ABAP Select data from SAP table SHDDFVARP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHDDFVARP
*  INTO TABLE @DATA(IT_SHDDFVARP2).
*--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_SHDDFVARP INDEX 1 INTO DATA(WA_SHDDFVARP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHDDFVARP>-ID = 1.
<SHDDFVARP>-PROGNAME = 1.
<SHDDFVARP>-DYNPRO = 1.
<SHDDFVARP>-P_ID = 1.
<SHDDFVARP>-FIELDNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHDDFVARP-STEPL, sy-vline,
  WA_SHDDFVARP-STXT, sy-vline,
  WA_SHDDFVARP-REFFIELD, sy-vline,
  WA_SHDDFVARP-TYPE, sy-vline,
  WA_SHDDFVARP-POS_X_DY, sy-vline,
  WA_SHDDFVARP-POS_Y_DY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SHDDFVARP 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_SHDDFVARP 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_SHDDFVARP INTO WA_SHDDFVARP.


*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_SHDDFVARP_STR, 
ID TYPE STRING,
PROGNAME TYPE STRING,
DYNPRO TYPE STRING,
P_ID TYPE STRING,
FIELDNAME TYPE STRING,
STEPL TYPE STRING,
STXT TYPE STRING,
REFFIELD TYPE STRING,
TYPE TYPE STRING,
POS_X_DY TYPE STRING,
POS_Y_DY TYPE STRING,
WIDTH_DY TYPE STRING,
HEIGHT_DY TYPE STRING,
MXWIDTH_DY TYPE STRING,
MXHEIGH_DY TYPE STRING,
ORIGINX_DY TYPE STRING,
ORIGINY_DY TYPE STRING,
DGROUP_DY TYPE STRING,
FIELDV_DY TYPE STRING,
ACTIVE_DY TYPE STRING,
INPOFF_DY TYPE STRING,
OBLIG_DY TYPE STRING,
FLAG_SCVAR TYPE STRING,
FIELDVALUE TYPE STRING,
ACTIVE TYPE STRING,
INPUT_OFF TYPE STRING,
SUPPRESS TYPE STRING,
OBLIGATORY TYPE STRING,
ITYPE TYPE STRING,
FTYPE TYPE STRING,
CONTAINER TYPE STRING,
TC_COLUMN TYPE STRING,
TC_VISLEN TYPE STRING,
FLAG_GUIXT TYPE STRING,
FIELDV_XT TYPE STRING,
ACTIVE_XT TYPE STRING,
INPOFF_XT TYPE STRING,
POS_X_XT TYPE STRING,
POS_Y_XT TYPE STRING,
WIDTH_XT TYPE STRING,
HEIGHT_XT TYPE STRING,
OPTION1_XT TYPE STRING,
OPTION2_XT TYPE STRING,
OPTION3_XT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHDDFVARP_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_SHDDFVARP_STR-ID sy-vline 
WA_SHDDFVARP_STR-PROGNAME sy-vline 
WA_SHDDFVARP_STR-DYNPRO sy-vline 
WA_SHDDFVARP_STR-P_ID sy-vline 
WA_SHDDFVARP_STR-FIELDNAME sy-vline 
WA_SHDDFVARP_STR-STEPL sy-vline 
WA_SHDDFVARP_STR-STXT sy-vline 
WA_SHDDFVARP_STR-REFFIELD sy-vline 
WA_SHDDFVARP_STR-TYPE sy-vline 
WA_SHDDFVARP_STR-POS_X_DY sy-vline 
WA_SHDDFVARP_STR-POS_Y_DY sy-vline 
WA_SHDDFVARP_STR-WIDTH_DY sy-vline 
WA_SHDDFVARP_STR-HEIGHT_DY sy-vline 
WA_SHDDFVARP_STR-MXWIDTH_DY sy-vline 
WA_SHDDFVARP_STR-MXHEIGH_DY sy-vline 
WA_SHDDFVARP_STR-ORIGINX_DY sy-vline 
WA_SHDDFVARP_STR-ORIGINY_DY sy-vline 
WA_SHDDFVARP_STR-DGROUP_DY sy-vline 
WA_SHDDFVARP_STR-FIELDV_DY sy-vline 
WA_SHDDFVARP_STR-ACTIVE_DY sy-vline 
WA_SHDDFVARP_STR-INPOFF_DY sy-vline 
WA_SHDDFVARP_STR-OBLIG_DY sy-vline 
WA_SHDDFVARP_STR-FLAG_SCVAR sy-vline 
WA_SHDDFVARP_STR-FIELDVALUE sy-vline 
WA_SHDDFVARP_STR-ACTIVE sy-vline 
WA_SHDDFVARP_STR-INPUT_OFF sy-vline 
WA_SHDDFVARP_STR-SUPPRESS sy-vline 
WA_SHDDFVARP_STR-OBLIGATORY sy-vline 
WA_SHDDFVARP_STR-ITYPE sy-vline 
WA_SHDDFVARP_STR-FTYPE sy-vline 
WA_SHDDFVARP_STR-CONTAINER sy-vline 
WA_SHDDFVARP_STR-TC_COLUMN sy-vline 
WA_SHDDFVARP_STR-TC_VISLEN sy-vline 
WA_SHDDFVARP_STR-FLAG_GUIXT sy-vline 
WA_SHDDFVARP_STR-FIELDV_XT sy-vline 
WA_SHDDFVARP_STR-ACTIVE_XT sy-vline 
WA_SHDDFVARP_STR-INPOFF_XT sy-vline 
WA_SHDDFVARP_STR-POS_X_XT sy-vline 
WA_SHDDFVARP_STR-POS_Y_XT sy-vline 
WA_SHDDFVARP_STR-WIDTH_XT sy-vline 
WA_SHDDFVARP_STR-HEIGHT_XT sy-vline 
WA_SHDDFVARP_STR-OPTION1_XT sy-vline 
WA_SHDDFVARP_STR-OPTION2_XT sy-vline 
WA_SHDDFVARP_STR-OPTION3_XT sy-vline      INTO ld_text SEPARATED BY SPACE.

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