ABAP Select data from SAP table RPCSXXXX into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RPCSXXXX 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 RPCSXXXX. 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 RPCSXXXX 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_RPCSXXXX TYPE STANDARD TABLE OF RPCSXXXX,
      WA_RPCSXXXX TYPE RPCSXXXX,
      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: <RPCSXXXX> TYPE RPCSXXXX.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RPCSXXXX
*  INTO TABLE @DATA(IT_RPCSXXXX2).
*--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_RPCSXXXX INDEX 1 INTO DATA(WA_RPCSXXXX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RPCSXXXX>-SYMB_IN = 1.
<RPCSXXXX>-DSN02 = 1.
<RPCSXXXX>-MACOD = 1.
<RPCSXXXX>-VERSION_RP = 1.
<RPCSXXXX>-DUMMY2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RPCSXXXX-SORT1, sy-vline,
  WA_RPCSXXXX-GR_SUM, sy-vline,
  WA_RPCSXXXX-TRENN_BL, sy-vline,
  WA_RPCSXXXX-FUER_PER, sy-vline,
  WA_RPCSXXXX-PEP1_ZUS, sy-vline,
  WA_RPCSXXXX-PEJ1_ZUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RPCSXXXX 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_RPCSXXXX 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_RPCSXXXX INTO WA_RPCSXXXX.


*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 PEJ1_ZUS
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RPCSXXXX-PEJ1_ZUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RPCSXXXX-PEJ1_ZUS.
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_RPCSXXXX_STR, 
SYMB_IN TYPE STRING,
DSN02 TYPE STRING,
MACOD TYPE STRING,
VERSION_RP TYPE STRING,
DUMMY2 TYPE STRING,
SORT1 TYPE STRING,
GR_SUM TYPE STRING,
TRENN_BL TYPE STRING,
FUER_PER TYPE STRING,
PEP1_ZUS TYPE STRING,
PEJ1_ZUS TYPE STRING,
SW_BUCHE TYPE STRING,
P_GFIBU TYPE STRING,
SW_DIFF TYPE STRING,
UMSREGEL TYPE STRING,
AUSSTELL TYPE STRING,
LINKRAND TYPE STRING,
TESTHILF TYPE STRING,
FORM_BR TYPE STRING,
ANZFORM TYPE STRING,
AUSWAHL TYPE STRING,
VJAHR_PE TYPE STRING,
T558A TYPE STRING,
UMSETZMM TYPE STRING,
TABNA TYPE STRING,
STPFL TYPE STRING,
DATUM TYPE STRING,
STUFEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RPCSXXXX_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_RPCSXXXX_STR-SYMB_IN sy-vline 
WA_RPCSXXXX_STR-DSN02 sy-vline 
WA_RPCSXXXX_STR-MACOD sy-vline 
WA_RPCSXXXX_STR-VERSION_RP sy-vline 
WA_RPCSXXXX_STR-DUMMY2 sy-vline 
WA_RPCSXXXX_STR-SORT1 sy-vline 
WA_RPCSXXXX_STR-GR_SUM sy-vline 
WA_RPCSXXXX_STR-TRENN_BL sy-vline 
WA_RPCSXXXX_STR-FUER_PER sy-vline 
WA_RPCSXXXX_STR-PEP1_ZUS sy-vline 
WA_RPCSXXXX_STR-PEJ1_ZUS sy-vline 
WA_RPCSXXXX_STR-SW_BUCHE sy-vline 
WA_RPCSXXXX_STR-P_GFIBU sy-vline 
WA_RPCSXXXX_STR-SW_DIFF sy-vline 
WA_RPCSXXXX_STR-UMSREGEL sy-vline 
WA_RPCSXXXX_STR-AUSSTELL sy-vline 
WA_RPCSXXXX_STR-LINKRAND sy-vline 
WA_RPCSXXXX_STR-TESTHILF sy-vline 
WA_RPCSXXXX_STR-FORM_BR sy-vline 
WA_RPCSXXXX_STR-ANZFORM sy-vline 
WA_RPCSXXXX_STR-AUSWAHL sy-vline 
WA_RPCSXXXX_STR-VJAHR_PE sy-vline 
WA_RPCSXXXX_STR-T558A sy-vline 
WA_RPCSXXXX_STR-UMSETZMM sy-vline 
WA_RPCSXXXX_STR-TABNA sy-vline 
WA_RPCSXXXX_STR-STPFL sy-vline 
WA_RPCSXXXX_STR-DATUM sy-vline 
WA_RPCSXXXX_STR-STUFEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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