ABAP Select data from SAP table RPCKULD0_LTAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCKULD0_LTAB 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 RPCKULD0_LTAB. 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 RPCKULD0_LTAB 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_RPCKULD0_LTAB TYPE STANDARD TABLE OF RPCKULD0_LTAB,
      WA_RPCKULD0_LTAB TYPE RPCKULD0_LTAB,
      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: <RPCKULD0_LTAB> TYPE RPCKULD0_LTAB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCKULD0_LTAB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCKULD0_LTAB
  INTO TABLE IT_RPCKULD0_LTAB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCKULD0_LTAB
*  INTO TABLE @DATA(IT_RPCKULD0_LTAB2).
*--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_RPCKULD0_LTAB INDEX 1 INTO DATA(WA_RPCKULD0_LTAB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCKULD0_LTAB ASSIGNING <RPCKULD0_LTAB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCKULD0_LTAB>-LIART = 1.
<RPCKULD0_LTAB>-BUKRS = 1.
<RPCKULD0_LTAB>-KURFN = 1.
<RPCKULD0_LTAB>-KVSFR = 1.
<RPCKULD0_LTAB>-WAERS = 1.

ENDLOOP.

LOOP AT IT_RPCKULD0_LTAB INTO WA_RPCKULD0_LTAB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCKULD0_LTAB-PERIO, sy-vline,
  WA_RPCKULD0_LTAB-INPER, sy-vline,
  WA_RPCKULD0_LTAB-PERNR, sy-vline,
  WA_RPCKULD0_LTAB-NAME, sy-vline,
  WA_RPCKULD0_LTAB-NACHN, sy-vline,
  WA_RPCKULD0_LTAB-VORNA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCKULD0_LTAB 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_RPCKULD0_LTAB 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_RPCKULD0_LTAB INTO WA_RPCKULD0_LTAB.


