ABAP Select data from SAP table P2RO_RO_SI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RO_RO_SI 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 P2RO_RO_SI. 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 P2RO_RO_SI 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_P2RO_RO_SI TYPE STANDARD TABLE OF P2RO_RO_SI,
      WA_P2RO_RO_SI TYPE P2RO_RO_SI,
      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: <P2RO_RO_SI> TYPE P2RO_RO_SI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RO_RO_SI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RO_RO_SI
  INTO TABLE IT_P2RO_RO_SI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RO_RO_SI
*  INTO TABLE @DATA(IT_P2RO_RO_SI2).
*--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_P2RO_RO_SI INDEX 1 INTO DATA(WA_P2RO_RO_SI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RO_RO_SI ASSIGNING <P2RO_RO_SI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RO_RO_SI>-MANDT = 1.
<P2RO_RO_SI>-DCT_PERNR = 1.
<P2RO_RO_SI>-DCT_SEQNR = 1.
<P2RO_RO_SI>-DCT_ROWID = 1.
<P2RO_RO_SI>-CNTR1 = 1.

ENDLOOP.

LOOP AT IT_P2RO_RO_SI INTO WA_P2RO_RO_SI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RO_RO_SI-BEGDA, sy-vline,
  WA_P2RO_RO_SI-ENDDA, sy-vline,
  WA_P2RO_RO_SI-REDET, sy-vline,
  WA_P2RO_RO_SI-REDEA, sy-vline,
  WA_P2RO_RO_SI-TAXOF, sy-vline,
  WA_P2RO_RO_SI-CONT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RO_RO_SI 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_P2RO_RO_SI 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_P2RO_RO_SI INTO WA_P2RO_RO_SI.


*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 HRROA, internal->external for field PARTI
CALL FUNCTION 'CONVERSION_EXIT_HRROA_OUTPUT'
  EXPORTING
    input =                      WA_P2RO_RO_SI-PARTI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2RO_RO_SI-PARTI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HRROA, internal->external for field RETIR
CALL FUNCTION 'CONVERSION_EXIT_HRROA_OUTPUT'
  EXPORTING
    input =                      WA_P2RO_RO_SI-RETIR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2RO_RO_SI-RETIR.
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_P2RO_RO_SI_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
CNTR1 TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
REDET TYPE STRING,
REDEA TYPE STRING,
TAXOF TYPE STRING,
CONT1 TYPE STRING,
NHOUR TYPE STRING,
STP1E TYPE STRING,
STP1R TYPE STRING,
CONT2 TYPE STRING,
PARTI TYPE STRING,
RETIR TYPE STRING,
WORKC TYPE STRING,
STP2E TYPE STRING,
STP2R TYPE STRING,
NORMA TYPE STRING,
CONT3 TYPE STRING,
HEHID TYPE STRING,
STP3E TYPE STRING,
STP3R TYPE STRING,
TFREE TYPE STRING,
TCALC TYPE STRING,
STPDR TYPE STRING,
STPER TYPE STRING,
STPFR TYPE STRING,
STPGR TYPE STRING,
STPHR TYPE STRING,
STPIR TYPE STRING,
STPJR TYPE STRING,
THAND TYPE STRING,
TPROG TYPE STRING,
TYITA TYPE STRING,
STTFP TYPE STRING,
TYRER TYPE STRING,
CONDT TYPE STRING,
TAXST TYPE STRING,
STPKR TYPE STRING,
TRESE TYPE STRING,
STPLR TYPE STRING,
MBS2R TYPE STRING,
MBS3R TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RO_RO_SI_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_P2RO_RO_SI_STR-MANDT sy-vline 
WA_P2RO_RO_SI_STR-DCT_PERNR sy-vline 
WA_P2RO_RO_SI_STR-DCT_SEQNR sy-vline 
WA_P2RO_RO_SI_STR-DCT_ROWID sy-vline 
WA_P2RO_RO_SI_STR-CNTR1 sy-vline 
WA_P2RO_RO_SI_STR-BEGDA sy-vline 
WA_P2RO_RO_SI_STR-ENDDA sy-vline 
WA_P2RO_RO_SI_STR-REDET sy-vline 
WA_P2RO_RO_SI_STR-REDEA sy-vline 
WA_P2RO_RO_SI_STR-TAXOF sy-vline 
WA_P2RO_RO_SI_STR-CONT1 sy-vline 
WA_P2RO_RO_SI_STR-NHOUR sy-vline 
WA_P2RO_RO_SI_STR-STP1E sy-vline 
WA_P2RO_RO_SI_STR-STP1R sy-vline 
WA_P2RO_RO_SI_STR-CONT2 sy-vline 
WA_P2RO_RO_SI_STR-PARTI sy-vline 
WA_P2RO_RO_SI_STR-RETIR sy-vline 
WA_P2RO_RO_SI_STR-WORKC sy-vline 
WA_P2RO_RO_SI_STR-STP2E sy-vline 
WA_P2RO_RO_SI_STR-STP2R sy-vline 
WA_P2RO_RO_SI_STR-NORMA sy-vline 
WA_P2RO_RO_SI_STR-CONT3 sy-vline 
WA_P2RO_RO_SI_STR-HEHID sy-vline 
WA_P2RO_RO_SI_STR-STP3E sy-vline 
WA_P2RO_RO_SI_STR-STP3R sy-vline 
WA_P2RO_RO_SI_STR-TFREE sy-vline 
WA_P2RO_RO_SI_STR-TCALC sy-vline 
WA_P2RO_RO_SI_STR-STPDR sy-vline 
WA_P2RO_RO_SI_STR-STPER sy-vline 
WA_P2RO_RO_SI_STR-STPFR sy-vline 
WA_P2RO_RO_SI_STR-STPGR sy-vline 
WA_P2RO_RO_SI_STR-STPHR sy-vline 
WA_P2RO_RO_SI_STR-STPIR sy-vline 
WA_P2RO_RO_SI_STR-STPJR sy-vline 
WA_P2RO_RO_SI_STR-THAND sy-vline 
WA_P2RO_RO_SI_STR-TPROG sy-vline 
WA_P2RO_RO_SI_STR-TYITA sy-vline 
WA_P2RO_RO_SI_STR-STTFP sy-vline 
WA_P2RO_RO_SI_STR-TYRER sy-vline 
WA_P2RO_RO_SI_STR-CONDT sy-vline 
WA_P2RO_RO_SI_STR-TAXST sy-vline 
WA_P2RO_RO_SI_STR-STPKR sy-vline 
WA_P2RO_RO_SI_STR-TRESE sy-vline 
WA_P2RO_RO_SI_STR-STPLR sy-vline 
WA_P2RO_RO_SI_STR-MBS2R sy-vline 
WA_P2RO_RO_SI_STR-MBS3R sy-vline      INTO ld_text SEPARATED BY SPACE.

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