ABAP Select data from SAP table HRDEST_XRT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDEST_XRT
*  INTO TABLE @DATA(IT_HRDEST_XRT2).
*--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_HRDEST_XRT INDEX 1 INTO DATA(WA_HRDEST_XRT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDEST_XRT>-ABKRS = 1.
<HRDEST_XRT>-PERNR = 1.
<HRDEST_XRT>-FRPER = 1.
<HRDEST_XRT>-INPER = 1.
<HRDEST_XRT>-SEQNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDEST_XRT-PLMIN, sy-vline,
  WA_HRDEST_XRT-WERKS, sy-vline,
  WA_HRDEST_XRT-BTRTL, sy-vline,
  WA_HRDEST_XRT-PERSG, sy-vline,
  WA_HRDEST_XRT-PERSK, sy-vline,
  WA_HRDEST_XRT-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDEST_XRT 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_HRDEST_XRT 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_HRDEST_XRT INTO WA_HRDEST_XRT.


*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_HRDEST_XRT_STR, 
ABKRS TYPE STRING,
PERNR TYPE STRING,
FRPER TYPE STRING,
INPER TYPE STRING,
SEQNR TYPE STRING,
PLMIN TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
BUKRS TYPE STRING,
LGART TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
BTGVJ TYPE STRING,
BTGLJ TYPE STRING,
BTGFJ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDEST_XRT_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_HRDEST_XRT_STR-ABKRS sy-vline 
WA_HRDEST_XRT_STR-PERNR sy-vline 
WA_HRDEST_XRT_STR-FRPER sy-vline 
WA_HRDEST_XRT_STR-INPER sy-vline 
WA_HRDEST_XRT_STR-SEQNR sy-vline 
WA_HRDEST_XRT_STR-PLMIN sy-vline 
WA_HRDEST_XRT_STR-WERKS sy-vline 
WA_HRDEST_XRT_STR-BTRTL sy-vline 
WA_HRDEST_XRT_STR-PERSG sy-vline 
WA_HRDEST_XRT_STR-PERSK sy-vline 
WA_HRDEST_XRT_STR-BUKRS sy-vline 
WA_HRDEST_XRT_STR-LGART sy-vline 
WA_HRDEST_XRT_STR-BETRG sy-vline 
WA_HRDEST_XRT_STR-WAERS sy-vline 
WA_HRDEST_XRT_STR-BTGVJ sy-vline 
WA_HRDEST_XRT_STR-BTGLJ sy-vline 
WA_HRDEST_XRT_STR-BTGFJ sy-vline      INTO ld_text SEPARATED BY SPACE.

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