ABAP Select data from SAP table PTK10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTK10 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 PTK10. 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 PTK10 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_PTK10 TYPE STANDARD TABLE OF PTK10,
      WA_PTK10 TYPE PTK10,
      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: <PTK10> TYPE PTK10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTK10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTK10
  INTO TABLE IT_PTK10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTK10
*  INTO TABLE @DATA(IT_PTK102).
*--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_PTK10 INDEX 1 INTO DATA(WA_PTK102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTK10 ASSIGNING <PTK10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTK10>-DATUM = 1.
<PTK10>-KMGES = 1.
<PTK10>-KMINL = 1.
<PTK10>-KFZKZ = 1.
<PTK10>-KFZMA = 1.

ENDLOOP.

LOOP AT IT_PTK10 INTO WA_PTK10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTK10-AZMIT, sy-vline,
  WA_PTK10-KGGEP, sy-vline,
  WA_PTK10-BETPA, sy-vline,
  WA_PTK10-KZPMF, sy-vline,
  WA_PTK10-BEREI, sy-vline,
  WA_PTK10-LAND1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTK10 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_PTK10 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_PTK10 INTO WA_PTK10.


*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_PTK10_STR, 
DATUM TYPE STRING,
KMGES TYPE STRING,
KMINL TYPE STRING,
KFZKZ TYPE STRING,
KFZMA TYPE STRING,
AZMIT TYPE STRING,
KGGEP TYPE STRING,
BETPA TYPE STRING,
KZPMF TYPE STRING,
BEREI TYPE STRING,
LAND1 TYPE STRING,
PKWKL TYPE STRING,
RGION TYPE STRING,
KMVNR TYPE STRING,
INLKM TYPE STRING,
AUSKM TYPE STRING,
LOC_FROM TYPE STRING,
LOC_TO TYPE STRING,
ADD_INFO TYPE STRING,
COMPUTED_DIST TYPE STRING,
ROUND_TRIP TYPE STRING,
CONSUMPTION_TYPE TYPE STRING,
FUEL_RCPT_EXIST TYPE STRING,
FUEL_PRICE TYPE STRING,
FUEL_PRICE_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTK10_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_PTK10_STR-DATUM sy-vline 
WA_PTK10_STR-KMGES sy-vline 
WA_PTK10_STR-KMINL sy-vline 
WA_PTK10_STR-KFZKZ sy-vline 
WA_PTK10_STR-KFZMA sy-vline 
WA_PTK10_STR-AZMIT sy-vline 
WA_PTK10_STR-KGGEP sy-vline 
WA_PTK10_STR-BETPA sy-vline 
WA_PTK10_STR-KZPMF sy-vline 
WA_PTK10_STR-BEREI sy-vline 
WA_PTK10_STR-LAND1 sy-vline 
WA_PTK10_STR-PKWKL sy-vline 
WA_PTK10_STR-RGION sy-vline 
WA_PTK10_STR-KMVNR sy-vline 
WA_PTK10_STR-INLKM sy-vline 
WA_PTK10_STR-AUSKM sy-vline 
WA_PTK10_STR-LOC_FROM sy-vline 
WA_PTK10_STR-LOC_TO sy-vline 
WA_PTK10_STR-ADD_INFO sy-vline 
WA_PTK10_STR-COMPUTED_DIST sy-vline 
WA_PTK10_STR-ROUND_TRIP sy-vline 
WA_PTK10_STR-CONSUMPTION_TYPE sy-vline 
WA_PTK10_STR-FUEL_RCPT_EXIST sy-vline 
WA_PTK10_STR-FUEL_PRICE sy-vline 
WA_PTK10_STR-FUEL_PRICE_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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