ABAP Select data from SAP table WDFR_EINS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WDFR_EINS
*  INTO TABLE @DATA(IT_WDFR_EINS2).
*--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_WDFR_EINS INDEX 1 INTO DATA(WA_WDFR_EINS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WDFR_EINS>-DISART = 1.
<WDFR_EINS>-ABGART = 1.
<WDFR_EINS>-AUFAR = 1.
<WDFR_EINS>-APSTP = 1.
<WDFR_EINS>-SBELN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WDFR_EINS-ASTRA, sy-vline,
  WA_WDFR_EINS-ABELN, sy-vline,
  WA_WDFR_EINS-ABELP, sy-vline,
  WA_WDFR_EINS-LISTG, sy-vline,
  WA_WDFR_EINS-RUNDG, sy-vline,
  WA_WDFR_EINS-RESTV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WDFR_EINS 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_WDFR_EINS 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_WDFR_EINS INTO WA_WDFR_EINS.


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

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

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

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

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

*Conversion exit CUNIT, internal->external for field ABSMEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WDFR_EINS-ABSMEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WDFR_EINS-ABSMEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field AMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_WDFR_EINS-AMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WDFR_EINS-AMEINS.
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_WDFR_EINS_STR, 
DISART TYPE STRING,
ABGART TYPE STRING,
AUFAR TYPE STRING,
APSTP TYPE STRING,
SBELN TYPE STRING,
ASTRA TYPE STRING,
ABELN TYPE STRING,
ABELP TYPE STRING,
LISTG TYPE STRING,
RUNDG TYPE STRING,
RESTV TYPE STRING,
AAVIT TYPE STRING,
BERMIMA TYPE STRING,
BSTGE TYPE STRING,
BEZCH TYPE STRING,
AFDTP TYPE STRING,
AFDAT TYPE STRING,
VKDTP TYPE STRING,
VKDAT TYPE STRING,
FBDAT TYPE STRING,
FUDAT TYPE STRING,
FLDAT TYPE STRING,
FBDTP TYPE STRING,
FUDTP TYPE STRING,
FLDTP TYPE STRING,
WBTYP TYPE STRING,
AKTBE TYPE STRING,
I_BELNR TYPE STRING,
I_POSNR TYPE STRING,
LEIND TYPE STRING,
LZEIT TYPE STRING,
ALIFNR TYPE STRING,
ABSMNG TYPE STRING,
ABSMEI TYPE STRING,
AMENGE TYPE STRING,
AMEINS TYPE STRING,
IA_SAMMELBEST TYPE STRING,
UPDKZ TYPE STRING,
BESKZ TYPE STRING,
SATKZ TYPE STRING,
AKTKZ TYPE STRING,
ABNKZ TYPE STRING,
EINDT TYPE STRING,
BESAB TYPE STRING,
BESBI TYPE STRING,
AINDT TYPE STRING,
ABGAB TYPE STRING,
ABGBI TYPE STRING,
AUSAB TYPE STRING,
AUSBI TYPE STRING,
LFDAT_AB TYPE STRING,
LFDAT_BI TYPE STRING,
UHRAB TYPE STRING,
UHRBI TYPE STRING,
DTIME TYPE STRING,
DHOUR TYPE STRING,
CD TYPE STRING,
FT TYPE STRING,
