ABAP Select data from SAP table FAC_S_FINDOC_RELDOC_DISPLAY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_S_FINDOC_RELDOC_DISPLAY
*  INTO TABLE @DATA(IT_FAC_S_FINDOC_RELDOC_DISPLAY2).
*--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_FAC_S_FINDOC_RELDOC_DISPLAY INDEX 1 INTO DATA(WA_FAC_S_FINDOC_RELDOC_DISPLAY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_S_FINDOC_RELDOC_DISPLAY>-BUKRS = 1.
<FAC_S_FINDOC_RELDOC_DISPLAY>-BELNR = 1.
<FAC_S_FINDOC_RELDOC_DISPLAY>-GJAHR = 1.
<FAC_S_FINDOC_RELDOC_DISPLAY>-NUM_ORDER = 1.
<FAC_S_FINDOC_RELDOC_DISPLAY>-OBJKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_S_FINDOC_RELDOC_DISPLAY-OBJTYPE, sy-vline,
  WA_FAC_S_FINDOC_RELDOC_DISPLAY-LOGSYS, sy-vline,
  WA_FAC_S_FINDOC_RELDOC_DISPLAY-NODE_DESCR, sy-vline,
  WA_FAC_S_FINDOC_RELDOC_DISPLAY-TYPE_DESCR, sy-vline,
  WA_FAC_S_FINDOC_RELDOC_DISPLAY-BSTAT, sy-vline,
  WA_FAC_S_FINDOC_RELDOC_DISPLAY-RELDOC_BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_S_FINDOC_RELDOC_DISPLAY 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_FAC_S_FINDOC_RELDOC_DISPLAY 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_FAC_S_FINDOC_RELDOC_DISPLAY INTO WA_FAC_S_FINDOC_RELDOC_DISPLAY.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field RELDOC_AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_FINDOC_RELDOC_DISPLAY-RELDOC_AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_FINDOC_RELDOC_DISPLAY-RELDOC_AWREF.
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_FAC_S_FINDOC_RELDOC_DISPLAY_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
NUM_ORDER TYPE STRING,
OBJKEY TYPE STRING,
OBJTYPE TYPE STRING,
LOGSYS TYPE STRING,
NODE_DESCR TYPE STRING,
TYPE_DESCR TYPE STRING,
BSTAT TYPE STRING,
RELDOC_BUKRS TYPE STRING,
RELDOC_BELNR TYPE STRING,
RELDOC_GJAHR TYPE STRING,
RELDOC_BLART TYPE STRING,
RELDOC_BLART_TXT TYPE STRING,
RELDOC_AWTYP TYPE STRING,
RELDOC_AWTYP_TXT TYPE STRING,
RELDOC_MBLNR TYPE STRING,
RELDOC_MJAHR TYPE STRING,
RELDOC_RE_BELNR TYPE STRING,
RELDOC_EBELN TYPE STRING,
RELDOC_RJET_ID TYPE STRING,
RELDOC_KOKRS TYPE STRING,
RELDOC_CO_BELNR TYPE STRING,
RELDOC_AUFNR TYPE STRING,
RELDOC_VBELN_VA TYPE STRING,
RELDOC_AWORG TYPE STRING,
RELDOC_AWREF TYPE STRING,
RELDOC_UUID TYPE STRING,
RELDOC_CODE TYPE STRING,
RELDOC_NMBR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_S_FINDOC_RELDOC_DISPLAY_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_FAC_S_FINDOC_RELDOC_DISPLAY_STR-BUKRS sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-BELNR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-GJAHR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-NUM_ORDER sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-OBJKEY sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-OBJTYPE sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-LOGSYS sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-NODE_DESCR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-TYPE_DESCR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-BSTAT sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_BUKRS sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_BELNR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_GJAHR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_BLART sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_BLART_TXT sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_AWTYP sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_AWTYP_TXT sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_MBLNR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_MJAHR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_RE_BELNR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_EBELN sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_RJET_ID sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_KOKRS sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_CO_BELNR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_AUFNR sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_VBELN_VA sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_AWORG sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_AWREF sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_UUID sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_CODE sy-vline 
WA_FAC_S_FINDOC_RELDOC_DISPLAY_STR-RELDOC_NMBR sy-vline      INTO ld_text SEPARATED BY SPACE.

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