ABAP Select data from SAP table PC2PF into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2PF 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 PC2PF. 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 PC2PF 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_PC2PF TYPE STANDARD TABLE OF PC2PF,
      WA_PC2PF TYPE PC2PF,
      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: <PC2PF> TYPE PC2PF.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2PF.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2PF
  INTO TABLE IT_PC2PF.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2PF
*  INTO TABLE @DATA(IT_PC2PF2).
*--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_PC2PF INDEX 1 INTO DATA(WA_PC2PF2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2PF ASSIGNING <PC2PF>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2PF>-VAGRP = 1.
<PC2PF>-ALLTY = 1.
<PC2PF>-REGTY = 1.
<PC2PF>-TERMX = 1.
<PC2PF>-FIXCO = 1.

ENDLOOP.

LOOP AT IT_PC2PF INTO WA_PC2PF.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2PF-VARCO, sy-vline,
  WA_PC2PF-PAMNT, sy-vline,
  WA_PC2PF-CPAMT, sy-vline,
  WA_PC2PF-PDAYS, sy-vline,
  WA_PC2PF-CPDAY, sy-vline,
  WA_PC2PF-EAMNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2PF 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_PC2PF 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_PC2PF INTO WA_PC2PF.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PC2PF_STR, 
VAGRP TYPE STRING,
ALLTY TYPE STRING,
REGTY TYPE STRING,
TERMX TYPE STRING,
FIXCO TYPE STRING,
VARCO TYPE STRING,
PAMNT TYPE STRING,
CPAMT TYPE STRING,
PDAYS TYPE STRING,
CPDAY TYPE STRING,
EAMNT TYPE STRING,
CEAMT TYPE STRING,
VDAYS TYPE STRING,
CVDAY TYPE STRING,
ESTAM TYPE STRING,
AMT_CURR TYPE STRING,
NQUOT TYPE STRING,
NLDAY TYPE STRING,
TQUOT TYPE STRING,
TLDAY TYPE STRING,
TUNIT TYPE STRING,
PAYFL TYPE STRING,
CPAYF TYPE STRING,
ADJFL TYPE STRING,
TERFL TYPE STRING,
AWART TYPE STRING,
OBEGD TYPE STRING,
OENDD TYPE STRING,
GWTYP TYPE STRING,
GAPZN TYPE STRING,
GLDAY TYPE STRING,
GZEIN TYPE STRING,
CLAMT TYPE STRING,
CLDAY TYPE STRING,
CDURP TYPE STRING,
EDIFF TYPE STRING,
GENER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2PF_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_PC2PF_STR-VAGRP sy-vline 
WA_PC2PF_STR-ALLTY sy-vline 
WA_PC2PF_STR-REGTY sy-vline 
WA_PC2PF_STR-TERMX sy-vline 
WA_PC2PF_STR-FIXCO sy-vline 
WA_PC2PF_STR-VARCO sy-vline 
WA_PC2PF_STR-PAMNT sy-vline 
WA_PC2PF_STR-CPAMT sy-vline 
WA_PC2PF_STR-PDAYS sy-vline 
WA_PC2PF_STR-CPDAY sy-vline 
WA_PC2PF_STR-EAMNT sy-vline 
WA_PC2PF_STR-CEAMT sy-vline 
WA_PC2PF_STR-VDAYS sy-vline 
WA_PC2PF_STR-CVDAY sy-vline 
WA_PC2PF_STR-ESTAM sy-vline 
WA_PC2PF_STR-AMT_CURR sy-vline 
WA_PC2PF_STR-NQUOT sy-vline 
WA_PC2PF_STR-NLDAY sy-vline 
WA_PC2PF_STR-TQUOT sy-vline 
WA_PC2PF_STR-TLDAY sy-vline 
WA_PC2PF_STR-TUNIT sy-vline 
WA_PC2PF_STR-PAYFL sy-vline 
WA_PC2PF_STR-CPAYF sy-vline 
WA_PC2PF_STR-ADJFL sy-vline 
WA_PC2PF_STR-TERFL sy-vline 
WA_PC2PF_STR-AWART sy-vline 
WA_PC2PF_STR-OBEGD sy-vline 
WA_PC2PF_STR-OENDD sy-vline 
WA_PC2PF_STR-GWTYP sy-vline 
WA_PC2PF_STR-GAPZN sy-vline 
WA_PC2PF_STR-GLDAY sy-vline 
WA_PC2PF_STR-GZEIN sy-vline 
WA_PC2PF_STR-CLAMT sy-vline 
WA_PC2PF_STR-CLDAY sy-vline 
WA_PC2PF_STR-CDURP sy-vline 
WA_PC2PF_STR-EDIFF sy-vline 
WA_PC2PF_STR-GENER sy-vline      INTO ld_text SEPARATED BY SPACE.

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