ABAP Select data from SAP table PC23P_R into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC23P_R 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 PC23P_R. 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 PC23P_R 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_PC23P_R TYPE STANDARD TABLE OF PC23P_R,
      WA_PC23P_R TYPE PC23P_R,
      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: <PC23P_R> TYPE PC23P_R.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC23P_R.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC23P_R
  INTO TABLE IT_PC23P_R.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC23P_R
*  INTO TABLE @DATA(IT_PC23P_R2).
*--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_PC23P_R INDEX 1 INTO DATA(WA_PC23P_R2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC23P_R ASSIGNING <PC23P_R>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC23P_R>-INFTY = 1.
<PC23P_R>-SUBTY = 1.
<PC23P_R>-OBJPS = 1.
<PC23P_R>-SPRPS = 1.
<PC23P_R>-ENDDA = 1.

ENDLOOP.

LOOP AT IT_PC23P_R INTO WA_PC23P_R.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC23P_R-BEGDA, sy-vline,
  WA_PC23P_R-SEQNR, sy-vline,
  WA_PC23P_R-REFEX, sy-vline,
  WA_PC23P_R-ORDEX, sy-vline,
  WA_PC23P_R-ITBLD, sy-vline,
  WA_PC23P_R-PREAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC23P_R 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_PC23P_R 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_PC23P_R INTO WA_PC23P_R.


*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 PABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PC23P_R-PABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC23P_R-PABRJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCSY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PC23P_R-DOCSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC23P_R-DOCSY.
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_PC23P_R_STR, 
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
GRPVL TYPE STRING,
LGART TYPE STRING,
ADSUM TYPE STRING,
OPKEN TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
ANZHL TYPE STRING,
ZEINH TYPE STRING,
INDBW TYPE STRING,
ZUORD TYPE STRING,
ESTDT TYPE STRING,
PABRJ TYPE STRING,
PABRP TYPE STRING,
UWDAT TYPE STRING,
ZDATE TYPE STRING,
ZFPER TYPE STRING,
ZANZL TYPE STRING,
ZEINZ TYPE STRING,
MODEL TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
VTKEN TYPE STRING,
STDAZ TYPE STRING,
BWGRL TYPE STRING,
AUFKZ TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
PRAKN TYPE STRING,
PRAKZ TYPE STRING,
OTYPE TYPE STRING,
PLANS TYPE STRING,
VERSL TYPE STRING,
WTART TYPE STRING,
PAYTY TYPE STRING,
PAYID TYPE STRING,
OCRSN TYPE STRING,
QCTYP TYPE STRING,
STYPE TYPE STRING,
QTYPE TYPE STRING,
SRULE TYPE STRING,
NUMBR TYPE STRING,
AMONT TYPE STRING,
WGTYP TYPE STRING,
QUONR TYPE STRING,
DOCSY TYPE STRING,
DOCNR TYPE STRING,
NOPAY TYPE STRING,
DATUM TYPE STRING,
ALZNR TYPE STRING,
C1ZNR TYPE STRING,
ABZNR TYPE STRING,
IFTYP TYPE STRING,
PRZNR TYPE STRING,
START_BEF_ZERO TYPE STRING,
APZNR TYPE STRING,
CNTR1 TYPE STRING,
CNTR2 TYPE STRING,
CNTR3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC23P_R_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_PC23P_R_STR-INFTY sy-vline 
WA_PC23P_R_STR-SUBTY sy-vline 
WA_PC23P_R_STR-OBJPS sy-vline 
WA_PC23P_R_STR-SPRPS sy-vline 
WA_PC23P_R_STR-ENDDA sy-vline 
WA_PC23P_R_STR-BEGDA sy-vline 
WA_PC23P_R_STR-SEQNR sy-vline 
WA_PC23P_R_STR-REFEX sy-vline 
WA_PC23P_R_STR-ORDEX sy-vline 
WA_PC23P_R_STR-ITBLD sy-vline 
WA_PC23P_R_STR-PREAS sy-vline 
WA_PC23P_R_STR-GRPVL sy-vline 
WA_PC23P_R_STR-LGART sy-vline 
WA_PC23P_R_STR-ADSUM sy-vline 
WA_PC23P_R_STR-OPKEN sy-vline 
WA_PC23P_R_STR-BETRG sy-vline 
WA_PC23P_R_STR-WAERS sy-vline 
WA_PC23P_R_STR-ANZHL sy-vline 
WA_PC23P_R_STR-ZEINH sy-vline 
WA_PC23P_R_STR-INDBW sy-vline 
WA_PC23P_R_STR-ZUORD sy-vline 
WA_PC23P_R_STR-ESTDT sy-vline 
WA_PC23P_R_STR-PABRJ sy-vline 
WA_PC23P_R_STR-PABRP sy-vline 
WA_PC23P_R_STR-UWDAT sy-vline 
WA_PC23P_R_STR-ZDATE sy-vline 
WA_PC23P_R_STR-ZFPER sy-vline 
WA_PC23P_R_STR-ZANZL sy-vline 
WA_PC23P_R_STR-ZEINZ sy-vline 
WA_PC23P_R_STR-MODEL sy-vline 
WA_PC23P_R_STR-BEGUZ sy-vline 
WA_PC23P_R_STR-ENDUZ sy-vline 
WA_PC23P_R_STR-VTKEN sy-vline 
WA_PC23P_R_STR-STDAZ sy-vline 
WA_PC23P_R_STR-BWGRL sy-vline 
WA_PC23P_R_STR-AUFKZ sy-vline 
WA_PC23P_R_STR-TRFGR sy-vline 
WA_PC23P_R_STR-TRFST sy-vline 
WA_PC23P_R_STR-PRAKN sy-vline 
WA_PC23P_R_STR-PRAKZ sy-vline 
WA_PC23P_R_STR-OTYPE sy-vline 
WA_PC23P_R_STR-PLANS sy-vline 
WA_PC23P_R_STR-VERSL sy-vline 
WA_PC23P_R_STR-WTART sy-vline 
WA_PC23P_R_STR-PAYTY sy-vline 
WA_PC23P_R_STR-PAYID sy-vline 
WA_PC23P_R_STR-OCRSN sy-vline 
WA_PC23P_R_STR-QCTYP sy-vline 
WA_PC23P_R_STR-STYPE sy-vline 
WA_PC23P_R_STR-QTYPE sy-vline 
WA_PC23P_R_STR-SRULE sy-vline 
WA_PC23P_R_STR-NUMBR sy-vline 
WA_PC23P_R_STR-AMONT sy-vline 
WA_PC23P_R_STR-WGTYP sy-vline 
WA_PC23P_R_STR-QUONR sy-vline 
WA_PC23P_R_STR-DOCSY sy-vline 
WA_PC23P_R_STR-DOCNR sy-vline 
WA_PC23P_R_STR-NOPAY sy-vline 
WA_PC23P_R_STR-DATUM sy-vline 
WA_PC23P_R_STR-ALZNR sy-vline 
WA_PC23P_R_STR-C1ZNR sy-vline 
WA_PC23P_R_STR-ABZNR sy-vline 
WA_PC23P_R_STR-IFTYP sy-vline 
WA_PC23P_R_STR-PRZNR sy-vline 
WA_PC23P_R_STR-START_BEF_ZERO sy-vline 
WA_PC23P_R_STR-APZNR sy-vline 
WA_PC23P_R_STR-CNTR1 sy-vline 
WA_PC23P_R_STR-CNTR2 sy-vline 
WA_PC23P_R_STR-CNTR3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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