ABAP Select data from SAP table PTRV_TRVCT_F into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTRV_TRVCT_F 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_TRVCT_F. 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_TRVCT_F 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_TRVCT_F TYPE STANDARD TABLE OF PTRV_TRVCT_F,
      WA_PTRV_TRVCT_F TYPE PTRV_TRVCT_F,
      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_TRVCT_F> TYPE PTRV_TRVCT_F.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRV_TRVCT_F
*  INTO TABLE @DATA(IT_PTRV_TRVCT_F2).
*--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_TRVCT_F INDEX 1 INTO DATA(WA_PTRV_TRVCT_F2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRV_TRVCT_F>-F01 = 1.
<PTRV_TRVCT_F>-F02 = 1.
<PTRV_TRVCT_F>-F03 = 1.
<PTRV_TRVCT_F>-F04 = 1.
<PTRV_TRVCT_F>-F05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRV_TRVCT_F-F06, sy-vline,
  WA_PTRV_TRVCT_F-F07, sy-vline,
  WA_PTRV_TRVCT_F-F08, sy-vline,
  WA_PTRV_TRVCT_F-F09, sy-vline,
  WA_PTRV_TRVCT_F-F10, sy-vline,
  WA_PTRV_TRVCT_F-F11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRV_TRVCT_F 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_TRVCT_F 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_TRVCT_F INTO WA_PTRV_TRVCT_F.


*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_TRVCT_F_STR, 
F01 TYPE STRING,
F02 TYPE STRING,
F03 TYPE STRING,
F04 TYPE STRING,
F05 TYPE STRING,
F06 TYPE STRING,
F07 TYPE STRING,
F08 TYPE STRING,
F09 TYPE STRING,
F10 TYPE STRING,
F11 TYPE STRING,
F12 TYPE STRING,
F13 TYPE STRING,
F14 TYPE STRING,
F15 TYPE STRING,
F16 TYPE STRING,
F17 TYPE STRING,
F18 TYPE STRING,
F19 TYPE STRING,
F20 TYPE STRING,
F21 TYPE STRING,
F22 TYPE STRING,
F23 TYPE STRING,
F24 TYPE STRING,
F25 TYPE STRING,
F26 TYPE STRING,
F27 TYPE STRING,
F28 TYPE STRING,
F29 TYPE STRING,
F30 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRV_TRVCT_F_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_TRVCT_F_STR-F01 sy-vline 
WA_PTRV_TRVCT_F_STR-F02 sy-vline 
WA_PTRV_TRVCT_F_STR-F03 sy-vline 
WA_PTRV_TRVCT_F_STR-F04 sy-vline 
WA_PTRV_TRVCT_F_STR-F05 sy-vline 
WA_PTRV_TRVCT_F_STR-F06 sy-vline 
WA_PTRV_TRVCT_F_STR-F07 sy-vline 
WA_PTRV_TRVCT_F_STR-F08 sy-vline 
WA_PTRV_TRVCT_F_STR-F09 sy-vline 
WA_PTRV_TRVCT_F_STR-F10 sy-vline 
WA_PTRV_TRVCT_F_STR-F11 sy-vline 
WA_PTRV_TRVCT_F_STR-F12 sy-vline 
WA_PTRV_TRVCT_F_STR-F13 sy-vline 
WA_PTRV_TRVCT_F_STR-F14 sy-vline 
WA_PTRV_TRVCT_F_STR-F15 sy-vline 
WA_PTRV_TRVCT_F_STR-F16 sy-vline 
WA_PTRV_TRVCT_F_STR-F17 sy-vline 
WA_PTRV_TRVCT_F_STR-F18 sy-vline 
WA_PTRV_TRVCT_F_STR-F19 sy-vline 
WA_PTRV_TRVCT_F_STR-F20 sy-vline 
WA_PTRV_TRVCT_F_STR-F21 sy-vline 
WA_PTRV_TRVCT_F_STR-F22 sy-vline 
WA_PTRV_TRVCT_F_STR-F23 sy-vline 
WA_PTRV_TRVCT_F_STR-F24 sy-vline 
WA_PTRV_TRVCT_F_STR-F25 sy-vline 
WA_PTRV_TRVCT_F_STR-F26 sy-vline 
WA_PTRV_TRVCT_F_STR-F27 sy-vline 
WA_PTRV_TRVCT_F_STR-F28 sy-vline 
WA_PTRV_TRVCT_F_STR-F29 sy-vline 
WA_PTRV_TRVCT_F_STR-F30 sy-vline      INTO ld_text SEPARATED BY SPACE.

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