ABAP Select data from SAP table PC2C0 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2C0 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 PC2C0. 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 PC2C0 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_PC2C0 TYPE STANDARD TABLE OF PC2C0,
      WA_PC2C0 TYPE PC2C0,
      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: <PC2C0> TYPE PC2C0.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2C0.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2C0
  INTO TABLE IT_PC2C0.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2C0
*  INTO TABLE @DATA(IT_PC2C02).
*--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_PC2C0 INDEX 1 INTO DATA(WA_PC2C02).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2C0 ASSIGNING <PC2C0>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2C0>-REGNO = 1.
<PC2C0>-BEGDA = 1.
<PC2C0>-ENDDA = 1.
<PC2C0>-RGNDA = 1.
<PC2C0>-FACTO = 1.

ENDLOOP.

LOOP AT IT_PC2C0 INTO WA_PC2C0.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2C0-MODEL, sy-vline,
  WA_PC2C0-TTYPE, sy-vline,
  WA_PC2C0-DPLAN, sy-vline,
  WA_PC2C0-FTEXT, sy-vline,
  WA_PC2C0-MTEXT, sy-vline,
  WA_PC2C0-CO2EM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2C0 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_PC2C0 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_PC2C0 INTO WA_PC2C0.


*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 TAXYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PC2C0-TAXYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC2C0-TAXYR.
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_PC2C0_STR, 
REGNO TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
RGNDA TYPE STRING,
FACTO TYPE STRING,
MODEL TYPE STRING,
TTYPE TYPE STRING,
DPLAN TYPE STRING,
FTEXT TYPE STRING,
MTEXT TYPE STRING,
CO2EM TYPE STRING,
EGTYP TYPE STRING,
CUBIC TYPE STRING,
LISTP TYPE STRING,
ACCSS TYPE STRING,
ADDAC TYPE STRING,
ONEPD TYPE STRING,
REGPD TYPE STRING,
AVALD TYPE STRING,
INCFL TYPE STRING,
FUELR TYPE STRING,
TXBEN TYPE STRING,
TXB1A TYPE STRING,
FSCHG TYPE STRING,
FSC1A TYPE STRING,
TXPCT TYPE STRING,
NIPCT TYPE STRING,
AVFSC TYPE STRING,
CVPSH TYPE STRING,
CVFSH TYPE STRING,
CVFSP TYPE STRING,
VAN_EMISSION TYPE STRING,
YTXBN TYPE STRING,
YTX1A TYPE STRING,
YFSCH TYPE STRING,
YFS1A TYPE STRING,
TAXYR TYPE STRING,
PAPER TYPE STRING,
PAYDT TYPE STRING,
YREGP TYPE STRING,
FUTYP TYPE STRING,
AMEND TYPE STRING,
AVBEG TYPE STRING,
AVEND TYPE STRING,
FLBEG TYPE STRING,
FLCSH TYPE STRING,
FLEND TYPE STRING,
CSHEQ TYPE STRING,
RPFPS TYPE STRING,
PYBIK TYPE STRING,
SUBTP TYPE STRING,
SLSAC TYPE STRING,
MCSEQ TYPE STRING,
CCARP TYPE STRING,
FSLSC TYPE STRING,
MFLCH TYPE STRING,
EMVAZ TYPE STRING,
NOXVL TYPE STRING,
TY_BEGDA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2C0_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_PC2C0_STR-REGNO sy-vline 
WA_PC2C0_STR-BEGDA sy-vline 
WA_PC2C0_STR-ENDDA sy-vline 
WA_PC2C0_STR-RGNDA sy-vline 
WA_PC2C0_STR-FACTO sy-vline 
WA_PC2C0_STR-MODEL sy-vline 
WA_PC2C0_STR-TTYPE sy-vline 
WA_PC2C0_STR-DPLAN sy-vline 
WA_PC2C0_STR-FTEXT sy-vline 
WA_PC2C0_STR-MTEXT sy-vline 
WA_PC2C0_STR-CO2EM sy-vline 
WA_PC2C0_STR-EGTYP sy-vline 
WA_PC2C0_STR-CUBIC sy-vline 
WA_PC2C0_STR-LISTP sy-vline 
WA_PC2C0_STR-ACCSS sy-vline 
WA_PC2C0_STR-ADDAC sy-vline 
WA_PC2C0_STR-ONEPD sy-vline 
WA_PC2C0_STR-REGPD sy-vline 
WA_PC2C0_STR-AVALD sy-vline 
WA_PC2C0_STR-INCFL sy-vline 
WA_PC2C0_STR-FUELR sy-vline 
WA_PC2C0_STR-TXBEN sy-vline 
WA_PC2C0_STR-TXB1A sy-vline 
WA_PC2C0_STR-FSCHG sy-vline 
WA_PC2C0_STR-FSC1A sy-vline 
WA_PC2C0_STR-TXPCT sy-vline 
WA_PC2C0_STR-NIPCT sy-vline 
WA_PC2C0_STR-AVFSC sy-vline 
WA_PC2C0_STR-CVPSH sy-vline 
WA_PC2C0_STR-CVFSH sy-vline 
WA_PC2C0_STR-CVFSP sy-vline 
WA_PC2C0_STR-VAN_EMISSION sy-vline 
WA_PC2C0_STR-YTXBN sy-vline 
WA_PC2C0_STR-YTX1A sy-vline 
WA_PC2C0_STR-YFSCH sy-vline 
WA_PC2C0_STR-YFS1A sy-vline 
WA_PC2C0_STR-TAXYR sy-vline 
WA_PC2C0_STR-PAPER sy-vline 
WA_PC2C0_STR-PAYDT sy-vline 
WA_PC2C0_STR-YREGP sy-vline 
WA_PC2C0_STR-FUTYP sy-vline 
WA_PC2C0_STR-AMEND sy-vline 
WA_PC2C0_STR-AVBEG sy-vline 
WA_PC2C0_STR-AVEND sy-vline 
WA_PC2C0_STR-FLBEG sy-vline 
WA_PC2C0_STR-FLCSH sy-vline 
WA_PC2C0_STR-FLEND sy-vline 
WA_PC2C0_STR-CSHEQ sy-vline 
WA_PC2C0_STR-RPFPS sy-vline 
WA_PC2C0_STR-PYBIK sy-vline 
WA_PC2C0_STR-SUBTP sy-vline 
WA_PC2C0_STR-SLSAC sy-vline 
WA_PC2C0_STR-MCSEQ sy-vline 
WA_PC2C0_STR-CCARP sy-vline 
WA_PC2C0_STR-FSLSC sy-vline 
WA_PC2C0_STR-MFLCH sy-vline 
WA_PC2C0_STR-EMVAZ sy-vline 
WA_PC2C0_STR-NOXVL sy-vline 
WA_PC2C0_STR-TY_BEGDA sy-vline      INTO ld_text SEPARATED BY SPACE.

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