ABAP Select data from SAP table RPCD3PD0L into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCD3PD0L 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 RPCD3PD0L. 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 RPCD3PD0L 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_RPCD3PD0L TYPE STANDARD TABLE OF RPCD3PD0L,
      WA_RPCD3PD0L TYPE RPCD3PD0L,
      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: <RPCD3PD0L> TYPE RPCD3PD0L.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RPCD3PD0L.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RPCD3PD0L
  INTO TABLE IT_RPCD3PD0L.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCD3PD0L
*  INTO TABLE @DATA(IT_RPCD3PD0L2).
*--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_RPCD3PD0L INDEX 1 INTO DATA(WA_RPCD3PD0L2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RPCD3PD0L ASSIGNING <RPCD3PD0L>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCD3PD0L>-PERNR = 1.
<RPCD3PD0L>-CNAME = 1.
<RPCD3PD0L>-FPPER = 1.
<RPCD3PD0L>-INPER = 1.
<RPCD3PD0L>-FALL01 = 1.

ENDLOOP.

LOOP AT IT_RPCD3PD0L INTO WA_RPCD3PD0L.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCD3PD0L-FALL02, sy-vline,
  WA_RPCD3PD0L-FALL03, sy-vline,
  WA_RPCD3PD0L-FALL04, sy-vline,
  WA_RPCD3PD0L-FALL05, sy-vline,
  WA_RPCD3PD0L-FALL06, sy-vline,
  WA_RPCD3PD0L-FALL07, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCD3PD0L 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_RPCD3PD0L 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_RPCD3PD0L INTO WA_RPCD3PD0L.


*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_RPCD3PD0L_STR, 
PERNR TYPE STRING,
CNAME TYPE STRING,
FPPER TYPE STRING,
INPER TYPE STRING,
FALL01 TYPE STRING,
FALL02 TYPE STRING,
FALL03 TYPE STRING,
FALL04 TYPE STRING,
FALL05 TYPE STRING,
FALL06 TYPE STRING,
FALL07 TYPE STRING,
FALL08 TYPE STRING,
FALL09 TYPE STRING,
FALL10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCD3PD0L_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_RPCD3PD0L_STR-PERNR sy-vline 
WA_RPCD3PD0L_STR-CNAME sy-vline 
WA_RPCD3PD0L_STR-FPPER sy-vline 
WA_RPCD3PD0L_STR-INPER sy-vline 
WA_RPCD3PD0L_STR-FALL01 sy-vline 
WA_RPCD3PD0L_STR-FALL02 sy-vline 
WA_RPCD3PD0L_STR-FALL03 sy-vline 
WA_RPCD3PD0L_STR-FALL04 sy-vline 
WA_RPCD3PD0L_STR-FALL05 sy-vline 
WA_RPCD3PD0L_STR-FALL06 sy-vline 
WA_RPCD3PD0L_STR-FALL07 sy-vline 
WA_RPCD3PD0L_STR-FALL08 sy-vline 
WA_RPCD3PD0L_STR-FALL09 sy-vline 
WA_RPCD3PD0L_STR-FALL10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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