ABAP Select data from SAP table P2RX_RT_EVAL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RX_RT_EVAL 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 P2RX_RT_EVAL. 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 P2RX_RT_EVAL 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_P2RX_RT_EVAL TYPE STANDARD TABLE OF P2RX_RT_EVAL,
      WA_P2RX_RT_EVAL TYPE P2RX_RT_EVAL,
      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: <P2RX_RT_EVAL> TYPE P2RX_RT_EVAL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RX_RT_EVAL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RX_RT_EVAL
  INTO TABLE IT_P2RX_RT_EVAL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RX_RT_EVAL
*  INTO TABLE @DATA(IT_P2RX_RT_EVAL2).
*--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_P2RX_RT_EVAL INDEX 1 INTO DATA(WA_P2RX_RT_EVAL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RX_RT_EVAL ASSIGNING <P2RX_RT_EVAL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RX_RT_EVAL>-MANDT = 1.
<P2RX_RT_EVAL>-DCT_PERNR = 1.
<P2RX_RT_EVAL>-DCT_SEQNR = 1.
<P2RX_RT_EVAL>-ABART = 1.
<P2RX_RT_EVAL>-LGART = 1.

ENDLOOP.

LOOP AT IT_P2RX_RT_EVAL INTO WA_P2RX_RT_EVAL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RX_RT_EVAL-APZNR, sy-vline,
  WA_P2RX_RT_EVAL-ZEINH, sy-vline,
  WA_P2RX_RT_EVAL-SBETPE, sy-vline,
  WA_P2RX_RT_EVAL-MAX_BETPE, sy-vline,
  WA_P2RX_RT_EVAL-MIN_BETPE, sy-vline,
  WA_P2RX_RT_EVAL-SANZHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RX_RT_EVAL 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_P2RX_RT_EVAL 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_P2RX_RT_EVAL INTO WA_P2RX_RT_EVAL.


