ABAP Select data from SAP table PTRV_VERSION into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTRV_VERSION 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_VERSION. 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_VERSION 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_VERSION TYPE STANDARD TABLE OF PTRV_VERSION,
      WA_PTRV_VERSION TYPE PTRV_VERSION,
      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_VERSION> TYPE PTRV_VERSION.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRV_VERSION
*  INTO TABLE @DATA(IT_PTRV_VERSION2).
*--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_VERSION INDEX 1 INTO DATA(WA_PTRV_VERSION2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRV_VERSION-VERSION_NUMBER, sy-vline,
  WA_PTRV_VERSION-PDVRS, sy-vline,
  WA_PTRV_VERSION-HDVRS, sy-vline,
  WA_PTRV_VERSION-REQUESTVRS, sy-vline,
  WA_PTRV_VERSION-DATUM, sy-vline,
  WA_PTRV_VERSION-UZEIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRV_VERSION 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_VERSION 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_VERSION INTO WA_PTRV_VERSION.


*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_VERSION_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
REINR TYPE STRING,
PERIO TYPE STRING,
TRIP_COMPONENT TYPE STRING,
VERSION_NUMBER TYPE STRING,
PDVRS TYPE STRING,
HDVRS TYPE STRING,
REQUESTVRS TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
UNAME TYPE STRING,
REPID TYPE STRING,
DRUCK TYPE STRING,
ANTRG TYPE STRING,
ABREC TYPE STRING,
UEBLG TYPE STRING,
UEBRF TYPE STRING,
UEBDT TYPE STRING,
RUNID TYPE STRING,
STATU TYPE STRING,
REQ_STATUS TYPE STRING,
SUM_REIMBU TYPE STRING,
SUM_ADVANC TYPE STRING,
TRIP_TOTAL TYPE STRING,
CURRENCY TYPE STRING,
ESTIMATED_COST TYPE STRING,
EST_COST_CURR TYPE STRING,
NR_RECEIPTS TYPE STRING,
ARCHIVE_EXIST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRV_VERSION_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_VERSION_STR-MANDT sy-vline 
WA_PTRV_VERSION_STR-PERNR sy-vline 
WA_PTRV_VERSION_STR-REINR sy-vline 
WA_PTRV_VERSION_STR-PERIO sy-vline 
WA_PTRV_VERSION_STR-TRIP_COMPONENT sy-vline 
WA_PTRV_VERSION_STR-VERSION_NUMBER sy-vline 
WA_PTRV_VERSION_STR-PDVRS sy-vline 
WA_PTRV_VERSION_STR-HDVRS sy-vline 
WA_PTRV_VERSION_STR-REQUESTVRS sy-vline 
WA_PTRV_VERSION_STR-DATUM sy-vline 
WA_PTRV_VERSION_STR-UZEIT sy-vline 
WA_PTRV_VERSION_STR-UNAME sy-vline 
WA_PTRV_VERSION_STR-REPID sy-vline 
WA_PTRV_VERSION_STR-DRUCK sy-vline 
WA_PTRV_VERSION_STR-ANTRG sy-vline 
WA_PTRV_VERSION_STR-ABREC sy-vline 
WA_PTRV_VERSION_STR-UEBLG sy-vline 
WA_PTRV_VERSION_STR-UEBRF sy-vline 
WA_PTRV_VERSION_STR-UEBDT sy-vline 
WA_PTRV_VERSION_STR-RUNID sy-vline 
WA_PTRV_VERSION_STR-STATU sy-vline 
WA_PTRV_VERSION_STR-REQ_STATUS sy-vline 
WA_PTRV_VERSION_STR-SUM_REIMBU sy-vline 
WA_PTRV_VERSION_STR-SUM_ADVANC sy-vline 
WA_PTRV_VERSION_STR-TRIP_TOTAL sy-vline 
WA_PTRV_VERSION_STR-CURRENCY sy-vline 
WA_PTRV_VERSION_STR-ESTIMATED_COST sy-vline 
WA_PTRV_VERSION_STR-EST_COST_CURR sy-vline 
WA_PTRV_VERSION_STR-NR_RECEIPTS sy-vline 
WA_PTRV_VERSION_STR-ARCHIVE_EXIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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