ABAP Select data from SAP table VDVDAVIS_COPY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VDVDAVIS_COPY
*  INTO TABLE @DATA(IT_VDVDAVIS_COPY2).
*--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_VDVDAVIS_COPY INDEX 1 INTO DATA(WA_VDVDAVIS_COPY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VDVDAVIS_COPY>-MANDT = 1.
<VDVDAVIS_COPY>-SOBJEKT = 1.
<VDVDAVIS_COPY>-SBEWART = 1.
<VDVDAVIS_COPY>-DFAELL = 1.
<VDVDAVIS_COPY>-BNWHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VDVDAVIS_COPY-JWVORL, sy-vline,
  WA_VDVDAVIS_COPY-XLTEXT, sy-vline,
  WA_VDVDAVIS_COPY-SVULT, sy-vline,
  WA_VDVDAVIS_COPY-SINCL, sy-vline,
  WA_VDVDAVIS_COPY-KZ, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_VDVDAVIS_COPY 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_VDVDAVIS_COPY 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_VDVDAVIS_COPY INTO WA_VDVDAVIS_COPY.


*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_VDVDAVIS_COPY_STR, 
MANDT TYPE STRING,
SOBJEKT TYPE STRING,
SBEWART TYPE STRING,
DFAELL TYPE STRING,
BNWHR TYPE STRING,
JWVORL TYPE STRING,
XLTEXT TYPE STRING,
SVULT TYPE STRING,
SINCL TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VDVDAVIS_COPY_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_VDVDAVIS_COPY_STR-MANDT sy-vline 
WA_VDVDAVIS_COPY_STR-SOBJEKT sy-vline 
WA_VDVDAVIS_COPY_STR-SBEWART sy-vline 
WA_VDVDAVIS_COPY_STR-DFAELL sy-vline 
WA_VDVDAVIS_COPY_STR-BNWHR sy-vline 
WA_VDVDAVIS_COPY_STR-JWVORL sy-vline 
WA_VDVDAVIS_COPY_STR-XLTEXT sy-vline 
WA_VDVDAVIS_COPY_STR-SVULT sy-vline 
WA_VDVDAVIS_COPY_STR-SINCL sy-vline 
WA_VDVDAVIS_COPY_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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