PA TYPE STRING,
CD_FT TYPE STRING,
CD_PA TYPE STRING,
KABE TYPE STRING,
BEBE TYPE STRING,
BRBE TYPE STRING,
OPTI TYPE STRING,
AVAIL TYPE STRING,
ROULE TYPE STRING,
STOCK TYPE STRING,
SAMKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WDFR_EINS_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_WDFR_EINS_STR-DISART sy-vline 
WA_WDFR_EINS_STR-ABGART sy-vline 
WA_WDFR_EINS_STR-AUFAR sy-vline 
WA_WDFR_EINS_STR-APSTP sy-vline 
WA_WDFR_EINS_STR-SBELN sy-vline 
WA_WDFR_EINS_STR-ASTRA sy-vline 
WA_WDFR_EINS_STR-ABELN sy-vline 
WA_WDFR_EINS_STR-ABELP sy-vline 
WA_WDFR_EINS_STR-LISTG sy-vline 
WA_WDFR_EINS_STR-RUNDG sy-vline 
WA_WDFR_EINS_STR-RESTV sy-vline 
WA_WDFR_EINS_STR-AAVIT sy-vline 
WA_WDFR_EINS_STR-BERMIMA sy-vline 
WA_WDFR_EINS_STR-BSTGE sy-vline 
WA_WDFR_EINS_STR-BEZCH sy-vline 
WA_WDFR_EINS_STR-AFDTP sy-vline 
WA_WDFR_EINS_STR-AFDAT sy-vline 
WA_WDFR_EINS_STR-VKDTP sy-vline 
WA_WDFR_EINS_STR-VKDAT sy-vline 
WA_WDFR_EINS_STR-FBDAT sy-vline 
WA_WDFR_EINS_STR-FUDAT sy-vline 
WA_WDFR_EINS_STR-FLDAT sy-vline 
WA_WDFR_EINS_STR-FBDTP sy-vline 
WA_WDFR_EINS_STR-FUDTP sy-vline 
WA_WDFR_EINS_STR-FLDTP sy-vline 
WA_WDFR_EINS_STR-WBTYP sy-vline 
WA_WDFR_EINS_STR-AKTBE sy-vline 
WA_WDFR_EINS_STR-I_BELNR sy-vline 
WA_WDFR_EINS_STR-I_POSNR sy-vline 
WA_WDFR_EINS_STR-LEIND sy-vline 
WA_WDFR_EINS_STR-LZEIT sy-vline 
WA_WDFR_EINS_STR-ALIFNR sy-vline 
WA_WDFR_EINS_STR-ABSMNG sy-vline 
WA_WDFR_EINS_STR-ABSMEI sy-vline 
WA_WDFR_EINS_STR-AMENGE sy-vline 
WA_WDFR_EINS_STR-AMEINS sy-vline 
WA_WDFR_EINS_STR-IA_SAMMELBEST sy-vline 
WA_WDFR_EINS_STR-UPDKZ sy-vline 
WA_WDFR_EINS_STR-BESKZ sy-vline 
WA_WDFR_EINS_STR-SATKZ sy-vline 
WA_WDFR_EINS_STR-AKTKZ sy-vline 
WA_WDFR_EINS_STR-ABNKZ sy-vline 
WA_WDFR_EINS_STR-EINDT sy-vline 
WA_WDFR_EINS_STR-BESAB sy-vline 
WA_WDFR_EINS_STR-BESBI sy-vline 
WA_WDFR_EINS_STR-AINDT sy-vline 
WA_WDFR_EINS_STR-ABGAB sy-vline 
WA_WDFR_EINS_STR-ABGBI sy-vline 
WA_WDFR_EINS_STR-AUSAB sy-vline 
WA_WDFR_EINS_STR-AUSBI sy-vline 
WA_WDFR_EINS_STR-LFDAT_AB sy-vline 
WA_WDFR_EINS_STR-LFDAT_BI sy-vline 
WA_WDFR_EINS_STR-UHRAB sy-vline 
WA_WDFR_EINS_STR-UHRBI sy-vline 
WA_WDFR_EINS_STR-DTIME sy-vline 
WA_WDFR_EINS_STR-DHOUR sy-vline 
WA_WDFR_EINS_STR-CD sy-vline 
WA_WDFR_EINS_STR-FT sy-vline 
WA_WDFR_EINS_STR-PA sy-vline 
WA_WDFR_EINS_STR-CD_FT sy-vline 
WA_WDFR_EINS_STR-CD_PA sy-vline 
WA_WDFR_EINS_STR-KABE sy-vline 
WA_WDFR_EINS_STR-BEBE sy-vline 
WA_WDFR_EINS_STR-BRBE sy-vline 
WA_WDFR_EINS_STR-OPTI sy-vline 
WA_WDFR_EINS_STR-AVAIL sy-vline 
WA_WDFR_EINS_STR-ROULE sy-vline 
WA_WDFR_EINS_STR-STOCK sy-vline 
WA_WDFR_EINS_STR-SAMKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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