ABAP Select data from SAP table PC2CO_PRO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2CO_PRO 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 PC2CO_PRO. 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 PC2CO_PRO 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_PC2CO_PRO TYPE STANDARD TABLE OF PC2CO_PRO,
      WA_PC2CO_PRO TYPE PC2CO_PRO,
      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: <PC2CO_PRO> TYPE PC2CO_PRO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2CO_PRO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2CO_PRO
  INTO TABLE IT_PC2CO_PRO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2CO_PRO
*  INTO TABLE @DATA(IT_PC2CO_PRO2).
*--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_PC2CO_PRO INDEX 1 INTO DATA(WA_PC2CO_PRO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2CO_PRO ASSIGNING <PC2CO_PRO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2CO_PRO>-TRPROV = 1.
<PC2CO_PRO>-VBASE = 1.
<PC2CO_PRO>-WORKD = 1.
<PC2CO_PRO>-NBALD = 1.
<PC2CO_PRO>-NBALV = 1.

ENDLOOP.

LOOP AT IT_PC2CO_PRO INTO WA_PC2CO_PRO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2CO_PRO-PBALD, sy-vline,
  WA_PC2CO_PRO-PBALV, sy-vline,
  WA_PC2CO_PRO-CAUSD, sy-vline,
  WA_PC2CO_PRO-CAUSV, sy-vline,
  WA_PC2CO_PRO-APAYD, sy-vline,
  WA_PC2CO_PRO-APAYV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2CO_PRO 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_PC2CO_PRO 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_PC2CO_PRO INTO WA_PC2CO_PRO.


*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_PC2CO_PRO_STR, 
TRPROV TYPE STRING,
VBASE TYPE STRING,
WORKD TYPE STRING,
NBALD TYPE STRING,
NBALV TYPE STRING,
PBALD TYPE STRING,
PBALV TYPE STRING,
CAUSD TYPE STRING,
CAUSV TYPE STRING,
APAYD TYPE STRING,
APAYV TYPE STRING,
CPAYD TYPE STRING,
CPAYV TYPE STRING,
PNPYD TYPE STRING,
PNPYV TYPE STRING,
VCSTD TYPE STRING,
VCSTV TYPE STRING,
VBASE_CURR TYPE STRING,
NBALV_CURR TYPE STRING,
PBALV_CURR TYPE STRING,
APAYV_CURR TYPE STRING,
PNPYV_CURR TYPE STRING,
VCSTV_CURR TYPE STRING,
CAUSV_CURR TYPE STRING,
CPAYV_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2CO_PRO_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_PC2CO_PRO_STR-TRPROV sy-vline 
WA_PC2CO_PRO_STR-VBASE sy-vline 
WA_PC2CO_PRO_STR-WORKD sy-vline 
WA_PC2CO_PRO_STR-NBALD sy-vline 
WA_PC2CO_PRO_STR-NBALV sy-vline 
WA_PC2CO_PRO_STR-PBALD sy-vline 
WA_PC2CO_PRO_STR-PBALV sy-vline 
WA_PC2CO_PRO_STR-CAUSD sy-vline 
WA_PC2CO_PRO_STR-CAUSV sy-vline 
WA_PC2CO_PRO_STR-APAYD sy-vline 
WA_PC2CO_PRO_STR-APAYV sy-vline 
WA_PC2CO_PRO_STR-CPAYD sy-vline 
WA_PC2CO_PRO_STR-CPAYV sy-vline 
WA_PC2CO_PRO_STR-PNPYD sy-vline 
WA_PC2CO_PRO_STR-PNPYV sy-vline 
WA_PC2CO_PRO_STR-VCSTD sy-vline 
WA_PC2CO_PRO_STR-VCSTV sy-vline 
WA_PC2CO_PRO_STR-VBASE_CURR sy-vline 
WA_PC2CO_PRO_STR-NBALV_CURR sy-vline 
WA_PC2CO_PRO_STR-PBALV_CURR sy-vline 
WA_PC2CO_PRO_STR-APAYV_CURR sy-vline 
WA_PC2CO_PRO_STR-PNPYV_CURR sy-vline 
WA_PC2CO_PRO_STR-VCSTV_CURR sy-vline 
WA_PC2CO_PRO_STR-CAUSV_CURR sy-vline 
WA_PC2CO_PRO_STR-CPAYV_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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