ABAP Select data from SAP table DFKKCRDEL2P into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKCRDEL2P 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 DFKKCRDEL2P. 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 DFKKCRDEL2P 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_DFKKCRDEL2P TYPE STANDARD TABLE OF DFKKCRDEL2P,
      WA_DFKKCRDEL2P TYPE DFKKCRDEL2P,
      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: <DFKKCRDEL2P> TYPE DFKKCRDEL2P.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFKKCRDEL2P.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFKKCRDEL2P
  INTO TABLE IT_DFKKCRDEL2P.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKCRDEL2P
*  INTO TABLE @DATA(IT_DFKKCRDEL2P2).
*--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_DFKKCRDEL2P INDEX 1 INTO DATA(WA_DFKKCRDEL2P2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFKKCRDEL2P ASSIGNING <DFKKCRDEL2P>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKCRDEL2P>-MANDT = 1.
<DFKKCRDEL2P>-HERKF = 1.
<DFKKCRDEL2P>-ORG1T = 1.
<DFKKCRDEL2P>-ORG1R = 1.
<DFKKCRDEL2P>-HBKID = 1.

ENDLOOP.

LOOP AT IT_DFKKCRDEL2P INTO WA_DFKKCRDEL2P.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKCRDEL2P-HKTID, sy-vline,
  WA_DFKKCRDEL2P-ZTART, sy-vline,
  WA_DFKKCRDEL2P-ZTNUM, sy-vline,
  WA_DFKKCRDEL2P-LFDNR, sy-vline,
  WA_DFKKCRDEL2P-LODAT, sy-vline,
  WA_DFKKCRDEL2P-LOTIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKCRDEL2P 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_DFKKCRDEL2P 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_DFKKCRDEL2P INTO WA_DFKKCRDEL2P.


*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 ZTNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKCRDEL2P-ZTNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKCRDEL2P-ZTNUM.
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_DFKKCRDEL2P_STR, 
MANDT TYPE STRING,
HERKF TYPE STRING,
ORG1T TYPE STRING,
ORG1R TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
ZTART TYPE STRING,
ZTNUM TYPE STRING,
LFDNR TYPE STRING,
LODAT TYPE STRING,
LOTIM TYPE STRING,
LONAM TYPE STRING,
NNAME TYPE STRING,
VNAME TYPE STRING,
ANSCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKCRDEL2P_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_DFKKCRDEL2P_STR-MANDT sy-vline 
WA_DFKKCRDEL2P_STR-HERKF sy-vline 
WA_DFKKCRDEL2P_STR-ORG1T sy-vline 
WA_DFKKCRDEL2P_STR-ORG1R sy-vline 
WA_DFKKCRDEL2P_STR-HBKID sy-vline 
WA_DFKKCRDEL2P_STR-HKTID sy-vline 
WA_DFKKCRDEL2P_STR-ZTART sy-vline 
WA_DFKKCRDEL2P_STR-ZTNUM sy-vline 
WA_DFKKCRDEL2P_STR-LFDNR sy-vline 
WA_DFKKCRDEL2P_STR-LODAT sy-vline 
WA_DFKKCRDEL2P_STR-LOTIM sy-vline 
WA_DFKKCRDEL2P_STR-LONAM sy-vline 
WA_DFKKCRDEL2P_STR-NNAME sy-vline 
WA_DFKKCRDEL2P_STR-VNAME sy-vline 
WA_DFKKCRDEL2P_STR-ANSCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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