ABAP Select data from SAP table PC2BP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2BP 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 PC2BP. 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 PC2BP 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_PC2BP TYPE STANDARD TABLE OF PC2BP,
      WA_PC2BP TYPE PC2BP,
      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: <PC2BP> TYPE PC2BP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2BP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2BP
  INTO TABLE IT_PC2BP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2BP
*  INTO TABLE @DATA(IT_PC2BP2).
*--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_PC2BP INDEX 1 INTO DATA(WA_PC2BP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2BP ASSIGNING <PC2BP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2BP>-APZNR = 1.
<PC2BP>-ABART = 1.
<PC2BP>-BAREA = 1.
<PC2BP>-RQTYP = 1.
<PC2BP>-RQOPT = 1.

ENDLOOP.

LOOP AT IT_PC2BP INTO WA_PC2BP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2BP-OBJPS, sy-vline,
  WA_PC2BP-RQDAT, sy-vline,
  WA_PC2BP-PYPDT, sy-vline,
  WA_PC2BP-RQAMT, sy-vline,
  WA_PC2BP-RQACU, sy-vline,
  WA_PC2BP-RMWTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2BP 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_PC2BP 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_PC2BP INTO WA_PC2BP.


*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_PC2BP_STR, 
APZNR TYPE STRING,
ABART TYPE STRING,
BAREA TYPE STRING,
RQTYP TYPE STRING,
RQOPT TYPE STRING,
OBJPS TYPE STRING,
RQDAT TYPE STRING,
PYPDT TYPE STRING,
RQAMT TYPE STRING,
RQACU TYPE STRING,
RMWTY TYPE STRING,
RBAMT TYPE STRING,
RQRCU TYPE STRING,
RDPTS TYPE STRING,
DEWTY TYPE STRING,
RDAMT TYPE STRING,
RQDCU TYPE STRING,
RBPTS TYPE STRING,
EXWTY TYPE STRING,
EXAMT TYPE STRING,
RQECU TYPE STRING,
EXPTS TYPE STRING,
CUWTY TYPE STRING,
CUAMT TYPE STRING,
DIFCU TYPE STRING,
PRMOD TYPE STRING,
CONVR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2BP_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_PC2BP_STR-APZNR sy-vline 
WA_PC2BP_STR-ABART sy-vline 
WA_PC2BP_STR-BAREA sy-vline 
WA_PC2BP_STR-RQTYP sy-vline 
WA_PC2BP_STR-RQOPT sy-vline 
WA_PC2BP_STR-OBJPS sy-vline 
WA_PC2BP_STR-RQDAT sy-vline 
WA_PC2BP_STR-PYPDT sy-vline 
WA_PC2BP_STR-RQAMT sy-vline 
WA_PC2BP_STR-RQACU sy-vline 
WA_PC2BP_STR-RMWTY sy-vline 
WA_PC2BP_STR-RBAMT sy-vline 
WA_PC2BP_STR-RQRCU sy-vline 
WA_PC2BP_STR-RDPTS sy-vline 
WA_PC2BP_STR-DEWTY sy-vline 
WA_PC2BP_STR-RDAMT sy-vline 
WA_PC2BP_STR-RQDCU sy-vline 
WA_PC2BP_STR-RBPTS sy-vline 
WA_PC2BP_STR-EXWTY sy-vline 
WA_PC2BP_STR-EXAMT sy-vline 
WA_PC2BP_STR-RQECU sy-vline 
WA_PC2BP_STR-EXPTS sy-vline 
WA_PC2BP_STR-CUWTY sy-vline 
WA_PC2BP_STR-CUAMT sy-vline 
WA_PC2BP_STR-DIFCU sy-vline 
WA_PC2BP_STR-PRMOD sy-vline 
WA_PC2BP_STR-CONVR sy-vline      INTO ld_text SEPARATED BY SPACE.

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