ABAP Select data from SAP table PC2BD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC2BD 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 PC2BD. 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 PC2BD 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_PC2BD TYPE STANDARD TABLE OF PC2BD,
      WA_PC2BD TYPE PC2BD,
      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: <PC2BD> TYPE PC2BD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC2BD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC2BD
  INTO TABLE IT_PC2BD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC2BD
*  INTO TABLE @DATA(IT_PC2BD2).
*--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_PC2BD INDEX 1 INTO DATA(WA_PC2BD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC2BD ASSIGNING <PC2BD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC2BD>-PRZNR = 1.
<PC2BD>-ENDDA = 1.
<PC2BD>-BEGDA = 1.
<PC2BD>-BEGUZ = 1.
<PC2BD>-ENDUZ = 1.

ENDLOOP.

LOOP AT IT_PC2BD INTO WA_PC2BD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC2BD-VTKEN, sy-vline,
  WA_PC2BD-AWART, sy-vline,
  WA_PC2BD-ABWTG, sy-vline,
  WA_PC2BD-STDAZ, sy-vline,
  WA_PC2BD-ABRTG, sy-vline,
  WA_PC2BD-ABRST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC2BD 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_PC2BD 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_PC2BD INTO WA_PC2BD.


*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_PC2BD_STR, 
PRZNR TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
VTKEN TYPE STRING,
AWART TYPE STRING,
ABWTG TYPE STRING,
STDAZ TYPE STRING,
ABRTG TYPE STRING,
ABRST TYPE STRING,
KALTG TYPE STRING,
VERSL TYPE STRING,
LGART TYPE STRING,
ALLDF TYPE STRING,
HRSIF TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
SEQNR TYPE STRING,
FAPRS TYPE STRING,
KEPAU TYPE STRING,
EXPAU TYPE STRING,
PBEG1 TYPE STRING,
PEND1 TYPE STRING,
PBEZ1 TYPE STRING,
PUNB1 TYPE STRING,
PBEG2 TYPE STRING,
PEND2 TYPE STRING,
PBEZ2 TYPE STRING,
PUNB2 TYPE STRING,
NXDFL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC2BD_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_PC2BD_STR-PRZNR sy-vline 
WA_PC2BD_STR-ENDDA sy-vline 
WA_PC2BD_STR-BEGDA sy-vline 
WA_PC2BD_STR-BEGUZ sy-vline 
WA_PC2BD_STR-ENDUZ sy-vline 
WA_PC2BD_STR-VTKEN sy-vline 
WA_PC2BD_STR-AWART sy-vline 
WA_PC2BD_STR-ABWTG sy-vline 
WA_PC2BD_STR-STDAZ sy-vline 
WA_PC2BD_STR-ABRTG sy-vline 
WA_PC2BD_STR-ABRST sy-vline 
WA_PC2BD_STR-KALTG sy-vline 
WA_PC2BD_STR-VERSL sy-vline 
WA_PC2BD_STR-LGART sy-vline 
WA_PC2BD_STR-ALLDF sy-vline 
WA_PC2BD_STR-HRSIF sy-vline 
WA_PC2BD_STR-REFEX sy-vline 
WA_PC2BD_STR-ORDEX sy-vline 
WA_PC2BD_STR-SUBTY sy-vline 
WA_PC2BD_STR-OBJPS sy-vline 
WA_PC2BD_STR-SPRPS sy-vline 
WA_PC2BD_STR-SEQNR sy-vline 
WA_PC2BD_STR-FAPRS sy-vline 
WA_PC2BD_STR-KEPAU sy-vline 
WA_PC2BD_STR-EXPAU sy-vline 
WA_PC2BD_STR-PBEG1 sy-vline 
WA_PC2BD_STR-PEND1 sy-vline 
WA_PC2BD_STR-PBEZ1 sy-vline 
WA_PC2BD_STR-PUNB1 sy-vline 
WA_PC2BD_STR-PBEG2 sy-vline 
WA_PC2BD_STR-PEND2 sy-vline 
WA_PC2BD_STR-PBEZ2 sy-vline 
WA_PC2BD_STR-PUNB2 sy-vline 
WA_PC2BD_STR-NXDFL sy-vline      INTO ld_text SEPARATED BY SPACE.

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