ABAP Select data from SAP table DFK006BX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFK006BX 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 DFK006BX. 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 DFK006BX 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_DFK006BX TYPE STANDARD TABLE OF DFK006BX,
      WA_DFK006BX TYPE DFK006BX,
      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: <DFK006BX> TYPE DFK006BX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFK006BX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFK006BX
  INTO TABLE IT_DFK006BX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFK006BX
*  INTO TABLE @DATA(IT_DFK006BX2).
*--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_DFK006BX INDEX 1 INTO DATA(WA_DFK006BX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFK006BX ASSIGNING <DFK006BX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFK006BX>-MANDT = 1.
<DFK006BX>-BANKZ = 1.
<DFK006BX>-TEXT = 1.
<DFK006BX>-POSNR = 1.
<DFK006BX>-SELCC = 1.

ENDLOOP.

LOOP AT IT_DFK006BX INTO WA_DFK006BX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFK006BX-APPLK, sy-vline,
  WA_DFK006BX-SELT1, sy-vline,
  WA_DFK006BX-SELW1, sy-vline,
  WA_DFK006BX-SELT2, sy-vline,
  WA_DFK006BX-SELW2, sy-vline,
  WA_DFK006BX-SELT3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFK006BX 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_DFK006BX 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_DFK006BX INTO WA_DFK006BX.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DFK006BX_STR, 
MANDT TYPE STRING,
BANKZ TYPE STRING,
TEXT TYPE STRING,
POSNR TYPE STRING,
SELCC TYPE STRING,
APPLK TYPE STRING,
SELT1 TYPE STRING,
SELW1 TYPE STRING,
SELT2 TYPE STRING,
SELW2 TYPE STRING,
SELT3 TYPE STRING,
SELW3 TYPE STRING,
SUBAP TYPE STRING,
TBETR TYPE STRING,
BETRZ TYPE STRING,
WAERS TYPE STRING,
UNAME TYPE STRING,
DATUM TYPE STRING,
KEYZ1 TYPE STRING,
POSZA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFK006BX_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_DFK006BX_STR-MANDT sy-vline 
WA_DFK006BX_STR-BANKZ sy-vline 
WA_DFK006BX_STR-TEXT sy-vline 
WA_DFK006BX_STR-POSNR sy-vline 
WA_DFK006BX_STR-SELCC sy-vline 
WA_DFK006BX_STR-APPLK sy-vline 
WA_DFK006BX_STR-SELT1 sy-vline 
WA_DFK006BX_STR-SELW1 sy-vline 
WA_DFK006BX_STR-SELT2 sy-vline 
WA_DFK006BX_STR-SELW2 sy-vline 
WA_DFK006BX_STR-SELT3 sy-vline 
WA_DFK006BX_STR-SELW3 sy-vline 
WA_DFK006BX_STR-SUBAP sy-vline 
WA_DFK006BX_STR-TBETR sy-vline 
WA_DFK006BX_STR-BETRZ sy-vline 
WA_DFK006BX_STR-WAERS sy-vline 
WA_DFK006BX_STR-UNAME sy-vline 
WA_DFK006BX_STR-DATUM sy-vline 
WA_DFK006BX_STR-KEYZ1 sy-vline 
WA_DFK006BX_STR-POSZA sy-vline      INTO ld_text SEPARATED BY SPACE.

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