ABAP Select data from SAP table HRVPVC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRVPVC
*  INTO TABLE @DATA(IT_HRVPVC2).
*--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_HRVPVC INDEX 1 INTO DATA(WA_HRVPVC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRVPVC>-WMOD = 1.
<HRVPVC>-LMOD = 1.
<HRVPVC>-WTYP = 1.
<HRVPVC>-LTYP = 1.
<HRVPVC>-WID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRVPVC-LID, sy-vline,
  WA_HRVPVC-WSHRT, sy-vline,
  WA_HRVPVC-LSHRT, sy-vline,
  WA_HRVPVC-WSTXT, sy-vline,
  WA_HRVPVC-LSTXT, sy-vline,
  WA_HRVPVC-WORG_TYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRVPVC 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_HRVPVC 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_HRVPVC INTO WA_HRVPVC.


*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_HRVPVC_STR, 
WMOD TYPE STRING,
LMOD TYPE STRING,
WTYP TYPE STRING,
LTYP TYPE STRING,
WID TYPE STRING,
LID TYPE STRING,
WSHRT TYPE STRING,
LSHRT TYPE STRING,
WSTXT TYPE STRING,
LSTXT TYPE STRING,
WORG_TYP TYPE STRING,
LORG_TYP TYPE STRING,
WORG_ID TYPE STRING,
LORG_ID TYPE STRING,
WORG_SHRT TYPE STRING,
LORG_SHRT TYPE STRING,
WORG_STXT TYPE STRING,
LORG_STXT TYPE STRING,
WPRIOX TYPE STRING,
LPRIOX TYPE STRING,
WMANZL TYPE STRING,
LMANZL TYPE STRING,
WBUDAT TYPE STRING,
LBUDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRVPVC_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_HRVPVC_STR-WMOD sy-vline 
WA_HRVPVC_STR-LMOD sy-vline 
WA_HRVPVC_STR-WTYP sy-vline 
WA_HRVPVC_STR-LTYP sy-vline 
WA_HRVPVC_STR-WID sy-vline 
WA_HRVPVC_STR-LID sy-vline 
WA_HRVPVC_STR-WSHRT sy-vline 
WA_HRVPVC_STR-LSHRT sy-vline 
WA_HRVPVC_STR-WSTXT sy-vline 
WA_HRVPVC_STR-LSTXT sy-vline 
WA_HRVPVC_STR-WORG_TYP sy-vline 
WA_HRVPVC_STR-LORG_TYP sy-vline 
WA_HRVPVC_STR-WORG_ID sy-vline 
WA_HRVPVC_STR-LORG_ID sy-vline 
WA_HRVPVC_STR-WORG_SHRT sy-vline 
WA_HRVPVC_STR-LORG_SHRT sy-vline 
WA_HRVPVC_STR-WORG_STXT sy-vline 
WA_HRVPVC_STR-LORG_STXT sy-vline 
WA_HRVPVC_STR-WPRIOX sy-vline 
WA_HRVPVC_STR-LPRIOX sy-vline 
WA_HRVPVC_STR-WMANZL sy-vline 
WA_HRVPVC_STR-LMANZL sy-vline 
WA_HRVPVC_STR-WBUDAT sy-vline 
WA_HRVPVC_STR-LBUDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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