ABAP Select data from SAP table RFPDO_DTIN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFPDO_DTIN
*  INTO TABLE @DATA(IT_RFPDO_DTIN2).
*--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_RFPDO_DTIN INDEX 1 INTO DATA(WA_RFPDO_DTIN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFPDO_DTIN>-READ_PRG = 1.
<RFPDO_DTIN>-XEXPERT = 1.
<RFPDO_DTIN>-XRADIO = 1.
<RFPDO_DTIN>-XUSEDB = 1.
<RFPDO_DTIN>-XCHUSEDB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFPDO_DTIN-XDSUSEDB, sy-vline,
  WA_RFPDO_DTIN-XUSEAR, sy-vline,
  WA_RFPDO_DTIN-XUSARALL, sy-vline,
  WA_RFPDO_DTIN-XCHUSEAR, sy-vline,
  WA_RFPDO_DTIN-XDSUSEAR, sy-vline,
  WA_RFPDO_DTIN-XCHAROBJ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFPDO_DTIN 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_RFPDO_DTIN 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_RFPDO_DTIN INTO WA_RFPDO_DTIN.


*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_RFPDO_DTIN_STR, 
READ_PRG TYPE STRING,
XEXPERT TYPE STRING,
XRADIO TYPE STRING,
XUSEDB TYPE STRING,
XCHUSEDB TYPE STRING,
XDSUSEDB TYPE STRING,
XUSEAR TYPE STRING,
XUSARALL TYPE STRING,
XCHUSEAR TYPE STRING,
XDSUSEAR TYPE STRING,
XCHAROBJ TYPE STRING,
XDSAROBJ TYPE STRING,
XEMUCNV TYPE STRING,
XCHEMUCNV TYPE STRING,
XDSEMUCNV TYPE STRING,
OBJECT TYPE STRING,
XARFILES TYPE STRING,
ARUSETYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFPDO_DTIN_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_RFPDO_DTIN_STR-READ_PRG sy-vline 
WA_RFPDO_DTIN_STR-XEXPERT sy-vline 
WA_RFPDO_DTIN_STR-XRADIO sy-vline 
WA_RFPDO_DTIN_STR-XUSEDB sy-vline 
WA_RFPDO_DTIN_STR-XCHUSEDB sy-vline 
WA_RFPDO_DTIN_STR-XDSUSEDB sy-vline 
WA_RFPDO_DTIN_STR-XUSEAR sy-vline 
WA_RFPDO_DTIN_STR-XUSARALL sy-vline 
WA_RFPDO_DTIN_STR-XCHUSEAR sy-vline 
WA_RFPDO_DTIN_STR-XDSUSEAR sy-vline 
WA_RFPDO_DTIN_STR-XCHAROBJ sy-vline 
WA_RFPDO_DTIN_STR-XDSAROBJ sy-vline 
WA_RFPDO_DTIN_STR-XEMUCNV sy-vline 
WA_RFPDO_DTIN_STR-XCHEMUCNV sy-vline 
WA_RFPDO_DTIN_STR-XDSEMUCNV sy-vline 
WA_RFPDO_DTIN_STR-OBJECT sy-vline 
WA_RFPDO_DTIN_STR-XARFILES sy-vline 
WA_RFPDO_DTIN_STR-ARUSETYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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