ABAP Select data from SAP table PTRSTCLASFLO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRSTCLASFLO
*  INTO TABLE @DATA(IT_PTRSTCLASFLO2).
*--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_PTRSTCLASFLO INDEX 1 INTO DATA(WA_PTRSTCLASFLO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRSTCLASFLO>-MANDT = 1.
<PTRSTCLASFLO>-OS_GUID = 1.
<PTRSTCLASFLO>-CLASPOS_GUID = 1.
<PTRSTCLASFLO>-NUMBEROFCALCULATIONDAYS = 1.
<PTRSTCLASFLO>-NUMBEROFDAYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRSTCLASFLO-SECURITYCOUPONDATE, sy-vline,
  WA_PTRSTCLASFLO-SECURITYCOUPONDELIVERY, sy-vline,
  WA_PTRSTCLASFLO-PAYMENTDATE, sy-vline,
  WA_PTRSTCLASFLO-HOUSEBANK, sy-vline,
  WA_PTRSTCLASFLO-HOUSEBANKACCOUNT, sy-vline,
  WA_PTRSTCLASFLO-CASHFLOWCALCULATIONCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRSTCLASFLO 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_PTRSTCLASFLO 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_PTRSTCLASFLO INTO WA_PTRSTCLASFLO.


*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_PTRSTCLASFLO_STR, 
MANDT TYPE STRING,
OS_GUID TYPE STRING,
CLASPOS_GUID TYPE STRING,
NUMBEROFCALCULATIONDAYS TYPE STRING,
NUMBEROFDAYS TYPE STRING,
SECURITYCOUPONDATE TYPE STRING,
SECURITYCOUPONDELIVERY TYPE STRING,
PAYMENTDATE TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
CASHFLOWCALCULATIONCATEGORY TYPE STRING,
CALCPERIODSTARTDATEISEXCLUSIVE TYPE STRING,
ACCRUEDINTERESTISCONTAINED TYPE STRING,
DUEDATEISMONTHEND TYPE STRING,
INTERESTDAYSCALENDAR TYPE STRING,
CONDITIONTYPE TYPE STRING,
PERIODSTARTDATEISEXCLUSIVE TYPE STRING,
PERIODSTARTDATEISMONTHEND TYPE STRING,
PERIODENDDATEISINCLUSIVE TYPE STRING,
PERIODENDDATEISMONTHEND TYPE STRING,
ACCRUEDINTERESTMETHOD TYPE STRING,
ACCRUEDINTERESTCALCMETHOD TYPE STRING,
INTERESTBASEDAYSMETHOD TYPE STRING,
CALCPERIODENDDATEISMONTHEND TYPE STRING,
CALCPERIODSTARTDATEISMONTHEND TYPE STRING,
CALCULATIONDATEISMONTHEND TYPE STRING,
SECURITIESFLOWCATEGORY TYPE STRING,
TREASURYBUSINESSTRANSACTION TYPE STRING,
TREASURYTRANSACTIONFLOW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRSTCLASFLO_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_PTRSTCLASFLO_STR-MANDT sy-vline 
WA_PTRSTCLASFLO_STR-OS_GUID sy-vline 
WA_PTRSTCLASFLO_STR-CLASPOS_GUID sy-vline 
WA_PTRSTCLASFLO_STR-NUMBEROFCALCULATIONDAYS sy-vline 
WA_PTRSTCLASFLO_STR-NUMBEROFDAYS sy-vline 
WA_PTRSTCLASFLO_STR-SECURITYCOUPONDATE sy-vline 
WA_PTRSTCLASFLO_STR-SECURITYCOUPONDELIVERY sy-vline 
WA_PTRSTCLASFLO_STR-PAYMENTDATE sy-vline 
WA_PTRSTCLASFLO_STR-HOUSEBANK sy-vline 
WA_PTRSTCLASFLO_STR-HOUSEBANKACCOUNT sy-vline 
WA_PTRSTCLASFLO_STR-CASHFLOWCALCULATIONCATEGORY sy-vline 
WA_PTRSTCLASFLO_STR-CALCPERIODSTARTDATEISEXCLUSIVE sy-vline 
WA_PTRSTCLASFLO_STR-ACCRUEDINTERESTISCONTAINED sy-vline 
WA_PTRSTCLASFLO_STR-DUEDATEISMONTHEND sy-vline 
WA_PTRSTCLASFLO_STR-INTERESTDAYSCALENDAR sy-vline 
WA_PTRSTCLASFLO_STR-CONDITIONTYPE sy-vline 
WA_PTRSTCLASFLO_STR-PERIODSTARTDATEISEXCLUSIVE sy-vline 
WA_PTRSTCLASFLO_STR-PERIODSTARTDATEISMONTHEND sy-vline 
WA_PTRSTCLASFLO_STR-PERIODENDDATEISINCLUSIVE sy-vline 
WA_PTRSTCLASFLO_STR-PERIODENDDATEISMONTHEND sy-vline 
WA_PTRSTCLASFLO_STR-ACCRUEDINTERESTMETHOD sy-vline 
WA_PTRSTCLASFLO_STR-ACCRUEDINTERESTCALCMETHOD sy-vline 
WA_PTRSTCLASFLO_STR-INTERESTBASEDAYSMETHOD sy-vline 
WA_PTRSTCLASFLO_STR-CALCPERIODENDDATEISMONTHEND sy-vline 
WA_PTRSTCLASFLO_STR-CALCPERIODSTARTDATEISMONTHEND sy-vline 
WA_PTRSTCLASFLO_STR-CALCULATIONDATEISMONTHEND sy-vline 
WA_PTRSTCLASFLO_STR-SECURITIESFLOWCATEGORY sy-vline 
WA_PTRSTCLASFLO_STR-TREASURYBUSINESSTRANSACTION sy-vline 
WA_PTRSTCLASFLO_STR-TREASURYTRANSACTIONFLOW sy-vline      INTO ld_text SEPARATED BY SPACE.

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