ABAP Select data from SAP table TPFVP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPFVP
*  INTO TABLE @DATA(IT_TPFVP2).
*--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_TPFVP INDEX 1 INTO DATA(WA_TPFVP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPFVP>-PFNAME = 1.
<TPFVP>-AENZEIT = 1.
<TPFVP>-AENDATE = 1.
<TPFVP>-DPWORKDIR = 1.
<TPFVP>-APCABLKNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPFVP-APCABLKSZ, sy-vline,
  WA_TPFVP-DPDYSRV, sy-vline,
  WA_TPFVP-DPGATEWAY, sy-vline,
  WA_TPFVP-DPGWSRV, sy-vline,
  WA_TPFVP-DPMAXCE, sy-vline,
  WA_TPFVP-DPTRACE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPFVP 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_TPFVP 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_TPFVP INTO WA_TPFVP.


*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_TPFVP_STR, 
PFNAME TYPE STRING,
AENZEIT TYPE STRING,
AENDATE TYPE STRING,
DPWORKDIR TYPE STRING,
APCABLKNR TYPE STRING,
APCABLKSZ TYPE STRING,
DPDYSRV TYPE STRING,
DPGATEWAY TYPE STRING,
DPGWSRV TYPE STRING,
DPMAXCE TYPE STRING,
DPTRACE TYPE STRING,
DPTOTCP TYPE STRING,
DPTMMAXNR TYPE STRING,
DPMSGTXTSZ TYPE STRING,
WPCABLKNR TYPE STRING,
WPCABLKSZ TYPE STRING,
WPINIT TYPE STRING,
WPMIN TYPE STRING,
WPMAX TYPE STRING,
MAXSLEEP TYPE STRING,
WPMAXRUN TYPE STRING,
WPMAXDEBUG TYPE STRING,
DPPLAUSIS TYPE STRING,
TRANPREFIX TYPE STRING,
TMDEVNA TYPE STRING,
TMCLASS TYPE STRING,
TMPROG TYPE STRING,
TMINFO TYPE STRING,
NTHOSTNAME TYPE STRING,
NTPORTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPFVP_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_TPFVP_STR-PFNAME sy-vline 
WA_TPFVP_STR-AENZEIT sy-vline 
WA_TPFVP_STR-AENDATE sy-vline 
WA_TPFVP_STR-DPWORKDIR sy-vline 
WA_TPFVP_STR-APCABLKNR sy-vline 
WA_TPFVP_STR-APCABLKSZ sy-vline 
WA_TPFVP_STR-DPDYSRV sy-vline 
WA_TPFVP_STR-DPGATEWAY sy-vline 
WA_TPFVP_STR-DPGWSRV sy-vline 
WA_TPFVP_STR-DPMAXCE sy-vline 
WA_TPFVP_STR-DPTRACE sy-vline 
WA_TPFVP_STR-DPTOTCP sy-vline 
WA_TPFVP_STR-DPTMMAXNR sy-vline 
WA_TPFVP_STR-DPMSGTXTSZ sy-vline 
WA_TPFVP_STR-WPCABLKNR sy-vline 
WA_TPFVP_STR-WPCABLKSZ sy-vline 
WA_TPFVP_STR-WPINIT sy-vline 
WA_TPFVP_STR-WPMIN sy-vline 
WA_TPFVP_STR-WPMAX sy-vline 
WA_TPFVP_STR-MAXSLEEP sy-vline 
WA_TPFVP_STR-WPMAXRUN sy-vline 
WA_TPFVP_STR-WPMAXDEBUG sy-vline 
WA_TPFVP_STR-DPPLAUSIS sy-vline 
WA_TPFVP_STR-TRANPREFIX sy-vline 
WA_TPFVP_STR-TMDEVNA sy-vline 
WA_TPFVP_STR-TMCLASS sy-vline 
WA_TPFVP_STR-TMPROG sy-vline 
WA_TPFVP_STR-TMINFO sy-vline 
WA_TPFVP_STR-NTHOSTNAME sy-vline 
WA_TPFVP_STR-NTPORTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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