*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 ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P2RX_RT_EVAL-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P2RX_RT_EVAL-KOSTL.
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_P2RX_RT_EVAL_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
ABART TYPE STRING,
LGART TYPE STRING,
APZNR TYPE STRING,
ZEINH TYPE STRING,
SBETPE TYPE STRING,
MAX_BETPE TYPE STRING,
MIN_BETPE TYPE STRING,
SANZHL TYPE STRING,
SBETRG TYPE STRING,
RBETRG TYPE STRING,
RANZHL TYPE STRING,
RTE_CURR TYPE STRING,
AMT_CURR TYPE STRING,
IABKRS TYPE STRING,
INPER TYPE STRING,
IPEND TYPE STRING,
INPTY TYPE STRING,
INPID TYPE STRING,
SRTZA TYPE STRING,
ABKRS TYPE STRING,
FPPER TYPE STRING,
FPEND TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
RT_APZNR TYPE STRING,
WPBP_APZNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
STAT1 TYPE STRING,
STAT2 TYPE STRING,
STAT3 TYPE STRING,
AKTIVJN TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
KOSTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
WPBP_ABART TYPE STRING,
PLANS TYPE STRING,
GSBER TYPE STRING,
VDSK1 TYPE STRING,
ANSVH TYPE STRING,
ORGEH TYPE STRING,
STELL TYPE STRING,
BSGRD TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
KOSTVJN TYPE STRING,
GEBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RX_RT_EVAL_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_P2RX_RT_EVAL_STR-MANDT sy-vline 
WA_P2RX_RT_EVAL_STR-DCT_PERNR sy-vline 
WA_P2RX_RT_EVAL_STR-DCT_SEQNR sy-vline 
WA_P2RX_RT_EVAL_STR-ABART sy-vline 
WA_P2RX_RT_EVAL_STR-LGART sy-vline 
WA_P2RX_RT_EVAL_STR-APZNR sy-vline 
WA_P2RX_RT_EVAL_STR-ZEINH sy-vline 
WA_P2RX_RT_EVAL_STR-SBETPE sy-vline 
WA_P2RX_RT_EVAL_STR-MAX_BETPE sy-vline 
WA_P2RX_RT_EVAL_STR-MIN_BETPE sy-vline 
WA_P2RX_RT_EVAL_STR-SANZHL sy-vline 
WA_P2RX_RT_EVAL_STR-SBETRG sy-vline 
WA_P2RX_RT_EVAL_STR-RBETRG sy-vline 
WA_P2RX_RT_EVAL_STR-RANZHL sy-vline 
WA_P2RX_RT_EVAL_STR-RTE_CURR sy-vline 
WA_P2RX_RT_EVAL_STR-AMT_CURR sy-vline 
WA_P2RX_RT_EVAL_STR-IABKRS sy-vline 
WA_P2RX_RT_EVAL_STR-INPER sy-vline 
WA_P2RX_RT_EVAL_STR-IPEND sy-vline 
WA_P2RX_RT_EVAL_STR-INPTY sy-vline 
WA_P2RX_RT_EVAL_STR-INPID sy-vline 
WA_P2RX_RT_EVAL_STR-SRTZA sy-vline 
WA_P2RX_RT_EVAL_STR-ABKRS sy-vline 
WA_P2RX_RT_EVAL_STR-FPPER sy-vline 
WA_P2RX_RT_EVAL_STR-FPEND sy-vline 
WA_P2RX_RT_EVAL_STR-PAYTY sy-vline 
WA_P2RX_RT_EVAL_STR-PAYID sy-vline 
WA_P2RX_RT_EVAL_STR-RT_APZNR sy-vline 
WA_P2RX_RT_EVAL_STR-WPBP_APZNR sy-vline 
WA_P2RX_RT_EVAL_STR-BEGDA sy-vline 
WA_P2RX_RT_EVAL_STR-ENDDA sy-vline 
WA_P2RX_RT_EVAL_STR-MASSN sy-vline 
WA_P2RX_RT_EVAL_STR-MASSG sy-vline 
WA_P2RX_RT_EVAL_STR-STAT1 sy-vline 
WA_P2RX_RT_EVAL_STR-STAT2 sy-vline 
WA_P2RX_RT_EVAL_STR-STAT3 sy-vline 
WA_P2RX_RT_EVAL_STR-AKTIVJN sy-vline 
WA_P2RX_RT_EVAL_STR-BUKRS sy-vline 
WA_P2RX_RT_EVAL_STR-WERKS sy-vline 
WA_P2RX_RT_EVAL_STR-BTRTL sy-vline 
WA_P2RX_RT_EVAL_STR-KOSTL sy-vline 
WA_P2RX_RT_EVAL_STR-PERSG sy-vline 
WA_P2RX_RT_EVAL_STR-PERSK sy-vline 
WA_P2RX_RT_EVAL_STR-WPBP_ABART sy-vline 
WA_P2RX_RT_EVAL_STR-PLANS sy-vline 
WA_P2RX_RT_EVAL_STR-GSBER sy-vline 
WA_P2RX_RT_EVAL_STR-VDSK1 sy-vline 
WA_P2RX_RT_EVAL_STR-ANSVH sy-vline 
WA_P2RX_RT_EVAL_STR-ORGEH sy-vline 
WA_P2RX_RT_EVAL_STR-STELL sy-vline 
WA_P2RX_RT_EVAL_STR-BSGRD sy-vline 
WA_P2RX_RT_EVAL_STR-TRFAR sy-vline 
WA_P2RX_RT_EVAL_STR-TRFGB sy-vline 
WA_P2RX_RT_EVAL_STR-TRFGR sy-vline 
WA_P2RX_RT_EVAL_STR-TRFST sy-vline 
WA_P2RX_RT_EVAL_STR-KOSTVJN sy-vline 
WA_P2RX_RT_EVAL_STR-GEBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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