ABAP Select data from SAP table DFKKREP07_T into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKREP07_T 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 DFKKREP07_T. 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 DFKKREP07_T 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_DFKKREP07_T TYPE STANDARD TABLE OF DFKKREP07_T,
      WA_DFKKREP07_T TYPE DFKKREP07_T,
      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: <DFKKREP07_T> TYPE DFKKREP07_T.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFKKREP07_T.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFKKREP07_T
  INTO TABLE IT_DFKKREP07_T.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKREP07_T
*  INTO TABLE @DATA(IT_DFKKREP07_T2).
*--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_DFKKREP07_T INDEX 1 INTO DATA(WA_DFKKREP07_T2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFKKREP07_T ASSIGNING <DFKKREP07_T>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKREP07_T>-MANDT = 1.
<DFKKREP07_T>-OPBEL = 1.
<DFKKREP07_T>-OPUPK = 1.
<DFKKREP07_T>-GPART = 1.
<DFKKREP07_T>-VINFO = 1.

ENDLOOP.

LOOP AT IT_DFKKREP07_T INTO WA_DFKKREP07_T.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKREP07_T-TZAHL, sy-vline,
  WA_DFKKREP07_T-SBASH, sy-vline,
  WA_DFKKREP07_T-SBASW, sy-vline,
  WA_DFKKREP07_T-SBETH, sy-vline,
  WA_DFKKREP07_T-SBETW, sy-vline,
  WA_DFKKREP07_T-HWAER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKREP07_T 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_DFKKREP07_T 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_DFKKREP07_T INTO WA_DFKKREP07_T.


*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_DFKKREP07_T-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKREP07_T-OPBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKREP07_T-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKREP07_T-GPART.
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_DFKKREP07_T_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
GPART TYPE STRING,
VINFO TYPE STRING,
TZAHL TYPE STRING,
SBASH TYPE STRING,
SBASW TYPE STRING,
SBETH TYPE STRING,
SBETW TYPE STRING,
HWAER TYPE STRING,
TWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKREP07_T_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_DFKKREP07_T_STR-MANDT sy-vline 
WA_DFKKREP07_T_STR-OPBEL sy-vline 
WA_DFKKREP07_T_STR-OPUPK sy-vline 
WA_DFKKREP07_T_STR-GPART sy-vline 
WA_DFKKREP07_T_STR-VINFO sy-vline 
WA_DFKKREP07_T_STR-TZAHL sy-vline 
WA_DFKKREP07_T_STR-SBASH sy-vline 
WA_DFKKREP07_T_STR-SBASW sy-vline 
WA_DFKKREP07_T_STR-SBETH sy-vline 
WA_DFKKREP07_T_STR-SBETW sy-vline 
WA_DFKKREP07_T_STR-HWAER sy-vline 
WA_DFKKREP07_T_STR-TWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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