ABAP Select data from SAP table P445V 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 P445V 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 P445V. 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 P445V 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_P445V TYPE STANDARD TABLE OF P445V,
      WA_P445V TYPE P445V,
      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: <P445V> TYPE P445V.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P445V.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P445V
  INTO TABLE IT_P445V.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P445V
*  INTO TABLE @DATA(IT_P445V2).
*--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_P445V INDEX 1 INTO DATA(WA_P445V2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P445V ASSIGNING <P445V>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P445V>-MANDT = 1.
<P445V>-SSOUR = 1.
<P445V>-PRGRP = 1.
<P445V>-WERKS = 1.
<P445V>-VSNDA = 1.

ENDLOOP.

LOOP AT IT_P445V INTO WA_P445V.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P445V-VRSIO, sy-vline,
  WA_P445V-VETXT, sy-vline,
  WA_P445V-CDAT, sy-vline,
  WA_P445V-CTIME, sy-vline,
  WA_P445V-AUTOR, sy-vline,
  WA_P445V-UDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P445V 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_P445V 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_P445V INTO WA_P445V.


*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 MATN1, internal->external for field PRGRP
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_P445V-PRGRP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P445V-PRGRP.
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_P445V_STR, 
MANDT TYPE STRING,
SSOUR TYPE STRING,
PRGRP TYPE STRING,
WERKS TYPE STRING,
VSNDA TYPE STRING,
VRSIO TYPE STRING,
VETXT TYPE STRING,
CDAT TYPE STRING,
CTIME TYPE STRING,
AUTOR TYPE STRING,
UDAT TYPE STRING,
UPNAM TYPE STRING,
UTIME TYPE STRING,
AVRSI TYPE STRING,
VWDAT TYPE STRING,
STATU TYPE STRING,
VEART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P445V_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_P445V_STR-MANDT sy-vline 
WA_P445V_STR-SSOUR sy-vline 
WA_P445V_STR-PRGRP sy-vline 
WA_P445V_STR-WERKS sy-vline 
WA_P445V_STR-VSNDA sy-vline 
WA_P445V_STR-VRSIO sy-vline 
WA_P445V_STR-VETXT sy-vline 
WA_P445V_STR-CDAT sy-vline 
WA_P445V_STR-CTIME sy-vline 
WA_P445V_STR-AUTOR sy-vline 
WA_P445V_STR-UDAT sy-vline 
WA_P445V_STR-UPNAM sy-vline 
WA_P445V_STR-UTIME sy-vline 
WA_P445V_STR-AVRSI sy-vline 
WA_P445V_STR-VWDAT sy-vline 
WA_P445V_STR-STATU sy-vline 
WA_P445V_STR-VEART sy-vline      INTO ld_text SEPARATED BY SPACE.

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