ABAP Select data from SAP table PTDBE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTDBE
*  INTO TABLE @DATA(IT_PTDBE2).
*--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_PTDBE INDEX 1 INTO DATA(WA_PTDBE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTDBE>-APZNR = 1.
<PTDBE>-MANDT = 1.
<PTDBE>-MOLGA = 1.
<PTDBE>-ZVKAS = 1.
<PTDBE>-TGG02 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTDBE-BAUTY, sy-vline,
  WA_PTDBE-BAUTZ, sy-vline,
  WA_PTDBE-SKBER, sy-vline,
  WA_PTDBE-APRIO, sy-vline,
  WA_PTDBE-ENDDA, sy-vline,
  WA_PTDBE-BEGDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTDBE 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_PTDBE 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_PTDBE INTO WA_PTDBE.


*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_PTDBE_STR, 
APZNR TYPE STRING,
MANDT TYPE STRING,
MOLGA TYPE STRING,
ZVKAS TYPE STRING,
TGG02 TYPE STRING,
BAUTY TYPE STRING,
BAUTZ TYPE STRING,
SKBER TYPE STRING,
APRIO TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
BTART TYPE STRING,
BSATZ TYPE STRING,
LGART TYPE STRING,
BBETR TYPE STRING,
BETPE TYPE STRING,
ANZHL TYPE STRING,
BETRG TYPE STRING,
EXAKT TYPE STRING,
VALID TYPE STRING,
SUCCS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTDBE_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_PTDBE_STR-APZNR sy-vline 
WA_PTDBE_STR-MANDT sy-vline 
WA_PTDBE_STR-MOLGA sy-vline 
WA_PTDBE_STR-ZVKAS sy-vline 
WA_PTDBE_STR-TGG02 sy-vline 
WA_PTDBE_STR-BAUTY sy-vline 
WA_PTDBE_STR-BAUTZ sy-vline 
WA_PTDBE_STR-SKBER sy-vline 
WA_PTDBE_STR-APRIO sy-vline 
WA_PTDBE_STR-ENDDA sy-vline 
WA_PTDBE_STR-BEGDA sy-vline 
WA_PTDBE_STR-BTART sy-vline 
WA_PTDBE_STR-BSATZ sy-vline 
WA_PTDBE_STR-LGART sy-vline 
WA_PTDBE_STR-BBETR sy-vline 
WA_PTDBE_STR-BETPE sy-vline 
WA_PTDBE_STR-ANZHL sy-vline 
WA_PTDBE_STR-BETRG sy-vline 
WA_PTDBE_STR-EXAKT sy-vline 
WA_PTDBE_STR-VALID sy-vline 
WA_PTDBE_STR-SUCCS sy-vline      INTO ld_text SEPARATED BY SPACE.

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