ABAP Select data from SAP table TPFVA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPFVA
*  INTO TABLE @DATA(IT_TPFVA2).
*--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_TPFVA INDEX 1 INTO DATA(WA_TPFVA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPFVA>-PFNAME = 1.
<TPFVA>-AENZEIT = 1.
<TPFVA>-AENDATE = 1.
<TPFVA>-ABRSYN = 1.
<TPFVA>-ABRSYTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPFVA-ABFORMA, sy-vline,
  WA_TPFVA-ABPXA, sy-vline,
  WA_TPFVA-ABPXACL, sy-vline,
  WA_TPFVA-ABBUFSZ, sy-vline,
  WA_TPFVA-ABPROGS, sy-vline,
  WA_TPFVA-ABDUMPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPFVA 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_TPFVA 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_TPFVA INTO WA_TPFVA.


*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_TPFVA_STR, 
PFNAME TYPE STRING,
AENZEIT TYPE STRING,
AENDATE TYPE STRING,
ABRSYN TYPE STRING,
ABRSYTL TYPE STRING,
ABFORMA TYPE STRING,
ABPXA TYPE STRING,
ABPXACL TYPE STRING,
ABBUFSZ TYPE STRING,
ABPROGS TYPE STRING,
ABDUMPE TYPE STRING,
ABTMOUT TYPE STRING,
ABIGICC TYPE STRING,
ABATRPA TYPE STRING,
ABATRDI TYPE STRING,
ABLOCCT TYPE STRING,
ABMSGOUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPFVA_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_TPFVA_STR-PFNAME sy-vline 
WA_TPFVA_STR-AENZEIT sy-vline 
WA_TPFVA_STR-AENDATE sy-vline 
WA_TPFVA_STR-ABRSYN sy-vline 
WA_TPFVA_STR-ABRSYTL sy-vline 
WA_TPFVA_STR-ABFORMA sy-vline 
WA_TPFVA_STR-ABPXA sy-vline 
WA_TPFVA_STR-ABPXACL sy-vline 
WA_TPFVA_STR-ABBUFSZ sy-vline 
WA_TPFVA_STR-ABPROGS sy-vline 
WA_TPFVA_STR-ABDUMPE sy-vline 
WA_TPFVA_STR-ABTMOUT sy-vline 
WA_TPFVA_STR-ABIGICC sy-vline 
WA_TPFVA_STR-ABATRPA sy-vline 
WA_TPFVA_STR-ABATRDI sy-vline 
WA_TPFVA_STR-ABLOCCT sy-vline 
WA_TPFVA_STR-ABMSGOUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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