ABAP Select data from SAP table HRDESV_D3_S_DSAP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRDESV_D3_S_DSAP 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 HRDESV_D3_S_DSAP. 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 HRDESV_D3_S_DSAP 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_HRDESV_D3_S_DSAP TYPE STANDARD TABLE OF HRDESV_D3_S_DSAP,
      WA_HRDESV_D3_S_DSAP TYPE HRDESV_D3_S_DSAP,
      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: <HRDESV_D3_S_DSAP> TYPE HRDESV_D3_S_DSAP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRDESV_D3_S_DSAP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRDESV_D3_S_DSAP
  INTO TABLE IT_HRDESV_D3_S_DSAP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRDESV_D3_S_DSAP
*  INTO TABLE @DATA(IT_HRDESV_D3_S_DSAP2).
*--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_HRDESV_D3_S_DSAP INDEX 1 INTO DATA(WA_HRDESV_D3_S_DSAP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRDESV_D3_S_DSAP ASSIGNING <HRDESV_D3_S_DSAP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRDESV_D3_S_DSAP>-GUID = 1.
<HRDESV_D3_S_DSAP>-MDTYP = 1.
<HRDESV_D3_S_DSAP>-STATUS = 1.
<HRDESV_D3_S_DSAP>-MZRBEG = 1.
<HRDESV_D3_S_DSAP>-MZREND = 1.

ENDLOOP.

LOOP AT IT_HRDESV_D3_S_DSAP INTO WA_HRDESV_D3_S_DSAP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRDESV_D3_S_DSAP-GRUND, sy-vline,
  WA_HRDESV_D3_S_DSAP-GDINT, sy-vline,
  WA_HRDESV_D3_S_DSAP-D3TYP, sy-vline,
  WA_HRDESV_D3_S_DSAP-GUID_STORN, sy-vline,
  WA_HRDESV_D3_S_DSAP-GUID_CNECT, sy-vline,
  WA_HRDESV_D3_S_DSAP-DATUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRDESV_D3_S_DSAP 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_HRDESV_D3_S_DSAP 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_HRDESV_D3_S_DSAP INTO WA_HRDESV_D3_S_DSAP.


*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 GJAHR, internal->external for field PABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_HRDESV_D3_S_DSAP-PABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HRDESV_D3_S_DSAP-PABRJ.
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_HRDESV_D3_S_DSAP_STR, 
GUID TYPE STRING,
MDTYP TYPE STRING,
STATUS TYPE STRING,
MZRBEG TYPE STRING,
MZREND TYPE STRING,
GRUND TYPE STRING,
GDINT TYPE STRING,
D3TYP TYPE STRING,
GUID_STORN TYPE STRING,
GUID_CNECT TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
REPORT TYPE STRING,
EUSER TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
KKART TYPE STRING,
BTRNR TYPE STRING,
PABRP TYPE STRING,
PABRJ TYPE STRING,
ADATUM TYPE STRING,
PERNR TYPE STRING,
JAHR TYPE STRING,
MNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRDESV_D3_S_DSAP_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_HRDESV_D3_S_DSAP_STR-GUID sy-vline 
WA_HRDESV_D3_S_DSAP_STR-MDTYP sy-vline 
WA_HRDESV_D3_S_DSAP_STR-STATUS sy-vline 
WA_HRDESV_D3_S_DSAP_STR-MZRBEG sy-vline 
WA_HRDESV_D3_S_DSAP_STR-MZREND sy-vline 
WA_HRDESV_D3_S_DSAP_STR-GRUND sy-vline 
WA_HRDESV_D3_S_DSAP_STR-GDINT sy-vline 
WA_HRDESV_D3_S_DSAP_STR-D3TYP sy-vline 
WA_HRDESV_D3_S_DSAP_STR-GUID_STORN sy-vline 
WA_HRDESV_D3_S_DSAP_STR-GUID_CNECT sy-vline 
WA_HRDESV_D3_S_DSAP_STR-DATUM sy-vline 
WA_HRDESV_D3_S_DSAP_STR-UZEIT sy-vline 
WA_HRDESV_D3_S_DSAP_STR-REPORT sy-vline 
WA_HRDESV_D3_S_DSAP_STR-EUSER sy-vline 
WA_HRDESV_D3_S_DSAP_STR-WERKS sy-vline 
WA_HRDESV_D3_S_DSAP_STR-BTRTL sy-vline 
WA_HRDESV_D3_S_DSAP_STR-KKART sy-vline 
WA_HRDESV_D3_S_DSAP_STR-BTRNR sy-vline 
WA_HRDESV_D3_S_DSAP_STR-PABRP sy-vline 
WA_HRDESV_D3_S_DSAP_STR-PABRJ sy-vline 
WA_HRDESV_D3_S_DSAP_STR-ADATUM sy-vline 
WA_HRDESV_D3_S_DSAP_STR-PERNR sy-vline 
WA_HRDESV_D3_S_DSAP_STR-JAHR sy-vline 
WA_HRDESV_D3_S_DSAP_STR-MNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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