ABAP Select data from SAP table PC2CT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2CT 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 PC2CT. 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 PC2CT 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_PC2CT TYPE STANDARD TABLE OF PC2CT,
      WA_PC2CT TYPE PC2CT,
      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: <PC2CT> TYPE PC2CT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2CT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2CT
  INTO TABLE IT_PC2CT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2CT
*  INTO TABLE @DATA(IT_PC2CT2).
*--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_PC2CT INDEX 1 INTO DATA(WA_PC2CT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2CT ASSIGNING <PC2CT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2CT>-NUMCT = 1.
<PC2CT>-GRCT1 = 1.
<PC2CT>-GRCT2 = 1.
<PC2CT>-UIDCT = 1.
<PC2CT>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_PC2CT INTO WA_PC2CT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2CT-ENDDA, sy-vline,
  WA_PC2CT-AKTIVJN, sy-vline,
  WA_PC2CT-SPKEY, sy-vline,
  WA_PC2CT-WERKS, sy-vline,
  WA_PC2CT-BTRTL, sy-vline,
  WA_PC2CT-ANSVH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2CT 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_PC2CT 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_PC2CT INTO WA_PC2CT.


*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_PC2CT_STR, 
NUMCT TYPE STRING,
GRCT1 TYPE STRING,
GRCT2 TYPE STRING,
UIDCT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
AKTIVJN TYPE STRING,
SPKEY TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
ANSVH TYPE STRING,
CTTYP TYPE STRING,
MODAL TYPE STRING,
CODEB TYPE STRING,
COFIN TYPE STRING,
COSIR TYPE STRING,
CONUM TYPE STRING,
COSTA TYPE STRING,
COAGI TYPE STRING,
CONAT TYPE STRING,
COINT TYPE STRING,
COUMQ TYPE STRING,
COQTC TYPE STRING,
COMEX TYPE STRING,
COSAL TYPE STRING,
WAERS TYPE STRING,
COALS TYPE STRING,
COCOL TYPE STRING,
COASI TYPE STRING,
COMRE TYPE STRING,
COTDF TYPE STRING,
COSTE TYPE STRING,
COCSP TYPE STRING,
COPCS TYPE STRING,
COQTR TYPE STRING,
COCCP TYPE STRING,
COROB TYPE STRING,
CORIS TYPE STRING,
COEXC TYPE STRING,
COEST TYPE STRING,
COASC TYPE STRING,
CONEP TYPE STRING,
COGAC TYPE STRING,
CODAD TYPE STRING,
CODDE TYPE STRING,
CODEC TYPE STRING,
CONCG TYPE STRING,
COEFF TYPE STRING,
COFIP TYPE STRING,
CORSA TYPE STRING,
COSCA TYPE STRING,
COSTP TYPE STRING,
REALB TYPE STRING,
COTAT TYPE STRING,
COCCL TYPE STRING,
PPERI TYPE STRING,
ABARE TYPE STRING,
PASEX TYPE STRING,
CDSEC TYPE STRING,
COFPP TYPE STRING,
CONPO TYPE STRING,
COQTT TYPE STRING,
COTTP TYPE STRING,
COCCS TYPE STRING,
COCIB TYPE STRING,
COCIM TYPE STRING,
CONBI TYPE STRING,
COIBO TYPE STRING,
COIES TYPE STRING,
COIBG TYPE STRING,
COIBP TYPE STRING,
COIBS TYPE STRING,
COMTC TYPE STRING,
ABARD TYPE STRING,
TDETA TYPE STRING,
COTSA TYPE STRING,
CONRX TYPE STRING,
COECH TYPE STRING,
COCOH TYPE STRING,
COGEN TYPE STRING,
COSBO TYPE STRING,
COCDP TYPE STRING,
CODEI TYPE STRING,
COCCF TYPE STRING,
COCRM TYPE STRING,
CORVI TYPE STRING,
