ABAP Select data from SAP table HRDESVGKV_STATE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESVGKV_STATE
*  INTO TABLE @DATA(IT_HRDESVGKV_STATE2).
*--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_HRDESVGKV_STATE INDEX 1 INTO DATA(WA_HRDESVGKV_STATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDESVGKV_STATE>-CONTROLLER = 1.
<HRDESVGKV_STATE>-TIME_STAMP = 1.
<HRDESVGKV_STATE>-CHOICE = 1.
<HRDESVGKV_STATE>-SELECTION = 1.
<HRDESVGKV_STATE>-CONTROLLER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDESVGKV_STATE-PROPERTY, sy-vline,
  WA_HRDESVGKV_STATE-CONTROLLER, sy-vline,
  WA_HRDESVGKV_STATE-TYPE, sy-vline,
  WA_HRDESVGKV_STATE-NAME, sy-vline,
  WA_HRDESVGKV_STATE-CONTENT, sy-vline,
  WA_HRDESVGKV_STATE-XMLFRAGMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESVGKV_STATE 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_HRDESVGKV_STATE 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_HRDESVGKV_STATE INTO WA_HRDESVGKV_STATE.


*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_HRDESVGKV_STATE_STR, 
CONTROLLER TYPE STRING,
TIME_STAMP TYPE STRING,
CHOICE TYPE STRING,
SELECTION TYPE STRING,
CONTROLLER TYPE STRING,
PROPERTY TYPE STRING,
CONTROLLER TYPE STRING,
TYPE TYPE STRING,
NAME TYPE STRING,
CONTENT TYPE STRING,
XMLFRAGMENT TYPE STRING,
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
CONTENT TYPE STRING,
ID TYPE STRING,
XPATH TYPE STRING,
DOCUMENT_REFERENCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESVGKV_STATE_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_HRDESVGKV_STATE_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_STATE_STR-TIME_STAMP sy-vline 
WA_HRDESVGKV_STATE_STR-CHOICE sy-vline 
WA_HRDESVGKV_STATE_STR-SELECTION sy-vline 
WA_HRDESVGKV_STATE_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_STATE_STR-PROPERTY sy-vline 
WA_HRDESVGKV_STATE_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_STATE_STR-TYPE sy-vline 
WA_HRDESVGKV_STATE_STR-NAME sy-vline 
WA_HRDESVGKV_STATE_STR-CONTENT sy-vline 
WA_HRDESVGKV_STATE_STR-XMLFRAGMENT sy-vline 
WA_HRDESVGKV_STATE_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_STATE_STR-BASE sy-vline 
WA_HRDESVGKV_STATE_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_STATE_STR-CONTENT sy-vline 
WA_HRDESVGKV_STATE_STR-ID sy-vline 
WA_HRDESVGKV_STATE_STR-XPATH sy-vline 
WA_HRDESVGKV_STATE_STR-DOCUMENT_REFERENCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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