ICON_ARCH TYPE STRING,
XARCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_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_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-VBELN sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-LOGSYS sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-NOT_FOUND sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-CPUDT sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-GJAHR sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-AWTYP sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-DOCNR sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-STATUS sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-DISPLAY sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-OTEXT sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-RLDNR sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-KOKRS sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-BUKRS sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-AC_GJAHR sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-ICON_ARCH sy-vline 
WA_VFKK_DOCFLOW_XDOC_NUM_SHORT_STR-XARCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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