*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_RPCKULD0_LTAB_STR, 
LIART TYPE STRING,
BUKRS TYPE STRING,
KURFN TYPE STRING,
KVSFR TYPE STRING,
WAERS TYPE STRING,
PERIO TYPE STRING,
INPER TYPE STRING,
PERNR TYPE STRING,
NAME TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
RVNUM TYPE STRING,
BUTXT TYPE STRING,
KUGNR TYPE STRING,
BTRNR TYPE STRING,
GEBEG TYPE STRING,
GEEND TYPE STRING,
KULGR TYPE STRING,
STRKL TYPE STRING,
GAUST TYPE STRING,
DGAUS TYPE STRING,
WAGST TYPE STRING,
WAUST TYPE STRING,
WAGLG TYPE STRING,
WAULG TYPE STRING,
SOLEG TYPE STRING,
DSOLE TYPE STRING,
ISTEG TYPE STRING,
DISTE TYPE STRING,
SOLNE TYPE STRING,
DSOLN TYPE STRING,
ISTNE TYPE STRING,
DISTN TYPE STRING,
LEIST TYPE STRING,
LEPST TYPE STRING,
REGST TYPE STRING,
MWGST TYPE STRING,
MWGLG TYPE STRING,
ZWGST TYPE STRING,
ZWGLG TYPE STRING,
KVBRU TYPE STRING,
DKVBR TYPE STRING,
RVBRU TYPE STRING,
DRVBR TYPE STRING,
PVBRU TYPE STRING,
DPVBR TYPE STRING,
KVBEI TYPE STRING,
DKVBE TYPE STRING,
RVBEI TYPE STRING,
DRVBE TYPE STRING,
PVBEI TYPE STRING,
DPVBE TYPE STRING,
GLKUG TYPE STRING,
GSKUG TYPE STRING,
GLKRG TYPE STRING,
GSKRG TYPE STRING,
GSWAG TYPE STRING,
NOUML TYPE STRING,
FAKTR TYPE STRING,
TRKUG TYPE STRING,
ZSBTR TYPE STRING,
PAUSV TYPE STRING,
BZMON TYPE STRING,
PVTXT TYPE STRING,
PVDAT TYPE STRING,
PSVWB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCKULD0_LTAB_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_RPCKULD0_LTAB_STR-LIART sy-vline 
WA_RPCKULD0_LTAB_STR-BUKRS sy-vline 
WA_RPCKULD0_LTAB_STR-KURFN sy-vline 
WA_RPCKULD0_LTAB_STR-KVSFR sy-vline 
WA_RPCKULD0_LTAB_STR-WAERS sy-vline 
WA_RPCKULD0_LTAB_STR-PERIO sy-vline 
WA_RPCKULD0_LTAB_STR-INPER sy-vline 
WA_RPCKULD0_LTAB_STR-PERNR sy-vline 
WA_RPCKULD0_LTAB_STR-NAME sy-vline 
WA_RPCKULD0_LTAB_STR-NACHN sy-vline 
WA_RPCKULD0_LTAB_STR-VORNA sy-vline 
WA_RPCKULD0_LTAB_STR-RVNUM sy-vline 
WA_RPCKULD0_LTAB_STR-BUTXT sy-vline 
WA_RPCKULD0_LTAB_STR-KUGNR sy-vline 
WA_RPCKULD0_LTAB_STR-BTRNR sy-vline 
WA_RPCKULD0_LTAB_STR-GEBEG sy-vline 
WA_RPCKULD0_LTAB_STR-GEEND sy-vline 
WA_RPCKULD0_LTAB_STR-KULGR sy-vline 
WA_RPCKULD0_LTAB_STR-STRKL sy-vline 
WA_RPCKULD0_LTAB_STR-GAUST sy-vline 
WA_RPCKULD0_LTAB_STR-DGAUS sy-vline 
WA_RPCKULD0_LTAB_STR-WAGST sy-vline 
WA_RPCKULD0_LTAB_STR-WAUST sy-vline 
WA_RPCKULD0_LTAB_STR-WAGLG sy-vline 
WA_RPCKULD0_LTAB_STR-WAULG sy-vline 
WA_RPCKULD0_LTAB_STR-SOLEG sy-vline 
WA_RPCKULD0_LTAB_STR-DSOLE sy-vline 
WA_RPCKULD0_LTAB_STR-ISTEG sy-vline 
WA_RPCKULD0_LTAB_STR-DISTE sy-vline 
WA_RPCKULD0_LTAB_STR-SOLNE sy-vline 
WA_RPCKULD0_LTAB_STR-DSOLN sy-vline 
WA_RPCKULD0_LTAB_STR-ISTNE sy-vline 
WA_RPCKULD0_LTAB_STR-DISTN sy-vline 
WA_RPCKULD0_LTAB_STR-LEIST sy-vline 
WA_RPCKULD0_LTAB_STR-LEPST sy-vline 
WA_RPCKULD0_LTAB_STR-REGST sy-vline 
WA_RPCKULD0_LTAB_STR-MWGST sy-vline 
WA_RPCKULD0_LTAB_STR-MWGLG sy-vline 
WA_RPCKULD0_LTAB_STR-ZWGST sy-vline 
WA_RPCKULD0_LTAB_STR-ZWGLG sy-vline 
WA_RPCKULD0_LTAB_STR-KVBRU sy-vline 
WA_RPCKULD0_LTAB_STR-DKVBR sy-vline 
WA_RPCKULD0_LTAB_STR-RVBRU sy-vline 
WA_RPCKULD0_LTAB_STR-DRVBR sy-vline 
WA_RPCKULD0_LTAB_STR-PVBRU sy-vline 
WA_RPCKULD0_LTAB_STR-DPVBR sy-vline 
WA_RPCKULD0_LTAB_STR-KVBEI sy-vline 
WA_RPCKULD0_LTAB_STR-DKVBE sy-vline 
WA_RPCKULD0_LTAB_STR-RVBEI sy-vline 
WA_RPCKULD0_LTAB_STR-DRVBE sy-vline 
WA_RPCKULD0_LTAB_STR-PVBEI sy-vline 
WA_RPCKULD0_LTAB_STR-DPVBE sy-vline 
WA_RPCKULD0_LTAB_STR-GLKUG sy-vline 
WA_RPCKULD0_LTAB_STR-GSKUG sy-vline 
WA_RPCKULD0_LTAB_STR-GLKRG sy-vline 
WA_RPCKULD0_LTAB_STR-GSKRG sy-vline 
WA_RPCKULD0_LTAB_STR-GSWAG sy-vline 
WA_RPCKULD0_LTAB_STR-NOUML sy-vline 
WA_RPCKULD0_LTAB_STR-FAKTR sy-vline 
WA_RPCKULD0_LTAB_STR-TRKUG sy-vline 
WA_RPCKULD0_LTAB_STR-ZSBTR sy-vline 
WA_RPCKULD0_LTAB_STR-PAUSV sy-vline 
WA_RPCKULD0_LTAB_STR-BZMON sy-vline 
WA_RPCKULD0_LTAB_STR-PVTXT sy-vline 
WA_RPCKULD0_LTAB_STR-PVDAT sy-vline 
WA_RPCKULD0_LTAB_STR-PSVWB sy-vline      INTO ld_text SEPARATED BY SPACE.

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