ABAP Select data from SAP table V01FDP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP V01FDP 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 V01FDP. 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 V01FDP 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_V01FDP TYPE STANDARD TABLE OF V01FDP,
      WA_V01FDP TYPE V01FDP,
      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: <V01FDP> TYPE V01FDP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V01FDP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V01FDP
  INTO TABLE IT_V01FDP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V01FDP
*  INTO TABLE @DATA(IT_V01FDP2).
*--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_V01FDP INDEX 1 INTO DATA(WA_V01FDP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V01FDP ASSIGNING <V01FDP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V01FDP>-CHARG = 1.
<V01FDP>-LGORT = 1.
<V01FDP>-MENGE_P = 1.
<V01FDP>-MENGE_POLD = 1.
<V01FDP>-VRFMG_P = 1.

ENDLOOP.

LOOP AT IT_V01FDP INTO WA_V01FDP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V01FDP-EXT_QUAN, sy-vline,
  WA_V01FDP-ERFME, sy-vline,
  WA_V01FDP-STEXT, sy-vline,
  WA_V01FDP-TABIX, sy-vline,
  WA_V01FDP-XMARK, sy-vline,
  WA_V01FDP-XSELE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V01FDP 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_V01FDP 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_V01FDP INTO WA_V01FDP.


*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.

*Conversion exit CUNIT, internal->external for field ERFME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V01FDP-ERFME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V01FDP-ERFME.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_V01FDP_STR, 
CHARG TYPE STRING,
LGORT TYPE STRING,
MENGE_P TYPE STRING,
MENGE_POLD TYPE STRING,
VRFMG_P TYPE STRING,
EXT_QUAN TYPE STRING,
ERFME TYPE STRING,
STEXT TYPE STRING,
TABIX TYPE STRING,
XMARK TYPE STRING,
XSELE TYPE STRING,
XREAD TYPE STRING,
XKEEP TYPE STRING,
XCORR TYPE STRING,
XDELE TYPE STRING,
CLICON TYPE STRING,
BDSRT TYPE STRING,
XCLAS TYPE STRING,
SOBKZ TYPE STRING,
LOBM_BPRIO TYPE STRING,
BWTAR TYPE STRING,
MILL_SPMNG_ALT TYPE STRING,
MILL_VRFMG_UC TYPE STRING,
MILL_ICON_UC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V01FDP_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_V01FDP_STR-CHARG sy-vline 
WA_V01FDP_STR-LGORT sy-vline 
WA_V01FDP_STR-MENGE_P sy-vline 
WA_V01FDP_STR-MENGE_POLD sy-vline 
WA_V01FDP_STR-VRFMG_P sy-vline 
WA_V01FDP_STR-EXT_QUAN sy-vline 
WA_V01FDP_STR-ERFME sy-vline 
WA_V01FDP_STR-STEXT sy-vline 
WA_V01FDP_STR-TABIX sy-vline 
WA_V01FDP_STR-XMARK sy-vline 
WA_V01FDP_STR-XSELE sy-vline 
WA_V01FDP_STR-XREAD sy-vline 
WA_V01FDP_STR-XKEEP sy-vline 
WA_V01FDP_STR-XCORR sy-vline 
WA_V01FDP_STR-XDELE sy-vline 
WA_V01FDP_STR-CLICON sy-vline 
WA_V01FDP_STR-BDSRT sy-vline 
WA_V01FDP_STR-XCLAS sy-vline 
WA_V01FDP_STR-SOBKZ sy-vline 
WA_V01FDP_STR-LOBM_BPRIO sy-vline 
WA_V01FDP_STR-BWTAR sy-vline 
WA_V01FDP_STR-MILL_SPMNG_ALT sy-vline 
WA_V01FDP_STR-MILL_VRFMG_UC sy-vline 
WA_V01FDP_STR-MILL_ICON_UC sy-vline      INTO ld_text SEPARATED BY SPACE.

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