ABAP Select data from SAP table RDEFAULT_UI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDEFAULT_UI
*  INTO TABLE @DATA(IT_RDEFAULT_UI2).
*--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_RDEFAULT_UI INDEX 1 INTO DATA(WA_RDEFAULT_UI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDEFAULT_UI>-PAYM_STATUS = 1.
<RDEFAULT_UI>-DAT_FULL_PAY = 1.
<RDEFAULT_UI>-OVERDUE_ITEMS = 1.
<RDEFAULT_UI>-VDDEF_COUNTER = 1.
<RDEFAULT_UI>-VDDUNN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDEFAULT_UI-RDLCHARGES, sy-vline,
  WA_RDEFAULT_UI-CYEAR, sy-vline,
  WA_RDEFAULT_UI-TRAMYEAR, sy-vline,
  WA_RDEFAULT_UI-TRAMPY, sy-vline,
  WA_RDEFAULT_UI-TRAMLIFE, sy-vline,
  WA_RDEFAULT_UI-TRASSMYEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDEFAULT_UI 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_RDEFAULT_UI 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_RDEFAULT_UI INTO WA_RDEFAULT_UI.


*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_RDEFAULT_UI_STR, 
PAYM_STATUS TYPE STRING,
DAT_FULL_PAY TYPE STRING,
OVERDUE_ITEMS TYPE STRING,
VDDEF_COUNTER TYPE STRING,
VDDUNN TYPE STRING,
RDLCHARGES TYPE STRING,
CYEAR TYPE STRING,
TRAMYEAR TYPE STRING,
TRAMPY TYPE STRING,
TRAMLIFE TYPE STRING,
TRASSMYEAR TYPE STRING,
TRASSMPY TYPE STRING,
TRASSMLIFE TYPE STRING,
RDEFGENERALDATA TYPE STRING,
PAYM_STATUS TYPE STRING,
DUNN_BLOCK_TILL TYPE STRING,
SDUNNCMP TYPE STRING,
XNODUNN TYPE STRING,
GRACE_DAYS TYPE STRING,
GRACE_DAYS TYPE STRING,
RDDEFCF_DATA TYPE STRING,
DLASTFP TYPE STRING,
NEXT_PDUED TYPE STRING,
NEXT_SCHP TYPE STRING,
DLASTP TYPE STRING,
DLASTBILL TYPE STRING,
DFIRSTDISB TYPE STRING,
CALCDATE TYPE STRING,
FPAYMA TYPE STRING,
PPAYMA TYPE STRING,
PASTDUEA TYPE STRING,
PRINCA TYPE STRING,
INTERESTA TYPE STRING,
FEEA TYPE STRING,
DAYS_PDUE TYPE STRING,
NSCHPMA TYPE STRING,
NOAINTBAL TYPE STRING,
NOAINT TYPE STRING,
CNT_RATE TYPE STRING,
UI_HEADINGS TYPE STRING,
GDATTXT TYPE STRING,
LCTXT TYPE STRING,
CCTXT TYPE STRING,
CHTXT TYPE STRING,
BATXT TYPE STRING,
NPTXT TYPE STRING,
ZVTXT TYPE STRING,
CLTXT TYPE STRING,
GDATDEFTXT TYPE STRING,
RESIDUES TYPE STRING,
SCHEDULED TYPE STRING,
IACR TYPE STRING,
LYTXT TYPE STRING,
YTXT TYPE STRING,
LTTXT TYPE STRING,
RDEFAULT_UI_CF TYPE STRING,
DUNN_BLOCK_TILL TYPE STRING,
XNODUNN TYPE STRING,
FLG_NON_ACCRUAL TYPE STRING,
D_ACCRUAL TYPE STRING,
SDUNNCMP TYPE STRING,
GRACEDAYS TYPE STRING,
D_NON_ACCRUAL TYPE STRING,
RDDEFAULT_STATUS TYPE STRING,
STATUS TYPE STRING,
TEXT TYPE STRING,
CURRENCY_DEF TYPE STRING,
FEES TYPE STRING,
CALCDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDEFAULT_UI_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_RDEFAULT_UI_STR-PAYM_STATUS sy-vline 
