ABAP Select data from SAP table PTDBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTDBJ
*  INTO TABLE @DATA(IT_PTDBJ2).
*--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_PTDBJ INDEX 1 INTO DATA(WA_PTDBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTDBJ>-FLMOD = 1.
<PTDBJ>-FLMTX = 1.
<PTDBJ>-APZNR = 1.
<PTDBJ>-BEGDA = 1.
<PTDBJ>-ENDDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTDBJ-VORAZ, sy-vline,
  WA_PTDBJ-VORLG, sy-vline,
  WA_PTDBJ-EINAZ, sy-vline,
  WA_PTDBJ-EINLG, sy-vline,
  WA_PTDBJ-SSOLL, sy-vline,
  WA_PTDBJ-SDIVI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTDBJ 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_PTDBJ 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_PTDBJ INTO WA_PTDBJ.


*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_PTDBJ_STR, 
FLMOD TYPE STRING,
FLMTX TYPE STRING,
APZNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VORAZ TYPE STRING,
VORLG TYPE STRING,
EINAZ TYPE STRING,
EINLG TYPE STRING,
SSOLL TYPE STRING,
SDIVI TYPE STRING,
SSOLE TYPE STRING,
SDIVE TYPE STRING,
SSOLV TYPE STRING,
SDIVV TYPE STRING,
ABART TYPE STRING,
MESAZ TYPE STRING,
MESKZ TYPE STRING,
MESUK TYPE STRING,
ISTVO TYPE STRING,
VORKZ TYPE STRING,
VORAI TYPE STRING,
SVEAZ TYPE STRING,
SVEKZ TYPE STRING,
SVEUK TYPE STRING,
ISTEI TYPE STRING,
EINAI TYPE STRING,
EAMAZ TYPE STRING,
KNZMA TYPE STRING,
MSVMA TYPE STRING,
MEAIS TYPE STRING,
MEAAZ TYPE STRING,
MEALG TYPE STRING,
MMSTD TYPE STRING,
MMVST TYPE STRING,
MBSTD TYPE STRING,
MBSTE TYPE STRING,
EINKG TYPE STRING,
MVSTD TYPE STRING,
VORKG TYPE STRING,
EINKP TYPE STRING,
VORKP TYPE STRING,
VOBTR TYPE STRING,
EBBTR TYPE STRING,
RDTYP TYPE STRING,
VAIKP TYPE STRING,
EAIKP TYPE STRING,
EAMKP TYPE STRING,
SWAGL TYPE STRING,
VASTD TYPE STRING,
LAWAV TYPE STRING,
LAWAW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTDBJ_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_PTDBJ_STR-FLMOD sy-vline 
WA_PTDBJ_STR-FLMTX sy-vline 
WA_PTDBJ_STR-APZNR sy-vline 
WA_PTDBJ_STR-BEGDA sy-vline 
WA_PTDBJ_STR-ENDDA sy-vline 
WA_PTDBJ_STR-VORAZ sy-vline 
WA_PTDBJ_STR-VORLG sy-vline 
WA_PTDBJ_STR-EINAZ sy-vline 
WA_PTDBJ_STR-EINLG sy-vline 
WA_PTDBJ_STR-SSOLL sy-vline 
WA_PTDBJ_STR-SDIVI sy-vline 
WA_PTDBJ_STR-SSOLE sy-vline 
WA_PTDBJ_STR-SDIVE sy-vline 
WA_PTDBJ_STR-SSOLV sy-vline 
WA_PTDBJ_STR-SDIVV sy-vline 
WA_PTDBJ_STR-ABART sy-vline 
WA_PTDBJ_STR-MESAZ sy-vline 
WA_PTDBJ_STR-MESKZ sy-vline 
WA_PTDBJ_STR-MESUK sy-vline 
WA_PTDBJ_STR-ISTVO sy-vline 
WA_PTDBJ_STR-VORKZ sy-vline 
WA_PTDBJ_STR-VORAI sy-vline 
WA_PTDBJ_STR-SVEAZ sy-vline 
WA_PTDBJ_STR-SVEKZ sy-vline 
WA_PTDBJ_STR-SVEUK sy-vline 
WA_PTDBJ_STR-ISTEI sy-vline 
WA_PTDBJ_STR-EINAI sy-vline 
WA_PTDBJ_STR-EAMAZ sy-vline 
WA_PTDBJ_STR-KNZMA sy-vline 
WA_PTDBJ_STR-MSVMA sy-vline 
WA_PTDBJ_STR-MEAIS sy-vline 
WA_PTDBJ_STR-MEAAZ sy-vline 
WA_PTDBJ_STR-MEALG sy-vline 
WA_PTDBJ_STR-MMSTD sy-vline 
WA_PTDBJ_STR-MMVST sy-vline 
WA_PTDBJ_STR-MBSTD sy-vline 
WA_PTDBJ_STR-MBSTE sy-vline 
WA_PTDBJ_STR-EINKG sy-vline 
WA_PTDBJ_STR-MVSTD sy-vline 
WA_PTDBJ_STR-VORKG sy-vline 
WA_PTDBJ_STR-EINKP sy-vline 
WA_PTDBJ_STR-VORKP sy-vline 
WA_PTDBJ_STR-VOBTR sy-vline 
WA_PTDBJ_STR-EBBTR sy-vline 
WA_PTDBJ_STR-RDTYP sy-vline 
WA_PTDBJ_STR-VAIKP sy-vline 
WA_PTDBJ_STR-EAIKP sy-vline 
WA_PTDBJ_STR-EAMKP sy-vline 
WA_PTDBJ_STR-SWAGL sy-vline 
WA_PTDBJ_STR-VASTD sy-vline 
WA_PTDBJ_STR-LAWAV sy-vline 
WA_PTDBJ_STR-LAWAW sy-vline      INTO ld_text SEPARATED BY SPACE.

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