ABAP Select data from SAP table HRDESVGKV_OPERATION_TYPE_CHOIC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRDESVGKV_OPERATION_TYPE_CHOIC 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_OPERATION_TYPE_CHOIC. 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_OPERATION_TYPE_CHOIC 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_OPERATION_TYPE_CHOIC TYPE STANDARD TABLE OF HRDESVGKV_OPERATION_TYPE_CHOIC,
      WA_HRDESVGKV_OPERATION_TYPE_CHOIC TYPE HRDESVGKV_OPERATION_TYPE_CHOIC,
      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_OPERATION_TYPE_CHOIC> TYPE HRDESVGKV_OPERATION_TYPE_CHOIC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESVGKV_OPERATION_TYPE_CHOIC
*  INTO TABLE @DATA(IT_HRDESVGKV_OPERATION_TYPE_CHOIC2).
*--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_OPERATION_TYPE_CHOIC INDEX 1 INTO DATA(WA_HRDESVGKV_OPERATION_TYPE_CHOIC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDESVGKV_OPERATION_TYPE_CHOIC-COMPONENT_ID, sy-vline,
  WA_HRDESVGKV_OPERATION_TYPE_CHOIC-MESSAGE, sy-vline,
  WA_HRDESVGKV_OPERATION_TYPE_CHOIC-ID, sy-vline,
  WA_HRDESVGKV_OPERATION_TYPE_CHOIC-NAME, sy-vline,
  WA_HRDESVGKV_OPERATION_TYPE_CHOIC-DESCRIPTION, sy-vline,
  WA_HRDESVGKV_OPERATION_TYPE_CHOIC-EXCEPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESVGKV_OPERATION_TYPE_CHOIC 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_OPERATION_TYPE_CHOIC 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_OPERATION_TYPE_CHOIC INTO WA_HRDESVGKV_OPERATION_TYPE_CHOIC.


*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_OPERATION_TYPE_CHOIC_STR, 
SELECTION TYPE STRING,
CONTROLLER TYPE STRING,
EVENT TYPE STRING,
CONTROLLER TYPE STRING,
TIME_STAMP TYPE STRING,
COMPONENT_ID TYPE STRING,
MESSAGE TYPE STRING,
ID TYPE STRING,
NAME TYPE STRING,
DESCRIPTION TYPE STRING,
EXCEPTION TYPE STRING,
CONTROLLER TYPE STRING,
TIME_STAMP TYPE STRING,
COMPONENT_ID TYPE STRING,
CHOICE TYPE STRING,
MESSAGE TYPE STRING,
CONTROLLER TYPE STRING,
TIME_STAMP TYPE STRING,
COMPONENT_ID TYPE STRING,
TEXT TYPE STRING,
CONTROLLER TYPE STRING,
CONTENT TYPE STRING,
PARAMETER TYPE STRING,
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
CLASS TYPE STRING,
CONTENT TYPE STRING,
NAME TYPE STRING,
DESCRIPTION TYPE STRING,
USAGE TYPE STRING,
TYPE TYPE STRING,
OBJECT TYPE STRING,
CONTROLLER TYPE STRING,
BASE TYPE STRING,
CONTROLLER TYPE STRING,
CLASS TYPE STRING,
CONTENT TYPE STRING,
ID TYPE STRING,
NAME TYPE STRING,
DESCRIPTION TYPE STRING,
TYPE TYPE STRING,
USAGE TYPE STRING,
LOCATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESVGKV_OPERATION_TYPE_CHOIC_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_OPERATION_TYPE_CHOIC_STR-SELECTION sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-EVENT sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-TIME_STAMP sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-COMPONENT_ID sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-MESSAGE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-ID sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-NAME sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-DESCRIPTION sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-EXCEPTION sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-TIME_STAMP sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-COMPONENT_ID sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CHOICE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-MESSAGE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-TIME_STAMP sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-COMPONENT_ID sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-TEXT sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTENT sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-PARAMETER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-BASE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CLASS sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTENT sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-NAME sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-DESCRIPTION sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-USAGE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-TYPE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-OBJECT sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-BASE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTROLLER sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CLASS sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-CONTENT sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-ID sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-NAME sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-DESCRIPTION sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-TYPE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-USAGE sy-vline 
WA_HRDESVGKV_OPERATION_TYPE_CHOIC_STR-LOCATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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