ABAP Select data from SAP table PROPERTY_DEFINITION_CLASS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PROPERTY_DEFINITION_CLASS
*  INTO TABLE @DATA(IT_PROPERTY_DEFINITION_CLASS2).
*--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_PROPERTY_DEFINITION_CLASS INDEX 1 INTO DATA(WA_PROPERTY_DEFINITION_CLASS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PROPERTY_DEFINITION_CLASS>-CONTROLLER = 1.
<PROPERTY_DEFINITION_CLASS>-ACTION_CODE = 1.
<PROPERTY_DEFINITION_CLASS>-ID = 1.
<PROPERTY_DEFINITION_CLASS>-CONTROLLER = 1.
<PROPERTY_DEFINITION_CLASS>-SCHEME_AGENCY_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PROPERTY_DEFINITION_CLASS-SCHEME_AGENCY_SCHEME_ID, sy-vline,
  WA_PROPERTY_DEFINITION_CLASS-SCHEME_AGENCY_SCHEME_AGENCY_ID, sy-vline,
  WA_PROPERTY_DEFINITION_CLASS-VALUE, sy-vline,
  WA_PROPERTY_DEFINITION_CLASS-VERSION_ID, sy-vline,
  WA_PROPERTY_DEFINITION_CLASS-REVISION_ID, sy-vline,
  WA_PROPERTY_DEFINITION_CLASS-CREATION_DATE_TIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PROPERTY_DEFINITION_CLASS 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_PROPERTY_DEFINITION_CLASS 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_PROPERTY_DEFINITION_CLASS INTO WA_PROPERTY_DEFINITION_CLASS.


*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_PROPERTY_DEFINITION_CLASS_STR, 
CONTROLLER TYPE STRING,
ACTION_CODE TYPE STRING,
ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
VALUE TYPE STRING,
VERSION_ID TYPE STRING,
REVISION_ID TYPE STRING,
CREATION_DATE_TIME TYPE STRING,
VERSION_DATE_TIME TYPE STRING,
REVISION_DATE_TIME TYPE STRING,
PREFERRED_NAME TYPE STRING,
SYNONYMOUS_NAME TYPE STRING,
SHORT_NAME TYPE STRING,
ICON_ATTACHMENT TYPE STRING,
CONTROLLER TYPE STRING,
ID TYPE STRING,
FILENAME TYPE STRING,
VALUE TYPE STRING,
DEFINING_DESCRIPTION TYPE STRING,
ADDITIONAL_DESCRIPTION TYPE STRING,
USAGE_DESCRIPTION TYPE STRING,
SOURCE_DOCUMENT_WEB_ADDRESS TYPE STRING,
TYPE_CODE TYPE STRING,
SIMPLIFIED_GRAPHIC_ATTACHMENT TYPE STRING,
CONTROLLER TYPE STRING,
ID TYPE STRING,
FILENAME TYPE STRING,
VALUE TYPE STRING,
SUBJECT_AREA_CODE TYPE STRING,
PARENT_PROPERTY_DEFINITION_CL TYPE STRING,
CONTROLLER TYPE STRING,
ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
VALUE TYPE STRING,
VERSION_ID TYPE STRING,
DEFINED_PROPERTY TYPE STRING,
HIERARCHY_PROPERTY_VALUATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PROPERTY_DEFINITION_CLASS_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_PROPERTY_DEFINITION_CLASS_STR-CONTROLLER sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ACTION_CODE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-CONTROLLER sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SCHEME_AGENCY_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SCHEME_AGENCY_SCHEME_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VALUE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VERSION_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-REVISION_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-CREATION_DATE_TIME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VERSION_DATE_TIME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-REVISION_DATE_TIME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-PREFERRED_NAME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SYNONYMOUS_NAME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SHORT_NAME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ICON_ATTACHMENT sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-CONTROLLER sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-FILENAME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VALUE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-DEFINING_DESCRIPTION sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ADDITIONAL_DESCRIPTION sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-USAGE_DESCRIPTION sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SOURCE_DOCUMENT_WEB_ADDRESS sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-TYPE_CODE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SIMPLIFIED_GRAPHIC_ATTACHMENT sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-CONTROLLER sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-FILENAME sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VALUE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SUBJECT_AREA_CODE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-PARENT_PROPERTY_DEFINITION_CL sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-CONTROLLER sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-CONTROLLER sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SCHEME_AGENCY_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SCHEME_AGENCY_SCHEME_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VALUE sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-VERSION_ID sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-DEFINED_PROPERTY sy-vline 
WA_PROPERTY_DEFINITION_CLASS_STR-HIERARCHY_PROPERTY_VALUATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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