ABAP Select data from SAP table PTRV_FRACTION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRV_FRACTION
*  INTO TABLE @DATA(IT_PTRV_FRACTION2).
*--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_PTRV_FRACTION INDEX 1 INTO DATA(WA_PTRV_FRACTION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRV_FRACTION>-MANDT = 1.
<PTRV_FRACTION>-PERNR = 1.
<PTRV_FRACTION>-REINR = 1.
<PTRV_FRACTION>-PERIO = 1.
<PTRV_FRACTION>-PDVRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRV_FRACTION-TARIFART, sy-vline,
  WA_PTRV_FRACTION-READ_BEREI, sy-vline,
  WA_PTRV_FRACTION-FA_ZAEHLER, sy-vline,
  WA_PTRV_FRACTION-FA_NENNER, sy-vline,
  WA_PTRV_FRACTION-FZ_ZAEHLER, sy-vline,
  WA_PTRV_FRACTION-FZ_NENNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRV_FRACTION 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_PTRV_FRACTION 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_PTRV_FRACTION INTO WA_PTRV_FRACTION.


*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_PTRV_FRACTION_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
REINR TYPE STRING,
PERIO TYPE STRING,
PDVRS TYPE STRING,
TARIFART TYPE STRING,
READ_BEREI TYPE STRING,
FA_ZAEHLER TYPE STRING,
FA_NENNER TYPE STRING,
FZ_ZAEHLER TYPE STRING,
FZ_NENNER TYPE STRING,
P_TARIF_DATV1 TYPE STRING,
P_TARIF_UHRV1 TYPE STRING,
READ_ERKLA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRV_FRACTION_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_PTRV_FRACTION_STR-MANDT sy-vline 
WA_PTRV_FRACTION_STR-PERNR sy-vline 
WA_PTRV_FRACTION_STR-REINR sy-vline 
WA_PTRV_FRACTION_STR-PERIO sy-vline 
WA_PTRV_FRACTION_STR-PDVRS sy-vline 
WA_PTRV_FRACTION_STR-TARIFART sy-vline 
WA_PTRV_FRACTION_STR-READ_BEREI sy-vline 
WA_PTRV_FRACTION_STR-FA_ZAEHLER sy-vline 
WA_PTRV_FRACTION_STR-FA_NENNER sy-vline 
WA_PTRV_FRACTION_STR-FZ_ZAEHLER sy-vline 
WA_PTRV_FRACTION_STR-FZ_NENNER sy-vline 
WA_PTRV_FRACTION_STR-P_TARIF_DATV1 sy-vline 
WA_PTRV_FRACTION_STR-P_TARIF_UHRV1 sy-vline 
WA_PTRV_FRACTION_STR-READ_ERKLA sy-vline      INTO ld_text SEPARATED BY SPACE.

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