COIEM TYPE STRING,
COIEG TYPE STRING,
COTAP TYPE STRING,
COXXX TYPE STRING,
PACRE TYPE STRING,
COEMM TYPE STRING,
COERM TYPE STRING,
CORAT TYPE STRING,
COPCC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2CT_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_PC2CT_STR-NUMCT sy-vline 
WA_PC2CT_STR-GRCT1 sy-vline 
WA_PC2CT_STR-GRCT2 sy-vline 
WA_PC2CT_STR-UIDCT sy-vline 
WA_PC2CT_STR-BEGDA sy-vline 
WA_PC2CT_STR-ENDDA sy-vline 
WA_PC2CT_STR-AKTIVJN sy-vline 
WA_PC2CT_STR-SPKEY sy-vline 
WA_PC2CT_STR-WERKS sy-vline 
WA_PC2CT_STR-BTRTL sy-vline 
WA_PC2CT_STR-ANSVH sy-vline 
WA_PC2CT_STR-CTTYP sy-vline 
WA_PC2CT_STR-MODAL sy-vline 
WA_PC2CT_STR-CODEB sy-vline 
WA_PC2CT_STR-COFIN sy-vline 
WA_PC2CT_STR-COSIR sy-vline 
WA_PC2CT_STR-CONUM sy-vline 
WA_PC2CT_STR-COSTA sy-vline 
WA_PC2CT_STR-COAGI sy-vline 
WA_PC2CT_STR-CONAT sy-vline 
WA_PC2CT_STR-COINT sy-vline 
WA_PC2CT_STR-COUMQ sy-vline 
WA_PC2CT_STR-COQTC sy-vline 
WA_PC2CT_STR-COMEX sy-vline 
WA_PC2CT_STR-COSAL sy-vline 
WA_PC2CT_STR-WAERS sy-vline 
WA_PC2CT_STR-COALS sy-vline 
WA_PC2CT_STR-COCOL sy-vline 
WA_PC2CT_STR-COASI sy-vline 
WA_PC2CT_STR-COMRE sy-vline 
WA_PC2CT_STR-COTDF sy-vline 
WA_PC2CT_STR-COSTE sy-vline 
WA_PC2CT_STR-COCSP sy-vline 
WA_PC2CT_STR-COPCS sy-vline 
WA_PC2CT_STR-COQTR sy-vline 
WA_PC2CT_STR-COCCP sy-vline 
WA_PC2CT_STR-COROB sy-vline 
WA_PC2CT_STR-CORIS sy-vline 
WA_PC2CT_STR-COEXC sy-vline 
WA_PC2CT_STR-COEST sy-vline 
WA_PC2CT_STR-COASC sy-vline 
WA_PC2CT_STR-CONEP sy-vline 
WA_PC2CT_STR-COGAC sy-vline 
WA_PC2CT_STR-CODAD sy-vline 
WA_PC2CT_STR-CODDE sy-vline 
WA_PC2CT_STR-CODEC sy-vline 
WA_PC2CT_STR-CONCG sy-vline 
WA_PC2CT_STR-COEFF sy-vline 
WA_PC2CT_STR-COFIP sy-vline 
WA_PC2CT_STR-CORSA sy-vline 
WA_PC2CT_STR-COSCA sy-vline 
WA_PC2CT_STR-COSTP sy-vline 
WA_PC2CT_STR-REALB sy-vline 
WA_PC2CT_STR-COTAT sy-vline 
WA_PC2CT_STR-COCCL sy-vline 
WA_PC2CT_STR-PPERI sy-vline 
WA_PC2CT_STR-ABARE sy-vline 
WA_PC2CT_STR-PASEX sy-vline 
WA_PC2CT_STR-CDSEC sy-vline 
WA_PC2CT_STR-COFPP sy-vline 
WA_PC2CT_STR-CONPO sy-vline 
WA_PC2CT_STR-COQTT sy-vline 
WA_PC2CT_STR-COTTP sy-vline 
WA_PC2CT_STR-COCCS sy-vline 
WA_PC2CT_STR-COCIB sy-vline 
WA_PC2CT_STR-COCIM sy-vline 
WA_PC2CT_STR-CONBI sy-vline 
WA_PC2CT_STR-COIBO sy-vline 
WA_PC2CT_STR-COIES sy-vline 
WA_PC2CT_STR-COIBG sy-vline 
WA_PC2CT_STR-COIBP sy-vline 
WA_PC2CT_STR-COIBS sy-vline 
WA_PC2CT_STR-COMTC sy-vline 
WA_PC2CT_STR-ABARD sy-vline 
WA_PC2CT_STR-TDETA sy-vline 
WA_PC2CT_STR-COTSA sy-vline 
WA_PC2CT_STR-CONRX sy-vline 
WA_PC2CT_STR-COECH sy-vline 
WA_PC2CT_STR-COCOH sy-vline 
WA_PC2CT_STR-COGEN sy-vline 
WA_PC2CT_STR-COSBO sy-vline 
WA_PC2CT_STR-COCDP sy-vline 
WA_PC2CT_STR-CODEI sy-vline 
WA_PC2CT_STR-COCCF sy-vline 
WA_PC2CT_STR-COCRM sy-vline 
WA_PC2CT_STR-CORVI sy-vline 
WA_PC2CT_STR-COIEM sy-vline 
WA_PC2CT_STR-COIEG sy-vline 
WA_PC2CT_STR-COTAP sy-vline 
WA_PC2CT_STR-COXXX sy-vline 
WA_PC2CT_STR-PACRE sy-vline 
WA_PC2CT_STR-COEMM sy-vline 
WA_PC2CT_STR-COERM sy-vline 
WA_PC2CT_STR-CORAT sy-vline 
WA_PC2CT_STR-COPCC sy-vline      INTO ld_text SEPARATED BY SPACE.

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