ABAP Select data from SAP table PTR17 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTR17 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 PTR17. 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 PTR17 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_PTR17 TYPE STANDARD TABLE OF PTR17,
      WA_PTR17 TYPE PTR17,
      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: <PTR17> TYPE PTR17.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTR17.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTR17
  INTO TABLE IT_PTR17.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTR17
*  INTO TABLE @DATA(IT_PTR172).
*--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_PTR17 INDEX 1 INTO DATA(WA_PTR172).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTR17 ASSIGNING <PTR17>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTR17>-KOSTL = 1.
<PTR17>-PERNR = 1.
<PTR17>-ENAME = 1.
<PTR17>-GESCH = 1.
<PTR17>-GBDAT = 1.

ENDLOOP.

LOOP AT IT_PTR17 INTO WA_PTR17.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTR17-HIRED, sy-vline,
  WA_PTR17-SSKDT, sy-vline,
  WA_PTR17-WORK_DAY, sy-vline,
  WA_PTR17-WORK_TIME, sy-vline,
  WA_PTR17-BRUT_MAAS, sy-vline,
  WA_PTR17-BET01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTR17 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_PTR17 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_PTR17 INTO WA_PTR17.


*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.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTR17-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTR17-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PTR17-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTR17-GBDAT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PTR17_STR, 
KOSTL TYPE STRING,
PERNR TYPE STRING,
ENAME TYPE STRING,
GESCH TYPE STRING,
GBDAT TYPE STRING,
HIRED TYPE STRING,
SSKDT TYPE STRING,
WORK_DAY TYPE STRING,
WORK_TIME TYPE STRING,
BRUT_MAAS TYPE STRING,
BET01 TYPE STRING,
PER_KPMG TYPE STRING,
AGE TYPE STRING,
WORK_YEAR TYPE STRING,
TOT_WORK_YEAR TYPE STRING,
YAS_WORK_YEAR TYPE STRING,
RETIRE_AGE TYPE STRING,
WAERS TYPE STRING,
REM_RETIRE_YEAR TYPE STRING,
DISCOUNT_RATE TYPE STRING,
DISCOUNT_ETB TYPE STRING,
PROB TYPE STRING,
TOTAL_LIABILITY TYPE STRING,
FARK_LIABILITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTR17_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_PTR17_STR-KOSTL sy-vline 
WA_PTR17_STR-PERNR sy-vline 
WA_PTR17_STR-ENAME sy-vline 
WA_PTR17_STR-GESCH sy-vline 
WA_PTR17_STR-GBDAT sy-vline 
WA_PTR17_STR-HIRED sy-vline 
WA_PTR17_STR-SSKDT sy-vline 
WA_PTR17_STR-WORK_DAY sy-vline 
WA_PTR17_STR-WORK_TIME sy-vline 
WA_PTR17_STR-BRUT_MAAS sy-vline 
WA_PTR17_STR-BET01 sy-vline 
WA_PTR17_STR-PER_KPMG sy-vline 
WA_PTR17_STR-AGE sy-vline 
WA_PTR17_STR-WORK_YEAR sy-vline 
WA_PTR17_STR-TOT_WORK_YEAR sy-vline 
WA_PTR17_STR-YAS_WORK_YEAR sy-vline 
WA_PTR17_STR-RETIRE_AGE sy-vline 
WA_PTR17_STR-WAERS sy-vline 
WA_PTR17_STR-REM_RETIRE_YEAR sy-vline 
WA_PTR17_STR-DISCOUNT_RATE sy-vline 
WA_PTR17_STR-DISCOUNT_ETB sy-vline 
WA_PTR17_STR-PROB sy-vline 
WA_PTR17_STR-TOTAL_LIABILITY sy-vline 
WA_PTR17_STR-FARK_LIABILITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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