ABAP Select data from SAP table FAC_S_BELEGKOPF 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_BELEGKOPF 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_BELEGKOPF. 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_BELEGKOPF 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_BELEGKOPF TYPE STANDARD TABLE OF FAC_S_BELEGKOPF,
      WA_FAC_S_BELEGKOPF TYPE FAC_S_BELEGKOPF,
      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_BELEGKOPF> TYPE FAC_S_BELEGKOPF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAC_S_BELEGKOPF
*  INTO TABLE @DATA(IT_FAC_S_BELEGKOPF2).
*--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_BELEGKOPF INDEX 1 INTO DATA(WA_FAC_S_BELEGKOPF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAC_S_BELEGKOPF>-BVORG = 1.
<FAC_S_BELEGKOPF>-BUKRS = 1.
<FAC_S_BELEGKOPF>-GJAHR = 1.
<FAC_S_BELEGKOPF>-BELNR = 1.
<FAC_S_BELEGKOPF>-BLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAC_S_BELEGKOPF-BLDAT, sy-vline,
  WA_FAC_S_BELEGKOPF-BUDAT, sy-vline,
  WA_FAC_S_BELEGKOPF-CPUDT, sy-vline,
  WA_FAC_S_BELEGKOPF-CPUTM, sy-vline,
  WA_FAC_S_BELEGKOPF-TCODE, sy-vline,
  WA_FAC_S_BELEGKOPF-XBLNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAC_S_BELEGKOPF 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_BELEGKOPF 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_BELEGKOPF INTO WA_FAC_S_BELEGKOPF.


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

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

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_BELEGKOPF-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_BELEGKOPF-KURSF.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field DBBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAC_S_BELEGKOPF-DBBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAC_S_BELEGKOPF-DBBLG.
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_BELEGKOPF_STR, 
BVORG TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BELNR TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
TCODE TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
WWERT TYPE STRING,
AWSYS TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
BSTAT TYPE STRING,
DBBLG TYPE STRING,
DBBDT TYPE STRING,
DBTAG TYPE STRING,
DBMON TYPE STRING,
USNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAC_S_BELEGKOPF_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_BELEGKOPF_STR-BVORG sy-vline 
WA_FAC_S_BELEGKOPF_STR-BUKRS sy-vline 
WA_FAC_S_BELEGKOPF_STR-GJAHR sy-vline 
WA_FAC_S_BELEGKOPF_STR-BELNR sy-vline 
WA_FAC_S_BELEGKOPF_STR-BLART sy-vline 
WA_FAC_S_BELEGKOPF_STR-BLDAT sy-vline 
WA_FAC_S_BELEGKOPF_STR-BUDAT sy-vline 
WA_FAC_S_BELEGKOPF_STR-CPUDT sy-vline 
WA_FAC_S_BELEGKOPF_STR-CPUTM sy-vline 
WA_FAC_S_BELEGKOPF_STR-TCODE sy-vline 
WA_FAC_S_BELEGKOPF_STR-XBLNR sy-vline 
WA_FAC_S_BELEGKOPF_STR-BKTXT sy-vline 
WA_FAC_S_BELEGKOPF_STR-WAERS sy-vline 
WA_FAC_S_BELEGKOPF_STR-KURSF sy-vline 
WA_FAC_S_BELEGKOPF_STR-WWERT sy-vline 
WA_FAC_S_BELEGKOPF_STR-AWSYS sy-vline 
WA_FAC_S_BELEGKOPF_STR-AWTYP sy-vline 
WA_FAC_S_BELEGKOPF_STR-AWKEY sy-vline 
WA_FAC_S_BELEGKOPF_STR-BSTAT sy-vline 
WA_FAC_S_BELEGKOPF_STR-DBBLG sy-vline 
WA_FAC_S_BELEGKOPF_STR-DBBDT sy-vline 
WA_FAC_S_BELEGKOPF_STR-DBTAG sy-vline 
WA_FAC_S_BELEGKOPF_STR-DBMON sy-vline 
WA_FAC_S_BELEGKOPF_STR-USNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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