WA_RDEFAULT_UI_STR-DAT_FULL_PAY sy-vline 
WA_RDEFAULT_UI_STR-OVERDUE_ITEMS sy-vline 
WA_RDEFAULT_UI_STR-VDDEF_COUNTER sy-vline 
WA_RDEFAULT_UI_STR-VDDUNN sy-vline 
WA_RDEFAULT_UI_STR-RDLCHARGES sy-vline 
WA_RDEFAULT_UI_STR-CYEAR sy-vline 
WA_RDEFAULT_UI_STR-TRAMYEAR sy-vline 
WA_RDEFAULT_UI_STR-TRAMPY sy-vline 
WA_RDEFAULT_UI_STR-TRAMLIFE sy-vline 
WA_RDEFAULT_UI_STR-TRASSMYEAR sy-vline 
WA_RDEFAULT_UI_STR-TRASSMPY sy-vline 
WA_RDEFAULT_UI_STR-TRASSMLIFE sy-vline 
WA_RDEFAULT_UI_STR-RDEFGENERALDATA sy-vline 
WA_RDEFAULT_UI_STR-PAYM_STATUS sy-vline 
WA_RDEFAULT_UI_STR-DUNN_BLOCK_TILL sy-vline 
WA_RDEFAULT_UI_STR-SDUNNCMP sy-vline 
WA_RDEFAULT_UI_STR-XNODUNN sy-vline 
WA_RDEFAULT_UI_STR-GRACE_DAYS sy-vline 
WA_RDEFAULT_UI_STR-GRACE_DAYS sy-vline 
WA_RDEFAULT_UI_STR-RDDEFCF_DATA sy-vline 
WA_RDEFAULT_UI_STR-DLASTFP sy-vline 
WA_RDEFAULT_UI_STR-NEXT_PDUED sy-vline 
WA_RDEFAULT_UI_STR-NEXT_SCHP sy-vline 
WA_RDEFAULT_UI_STR-DLASTP sy-vline 
WA_RDEFAULT_UI_STR-DLASTBILL sy-vline 
WA_RDEFAULT_UI_STR-DFIRSTDISB sy-vline 
WA_RDEFAULT_UI_STR-CALCDATE sy-vline 
WA_RDEFAULT_UI_STR-FPAYMA sy-vline 
WA_RDEFAULT_UI_STR-PPAYMA sy-vline 
WA_RDEFAULT_UI_STR-PASTDUEA sy-vline 
WA_RDEFAULT_UI_STR-PRINCA sy-vline 
WA_RDEFAULT_UI_STR-INTERESTA sy-vline 
WA_RDEFAULT_UI_STR-FEEA sy-vline 
WA_RDEFAULT_UI_STR-DAYS_PDUE sy-vline 
WA_RDEFAULT_UI_STR-NSCHPMA sy-vline 
WA_RDEFAULT_UI_STR-NOAINTBAL sy-vline 
WA_RDEFAULT_UI_STR-NOAINT sy-vline 
WA_RDEFAULT_UI_STR-CNT_RATE sy-vline 
WA_RDEFAULT_UI_STR-UI_HEADINGS sy-vline 
WA_RDEFAULT_UI_STR-GDATTXT sy-vline 
WA_RDEFAULT_UI_STR-LCTXT sy-vline 
WA_RDEFAULT_UI_STR-CCTXT sy-vline 
WA_RDEFAULT_UI_STR-CHTXT sy-vline 
WA_RDEFAULT_UI_STR-BATXT sy-vline 
WA_RDEFAULT_UI_STR-NPTXT sy-vline 
WA_RDEFAULT_UI_STR-ZVTXT sy-vline 
WA_RDEFAULT_UI_STR-CLTXT sy-vline 
WA_RDEFAULT_UI_STR-GDATDEFTXT sy-vline 
WA_RDEFAULT_UI_STR-RESIDUES sy-vline 
WA_RDEFAULT_UI_STR-SCHEDULED sy-vline 
WA_RDEFAULT_UI_STR-IACR sy-vline 
WA_RDEFAULT_UI_STR-LYTXT sy-vline 
WA_RDEFAULT_UI_STR-YTXT sy-vline 
WA_RDEFAULT_UI_STR-LTTXT sy-vline 
WA_RDEFAULT_UI_STR-RDEFAULT_UI_CF sy-vline 
WA_RDEFAULT_UI_STR-DUNN_BLOCK_TILL sy-vline 
WA_RDEFAULT_UI_STR-XNODUNN sy-vline 
WA_RDEFAULT_UI_STR-FLG_NON_ACCRUAL sy-vline 
WA_RDEFAULT_UI_STR-D_ACCRUAL sy-vline 
WA_RDEFAULT_UI_STR-SDUNNCMP sy-vline 
WA_RDEFAULT_UI_STR-GRACEDAYS sy-vline 
WA_RDEFAULT_UI_STR-D_NON_ACCRUAL sy-vline 
WA_RDEFAULT_UI_STR-RDDEFAULT_STATUS sy-vline 
WA_RDEFAULT_UI_STR-STATUS sy-vline 
WA_RDEFAULT_UI_STR-TEXT sy-vline 
WA_RDEFAULT_UI_STR-CURRENCY_DEF sy-vline 
WA_RDEFAULT_UI_STR-FEES sy-vline 
WA_RDEFAULT_UI_STR-CALCDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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