ABAP Select data from SAP table HRPDV_S_DESCRIPTION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRPDV_S_DESCRIPTION
*  INTO TABLE @DATA(IT_HRPDV_S_DESCRIPTION2).
*--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_HRPDV_S_DESCRIPTION INDEX 1 INTO DATA(WA_HRPDV_S_DESCRIPTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRPDV_S_DESCRIPTION>-CHANGE_STATE_ID = 1.
<HRPDV_S_DESCRIPTION>-MANDT = 1.
<HRPDV_S_DESCRIPTION>-PLVAR = 1.
<HRPDV_S_DESCRIPTION>-OTYPE = 1.
<HRPDV_S_DESCRIPTION>-OBJID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRPDV_S_DESCRIPTION-INFTY, sy-vline,
  WA_HRPDV_S_DESCRIPTION-SUBTY, sy-vline,
  WA_HRPDV_S_DESCRIPTION-ISTAT, sy-vline,
  WA_HRPDV_S_DESCRIPTION-PRIOX, sy-vline,
  WA_HRPDV_S_DESCRIPTION-BEGDA, sy-vline,
  WA_HRPDV_S_DESCRIPTION-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRPDV_S_DESCRIPTION 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_HRPDV_S_DESCRIPTION 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_HRPDV_S_DESCRIPTION INTO WA_HRPDV_S_DESCRIPTION.


*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.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_HRPDV_S_DESCRIPTION-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRPDV_S_DESCRIPTION-LANGU.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_HRPDV_S_DESCRIPTION_STR, 
CHANGE_STATE_ID TYPE STRING,
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
LANGU TYPE STRING,
FILLER TYPE STRING,
SEQNR TYPE STRING,
VALIDITY_PERIOD TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
GDATE TYPE STRING,
PERCK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRPDV_S_DESCRIPTION_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_HRPDV_S_DESCRIPTION_STR-CHANGE_STATE_ID sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-MANDT sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-PLVAR sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-OTYPE sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-OBJID sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-INFTY sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-SUBTY sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-ISTAT sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-PRIOX sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-BEGDA sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-ENDDA sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-LANGU sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-FILLER sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-SEQNR sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-VALIDITY_PERIOD sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-START_DATE sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-END_DATE sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-SHORT sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-STEXT sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-GDATE sy-vline 
WA_HRPDV_S_DESCRIPTION_STR-PERCK sy-vline      INTO ld_text SEPARATED BY SPACE.

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