ABAP Select data from SAP table DFKK_TRIGGER_RCL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKK_TRIGGER_RCL
*  INTO TABLE @DATA(IT_DFKK_TRIGGER_RCL2).
*--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_DFKK_TRIGGER_RCL INDEX 1 INTO DATA(WA_DFKK_TRIGGER_RCL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKK_TRIGGER_RCL>-MANDT = 1.
<DFKK_TRIGGER_RCL>-OPBEL = 1.
<DFKK_TRIGGER_RCL>-OPUPK = 1.
<DFKK_TRIGGER_RCL>-OPUPW = 1.
<DFKK_TRIGGER_RCL>-OPUPZ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKK_TRIGGER_RCL-BUKRS, sy-vline,
  WA_DFKK_TRIGGER_RCL-RCVER, sy-vline,
  WA_DFKK_TRIGGER_RCL-GPART, sy-vline,
  WA_DFKK_TRIGGER_RCL-VKONT, sy-vline,
  WA_DFKK_TRIGGER_RCL-VTREF, sy-vline,
  WA_DFKK_TRIGGER_RCL-SUBAP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKK_TRIGGER_RCL 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_DFKK_TRIGGER_RCL 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_DFKK_TRIGGER_RCL INTO WA_DFKK_TRIGGER_RCL.


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

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

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

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKK_TRIGGER_RCL-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKK_TRIGGER_RCL-VTREF.
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_DFKK_TRIGGER_RCL_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
OPUPW TYPE STRING,
OPUPZ TYPE STRING,
BUKRS TYPE STRING,
RCVER TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
SUBAP TYPE STRING,
CLGRD TYPE STRING,
STAKZ TYPE STRING,
TRFST TYPE STRING,
UNAME TYPE STRING,
CDATE TYPE STRING,
CTIME TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKK_TRIGGER_RCL_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_DFKK_TRIGGER_RCL_STR-MANDT sy-vline 
WA_DFKK_TRIGGER_RCL_STR-OPBEL sy-vline 
WA_DFKK_TRIGGER_RCL_STR-OPUPK sy-vline 
WA_DFKK_TRIGGER_RCL_STR-OPUPW sy-vline 
WA_DFKK_TRIGGER_RCL_STR-OPUPZ sy-vline 
WA_DFKK_TRIGGER_RCL_STR-BUKRS sy-vline 
WA_DFKK_TRIGGER_RCL_STR-RCVER sy-vline 
WA_DFKK_TRIGGER_RCL_STR-GPART sy-vline 
WA_DFKK_TRIGGER_RCL_STR-VKONT sy-vline 
WA_DFKK_TRIGGER_RCL_STR-VTREF sy-vline 
WA_DFKK_TRIGGER_RCL_STR-SUBAP sy-vline 
WA_DFKK_TRIGGER_RCL_STR-CLGRD sy-vline 
WA_DFKK_TRIGGER_RCL_STR-STAKZ sy-vline 
WA_DFKK_TRIGGER_RCL_STR-TRFST sy-vline 
WA_DFKK_TRIGGER_RCL_STR-UNAME sy-vline 
WA_DFKK_TRIGGER_RCL_STR-CDATE sy-vline 
WA_DFKK_TRIGGER_RCL_STR-CTIME sy-vline 
WA_DFKK_TRIGGER_RCL_STR-LAUFD sy-vline 
WA_DFKK_TRIGGER_RCL_STR-LAUFI sy-vline      INTO ld_text SEPARATED BY SPACE.

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