ABAP Select data from SAP table VCLUS_EEDMREPLACE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VCLUS_EEDMREPLACE
*  INTO TABLE @DATA(IT_VCLUS_EEDMREPLACE2).
*--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_VCLUS_EEDMREPLACE INDEX 1 INTO DATA(WA_VCLUS_EEDMREPLACE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VCLUS_EEDMREPLACE>-MANDT = 1.
<VCLUS_EEDMREPLACE>-REPLACEMETHOD = 1.
<VCLUS_EEDMREPLACE>-REPLACEFUNC = 1.
<VCLUS_EEDMREPLACE>-REFZEITFUNC = 1.
<VCLUS_EEDMREPLACE>-PROFILE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VCLUS_EEDMREPLACE-PROFROLE, sy-vline,
  WA_VCLUS_EEDMREPLACE-HISTORY, sy-vline,
  WA_VCLUS_EEDMREPLACE-HISTORYPERIOD, sy-vline,
  WA_VCLUS_EEDMREPLACE-HISTORYREPLACE, sy-vline,
  WA_VCLUS_EEDMREPLACE-CONSUMPTION, sy-vline,
  WA_VCLUS_EEDMREPLACE-DEMAND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VCLUS_EEDMREPLACE 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_VCLUS_EEDMREPLACE 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_VCLUS_EEDMREPLACE INTO WA_VCLUS_EEDMREPLACE.


*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_VCLUS_EEDMREPLACE_STR, 
MANDT TYPE STRING,
REPLACEMETHOD TYPE STRING,
REPLACEFUNC TYPE STRING,
REFZEITFUNC TYPE STRING,
PROFILE TYPE STRING,
PROFROLE TYPE STRING,
HISTORY TYPE STRING,
HISTORYPERIOD TYPE STRING,
HISTORYREPLACE TYPE STRING,
CONSUMPTION TYPE STRING,
DEMAND TYPE STRING,
PRICE TYPE STRING,
FACTOR TYPE STRING,
ESTIMATE TYPE STRING,
FORECAST TYPE STRING,
MANUAL TYPE STRING,
REPLACEMETHODTXT TYPE STRING,
REPLACECUSTSTAT TYPE STRING,
LINE_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VCLUS_EEDMREPLACE_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_VCLUS_EEDMREPLACE_STR-MANDT sy-vline 
WA_VCLUS_EEDMREPLACE_STR-REPLACEMETHOD sy-vline 
WA_VCLUS_EEDMREPLACE_STR-REPLACEFUNC sy-vline 
WA_VCLUS_EEDMREPLACE_STR-REFZEITFUNC sy-vline 
WA_VCLUS_EEDMREPLACE_STR-PROFILE sy-vline 
WA_VCLUS_EEDMREPLACE_STR-PROFROLE sy-vline 
WA_VCLUS_EEDMREPLACE_STR-HISTORY sy-vline 
WA_VCLUS_EEDMREPLACE_STR-HISTORYPERIOD sy-vline 
WA_VCLUS_EEDMREPLACE_STR-HISTORYREPLACE sy-vline 
WA_VCLUS_EEDMREPLACE_STR-CONSUMPTION sy-vline 
WA_VCLUS_EEDMREPLACE_STR-DEMAND sy-vline 
WA_VCLUS_EEDMREPLACE_STR-PRICE sy-vline 
WA_VCLUS_EEDMREPLACE_STR-FACTOR sy-vline 
WA_VCLUS_EEDMREPLACE_STR-ESTIMATE sy-vline 
WA_VCLUS_EEDMREPLACE_STR-FORECAST sy-vline 
WA_VCLUS_EEDMREPLACE_STR-MANUAL sy-vline 
WA_VCLUS_EEDMREPLACE_STR-REPLACEMETHODTXT sy-vline 
WA_VCLUS_EEDMREPLACE_STR-REPLACECUSTSTAT sy-vline 
WA_VCLUS_EEDMREPLACE_STR-LINE_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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