ABAP Select data from SAP table PTDBA 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 PTDBA 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 PTDBA. 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 PTDBA 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_PTDBA TYPE STANDARD TABLE OF PTDBA,
      WA_PTDBA TYPE PTDBA,
      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: <PTDBA> TYPE PTDBA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTDBA
*  INTO TABLE @DATA(IT_PTDBA2).
*--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_PTDBA INDEX 1 INTO DATA(WA_PTDBA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTDBA>-DATUM = 1.
<PTDBA>-C1ZNR = 1.
<PTDBA>-RUECK = 1.
<PTDBA>-FKEJN = 1.
<PTDBA>-STABR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTDBA-STABV, sy-vline,
  WA_PTDBA-STABU, sy-vline,
  WA_PTDBA-STABO, sy-vline,
  WA_PTDBA-ABWTG, sy-vline,
  WA_PTDBA-STDAZ, sy-vline,
  WA_PTDBA-LGART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTDBA 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_PTDBA 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_PTDBA INTO WA_PTDBA.


*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_PTDBA_STR, 
DATUM TYPE STRING,
C1ZNR TYPE STRING,
RUECK TYPE STRING,
FKEJN TYPE STRING,
STABR TYPE STRING,
STABV TYPE STRING,
STABU TYPE STRING,
STABO TYPE STRING,
ABWTG TYPE STRING,
STDAZ TYPE STRING,
LGART TYPE STRING,
AWDBT TYPE STRING,
SFLGA TYPE STRING,
SFBTG TYPE STRING,
PVVLG TYPE STRING,
PVVBT TYPE STRING,
SPLGA TYPE STRING,
SPBTG TYPE STRING,
SFPUL TYPE STRING,
SFPUB TYPE STRING,
W1ZNR TYPE STRING,
UELGA TYPE STRING,
UEKOS TYPE STRING,
SFFKL TYPE STRING,
SFFKB TYPE STRING,
PVLGA TYPE STRING,
PVBTG TYPE STRING,
KOLON TYPE STRING,
MOTPR TYPE STRING,
TPROG TYPE STRING,
VARIA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTDBA_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_PTDBA_STR-DATUM sy-vline 
WA_PTDBA_STR-C1ZNR sy-vline 
WA_PTDBA_STR-RUECK sy-vline 
WA_PTDBA_STR-FKEJN sy-vline 
WA_PTDBA_STR-STABR sy-vline 
WA_PTDBA_STR-STABV sy-vline 
WA_PTDBA_STR-STABU sy-vline 
WA_PTDBA_STR-STABO sy-vline 
WA_PTDBA_STR-ABWTG sy-vline 
WA_PTDBA_STR-STDAZ sy-vline 
WA_PTDBA_STR-LGART sy-vline 
WA_PTDBA_STR-AWDBT sy-vline 
WA_PTDBA_STR-SFLGA sy-vline 
WA_PTDBA_STR-SFBTG sy-vline 
WA_PTDBA_STR-PVVLG sy-vline 
WA_PTDBA_STR-PVVBT sy-vline 
WA_PTDBA_STR-SPLGA sy-vline 
WA_PTDBA_STR-SPBTG sy-vline 
WA_PTDBA_STR-SFPUL sy-vline 
WA_PTDBA_STR-SFPUB sy-vline 
WA_PTDBA_STR-W1ZNR sy-vline 
WA_PTDBA_STR-UELGA sy-vline 
WA_PTDBA_STR-UEKOS sy-vline 
WA_PTDBA_STR-SFFKL sy-vline 
WA_PTDBA_STR-SFFKB sy-vline 
WA_PTDBA_STR-PVLGA sy-vline 
WA_PTDBA_STR-PVBTG sy-vline 
WA_PTDBA_STR-KOLON sy-vline 
WA_PTDBA_STR-MOTPR sy-vline 
WA_PTDBA_STR-TPROG sy-vline 
WA_PTDBA_STR-VARIA sy-vline      INTO ld_text SEPARATED BY SPACE.

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