ABAP Select data from SAP table RP50I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RP50I 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 RP50I. 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 RP50I 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_RP50I TYPE STANDARD TABLE OF RP50I,
      WA_RP50I TYPE RP50I,
      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: <RP50I> TYPE RP50I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RP50I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RP50I
  INTO TABLE IT_RP50I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RP50I
*  INTO TABLE @DATA(IT_RP50I2).
*--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_RP50I INDEX 1 INTO DATA(WA_RP50I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RP50I ASSIGNING <RP50I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RP50I>-INFTY = 1.
<RP50I>-DEVCLASS = 1.
<RP50I>-BLDEVCLASS = 1.
<RP50I>-UIDEVCLASS = 1.
<RP50I>-ITNEU = 1.

ENDLOOP.

LOOP AT IT_RP50I INTO WA_RP50I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RP50I-ITCOP, sy-vline,
  WA_RP50I-T588A, sy-vline,
  WA_RP50I-T582A, sy-vline,
  WA_RP50I-MPOOL, sy-vline,
  WA_RP50I-BADI, sy-vline,
  WA_RP50I-EDYNL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RP50I 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_RP50I 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_RP50I INTO WA_RP50I.


*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 ISOLA, internal->external for field MASTERLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RP50I-MASTERLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RP50I-MASTERLANG.
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_RP50I_STR, 
INFTY TYPE STRING,
DEVCLASS TYPE STRING,
BLDEVCLASS TYPE STRING,
UIDEVCLASS TYPE STRING,
ITNEU TYPE STRING,
ITCOP TYPE STRING,
T588A TYPE STRING,
T582A TYPE STRING,
MPOOL TYPE STRING,
BADI TYPE STRING,
EDYNL TYPE STRING,
EPFKY TYPE STRING,
CHKCL TYPE STRING,
CONVCL TYPE STRING,
SCRNS TYPE STRING,
S1000 TYPE STRING,
S2000 TYPE STRING,
S3000 TYPE STRING,
PGMNA TYPE STRING,
DYNNR TYPE STRING,
LDYNR TYPE STRING,
NINFT TYPE STRING,
NPGMN TYPE STRING,
NDYNN TYPE STRING,
EPGMN TYPE STRING,
EDYNN TYPE STRING,
MPCOP TYPE STRING,
DYCOP TYPE STRING,
PFCOP TYPE STRING,
MSNDF TYPE STRING,
T529A TYPE STRING,
T529F TYPE STRING,
GENER TYPE STRING,
T588Z TYPE STRING,
CABAP TYPE STRING,
CSCRP TYPE STRING,
CSCUA TYPE STRING,
CDDIC TYPE STRING,
CINCL TYPE STRING,
EDYNX TYPE STRING,
LDYNX TYPE STRING,
LISTS TYPE STRING,
TCLAS_EMPLOYEE TYPE STRING,
TCLAS_APPLICANT TYPE STRING,
TCLAS_BOTH TYPE STRING,
VINFT TYPE STRING,
EXPERT TYPE STRING,
SRCSYSTEM TYPE STRING,
MASTERLANG TYPE STRING,
SPTXT TYPE STRING,
AUTHOR TYPE STRING,
NAME_TEXT TYPE STRING,
VERSID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RP50I_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_RP50I_STR-INFTY sy-vline 
WA_RP50I_STR-DEVCLASS sy-vline 
WA_RP50I_STR-BLDEVCLASS sy-vline 
WA_RP50I_STR-UIDEVCLASS sy-vline 
WA_RP50I_STR-ITNEU sy-vline 
WA_RP50I_STR-ITCOP sy-vline 
WA_RP50I_STR-T588A sy-vline 
WA_RP50I_STR-T582A sy-vline 
WA_RP50I_STR-MPOOL sy-vline 
WA_RP50I_STR-BADI sy-vline 
WA_RP50I_STR-EDYNL sy-vline 
WA_RP50I_STR-EPFKY sy-vline 
WA_RP50I_STR-CHKCL sy-vline 
WA_RP50I_STR-CONVCL sy-vline 
WA_RP50I_STR-SCRNS sy-vline 
WA_RP50I_STR-S1000 sy-vline 
WA_RP50I_STR-S2000 sy-vline 
WA_RP50I_STR-S3000 sy-vline 
WA_RP50I_STR-PGMNA sy-vline 
WA_RP50I_STR-DYNNR sy-vline 
WA_RP50I_STR-LDYNR sy-vline 
WA_RP50I_STR-NINFT sy-vline 
WA_RP50I_STR-NPGMN sy-vline 
WA_RP50I_STR-NDYNN sy-vline 
WA_RP50I_STR-EPGMN sy-vline 
WA_RP50I_STR-EDYNN sy-vline 
WA_RP50I_STR-MPCOP sy-vline 
WA_RP50I_STR-DYCOP sy-vline 
WA_RP50I_STR-PFCOP sy-vline 
WA_RP50I_STR-MSNDF sy-vline 
WA_RP50I_STR-T529A sy-vline 
WA_RP50I_STR-T529F sy-vline 
WA_RP50I_STR-GENER sy-vline 
WA_RP50I_STR-T588Z sy-vline 
WA_RP50I_STR-CABAP sy-vline 
WA_RP50I_STR-CSCRP sy-vline 
WA_RP50I_STR-CSCUA sy-vline 
WA_RP50I_STR-CDDIC sy-vline 
WA_RP50I_STR-CINCL sy-vline 
WA_RP50I_STR-EDYNX sy-vline 
WA_RP50I_STR-LDYNX sy-vline 
WA_RP50I_STR-LISTS sy-vline 
WA_RP50I_STR-TCLAS_EMPLOYEE sy-vline 
WA_RP50I_STR-TCLAS_APPLICANT sy-vline 
WA_RP50I_STR-TCLAS_BOTH sy-vline 
WA_RP50I_STR-VINFT sy-vline 
WA_RP50I_STR-EXPERT sy-vline 
WA_RP50I_STR-SRCSYSTEM sy-vline 
WA_RP50I_STR-MASTERLANG sy-vline 
WA_RP50I_STR-SPTXT sy-vline 
WA_RP50I_STR-AUTHOR sy-vline 
WA_RP50I_STR-NAME_TEXT sy-vline 
WA_RP50I_STR-VERSID sy-vline      INTO ld_text SEPARATED BY SPACE.

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