ABAP Select data from SAP table P2CO_COPRO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2CO_COPRO 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 P2CO_COPRO. 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 P2CO_COPRO 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_P2CO_COPRO TYPE STANDARD TABLE OF P2CO_COPRO,
      WA_P2CO_COPRO TYPE P2CO_COPRO,
      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: <P2CO_COPRO> TYPE P2CO_COPRO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2CO_COPRO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2CO_COPRO
  INTO TABLE IT_P2CO_COPRO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2CO_COPRO
*  INTO TABLE @DATA(IT_P2CO_COPRO2).
*--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_P2CO_COPRO INDEX 1 INTO DATA(WA_P2CO_COPRO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2CO_COPRO ASSIGNING <P2CO_COPRO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2CO_COPRO>-MANDT = 1.
<P2CO_COPRO>-DCT_PERNR = 1.
<P2CO_COPRO>-DCT_SEQNR = 1.
<P2CO_COPRO>-DCT_ROWID = 1.
<P2CO_COPRO>-TRPROV = 1.

ENDLOOP.

LOOP AT IT_P2CO_COPRO INTO WA_P2CO_COPRO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2CO_COPRO-VBASE, sy-vline,
  WA_P2CO_COPRO-WORKD, sy-vline,
  WA_P2CO_COPRO-NBALD, sy-vline,
  WA_P2CO_COPRO-NBALV, sy-vline,
  WA_P2CO_COPRO-PBALD, sy-vline,
  WA_P2CO_COPRO-PBALV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2CO_COPRO 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_P2CO_COPRO 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_P2CO_COPRO INTO WA_P2CO_COPRO.


*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_P2CO_COPRO_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
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_P2CO_COPRO_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_P2CO_COPRO_STR-MANDT sy-vline 
WA_P2CO_COPRO_STR-DCT_PERNR sy-vline 
WA_P2CO_COPRO_STR-DCT_SEQNR sy-vline 
WA_P2CO_COPRO_STR-DCT_ROWID sy-vline 
WA_P2CO_COPRO_STR-TRPROV sy-vline 
WA_P2CO_COPRO_STR-VBASE sy-vline 
WA_P2CO_COPRO_STR-WORKD sy-vline 
WA_P2CO_COPRO_STR-NBALD sy-vline 
WA_P2CO_COPRO_STR-NBALV sy-vline 
WA_P2CO_COPRO_STR-PBALD sy-vline 
WA_P2CO_COPRO_STR-PBALV sy-vline 
WA_P2CO_COPRO_STR-CAUSD sy-vline 
WA_P2CO_COPRO_STR-CAUSV sy-vline 
WA_P2CO_COPRO_STR-APAYD sy-vline 
WA_P2CO_COPRO_STR-APAYV sy-vline 
WA_P2CO_COPRO_STR-CPAYD sy-vline 
WA_P2CO_COPRO_STR-CPAYV sy-vline 
WA_P2CO_COPRO_STR-PNPYD sy-vline 
WA_P2CO_COPRO_STR-PNPYV sy-vline 
WA_P2CO_COPRO_STR-VCSTD sy-vline 
WA_P2CO_COPRO_STR-VCSTV sy-vline 
WA_P2CO_COPRO_STR-VBASE_CURR sy-vline 
WA_P2CO_COPRO_STR-NBALV_CURR sy-vline 
WA_P2CO_COPRO_STR-PBALV_CURR sy-vline 
WA_P2CO_COPRO_STR-APAYV_CURR sy-vline 
WA_P2CO_COPRO_STR-PNPYV_CURR sy-vline 
WA_P2CO_COPRO_STR-VCSTV_CURR sy-vline 
WA_P2CO_COPRO_STR-CAUSV_CURR sy-vline 
WA_P2CO_COPRO_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.