ABAP Select data from SAP table SDPROTO_VAKEY into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SDPROTO_VAKEY
*  INTO TABLE @DATA(IT_SDPROTO_VAKEY2).
*--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_SDPROTO_VAKEY INDEX 1 INTO DATA(WA_SDPROTO_VAKEY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SDPROTO_VAKEY>-FIELD01 = 1.
<SDPROTO_VAKEY>-FIELD02 = 1.
<SDPROTO_VAKEY>-FIELD03 = 1.
<SDPROTO_VAKEY>-FIELD04 = 1.
<SDPROTO_VAKEY>-FIELD05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SDPROTO_VAKEY-FIELD06, sy-vline,
  WA_SDPROTO_VAKEY-FIELD07, sy-vline,
  WA_SDPROTO_VAKEY-FIELD08, sy-vline,
  WA_SDPROTO_VAKEY-FIELD09, sy-vline,
  WA_SDPROTO_VAKEY-FIELD10, sy-vline,
  WA_SDPROTO_VAKEY-FIELD11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SDPROTO_VAKEY 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_SDPROTO_VAKEY 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_SDPROTO_VAKEY INTO WA_SDPROTO_VAKEY.


*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_SDPROTO_VAKEY_STR, 
FIELD01 TYPE STRING,
FIELD02 TYPE STRING,
FIELD03 TYPE STRING,
FIELD04 TYPE STRING,
FIELD05 TYPE STRING,
FIELD06 TYPE STRING,
FIELD07 TYPE STRING,
FIELD08 TYPE STRING,
FIELD09 TYPE STRING,
FIELD10 TYPE STRING,
FIELD11 TYPE STRING,
FIELD12 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SDPROTO_VAKEY_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_SDPROTO_VAKEY_STR-FIELD01 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD02 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD03 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD04 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD05 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD06 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD07 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD08 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD09 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD10 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD11 sy-vline 
WA_SDPROTO_VAKEY_STR-FIELD12 sy-vline      INTO ld_text SEPARATED BY SPACE.

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