ABAP Select data from SAP table /ISDFPS/ST_DVS_HROBJ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/ST_DVS_HROBJ 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 /ISDFPS/ST_DVS_HROBJ. 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 /ISDFPS/ST_DVS_HROBJ 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_/ISDFPS/ST_DVS_HROBJ TYPE STANDARD TABLE OF /ISDFPS/ST_DVS_HROBJ,
      WA_/ISDFPS/ST_DVS_HROBJ TYPE /ISDFPS/ST_DVS_HROBJ,
      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: </ISDFPS/ST_DVS_HROBJ> TYPE /ISDFPS/ST_DVS_HROBJ.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/ST_DVS_HROBJ
  INTO TABLE IT_/ISDFPS/ST_DVS_HROBJ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/ST_DVS_HROBJ
*  INTO TABLE @DATA(IT_/ISDFPS/ST_DVS_HROBJ2).
*--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_/ISDFPS/ST_DVS_HROBJ INDEX 1 INTO DATA(WA_/ISDFPS/ST_DVS_HROBJ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/ST_DVS_HROBJ ASSIGNING </ISDFPS/ST_DVS_HROBJ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/ST_DVS_HROBJ>-PLVAR = 1.
</ISDFPS/ST_DVS_HROBJ>-OTYPE = 1.
</ISDFPS/ST_DVS_HROBJ>-OBJID = 1.
</ISDFPS/ST_DVS_HROBJ>-STEXT = 1.
</ISDFPS/ST_DVS_HROBJ>-MANDT = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/ST_DVS_HROBJ INTO WA_/ISDFPS/ST_DVS_HROBJ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/ST_DVS_HROBJ-DOKAR, sy-vline,
  WA_/ISDFPS/ST_DVS_HROBJ-DOKNR, sy-vline,
  WA_/ISDFPS/ST_DVS_HROBJ-DOKVR, sy-vline,
  WA_/ISDFPS/ST_DVS_HROBJ-DOKTL, sy-vline,
  WA_/ISDFPS/ST_DVS_HROBJ-DOKOB, sy-vline,
  WA_/ISDFPS/ST_DVS_HROBJ-OBZAE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/ST_DVS_HROBJ 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_/ISDFPS/ST_DVS_HROBJ 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_/ISDFPS/ST_DVS_HROBJ INTO WA_/ISDFPS/ST_DVS_HROBJ.


*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 ALPHA, internal->external for field DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/ST_DVS_HROBJ-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/ST_DVS_HROBJ-DOKNR.
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_/ISDFPS/ST_DVS_HROBJ_STR, 
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
STEXT TYPE STRING,
MANDT TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
DOKOB TYPE STRING,
OBZAE TYPE STRING,
OBJKY TYPE STRING,
VRKSTAT TYPE STRING,
VRKSTAT1 TYPE STRING,
VOBJ TYPE STRING,
VKEY TYPE STRING,
VDIR TYPE STRING,
VIEWFLAG TYPE STRING,
DELFLAG TYPE STRING,
LONGTEXT_ID TYPE STRING,
CAD_POS TYPE STRING,
CM_FIXED TYPE STRING,
ARCHFLAG TYPE STRING,
DUMMY_DRAD_INCL_EEW_PS TYPE STRING,
BO_ALTKEY TYPE STRING,
SET_TYPE TYPE STRING,
SET_TEXT TYPE STRING,
SET_CLASS TYPE STRING,
SET_AUTH TYPE STRING,
TAB_MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/ST_DVS_HROBJ_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_/ISDFPS/ST_DVS_HROBJ_STR-PLVAR sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-OTYPE sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-OBJID sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-STEXT sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-MANDT sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DOKAR sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DOKNR sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DOKVR sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DOKTL sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DOKOB sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-OBZAE sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-OBJKY sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-VRKSTAT sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-VRKSTAT1 sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-VOBJ sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-VKEY sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-VDIR sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-VIEWFLAG sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DELFLAG sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-LONGTEXT_ID sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-CAD_POS sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-CM_FIXED sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-ARCHFLAG sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-DUMMY_DRAD_INCL_EEW_PS sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-BO_ALTKEY sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-SET_TYPE sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-SET_TEXT sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-SET_CLASS sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-SET_AUTH sy-vline 
WA_/ISDFPS/ST_DVS_HROBJ_STR-TAB_MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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