ABAP Select data from SAP table V_T163K into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T163K 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 V_T163K. 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 V_T163K 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_V_T163K TYPE STANDARD TABLE OF V_T163K,
      WA_V_T163K TYPE V_T163K,
      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: <V_T163K> TYPE V_T163K.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T163K.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T163K
  INTO TABLE IT_V_T163K.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T163K
*  INTO TABLE @DATA(IT_V_T163K2).
*--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_V_T163K INDEX 1 INTO DATA(WA_V_T163K2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T163K ASSIGNING <V_T163K>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T163K>-MANDT = 1.
<V_T163K>-KNTTP = 1.
<V_T163K>-KNTAE = 1.
<V_T163K>-REUPD = 1.
<V_T163K>-WEPOS = 1.

ENDLOOP.

LOOP AT IT_V_T163K INTO WA_V_T163K.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T163K-WEPOV, sy-vline,
  WA_V_T163K-WEUNB, sy-vline,
  WA_V_T163K-WEUNV, sy-vline,
  WA_V_T163K-REPOS, sy-vline,
  WA_V_T163K-REPOV, sy-vline,
  WA_V_T163K-KNTDY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T163K 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_V_T163K 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_V_T163K INTO WA_V_T163K.


*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_V_T163K_STR, 
MANDT TYPE STRING,
KNTTP TYPE STRING,
KNTAE TYPE STRING,
REUPD TYPE STRING,
WEPOS TYPE STRING,
WEPOV TYPE STRING,
WEUNB TYPE STRING,
WEUNV TYPE STRING,
REPOS TYPE STRING,
REPOV TYPE STRING,
KNTDY TYPE STRING,
KNTTX TYPE STRING,
KOMOK TYPE STRING,
KZVBR TYPE STRING,
SOBKZ TYPE STRING,
SOTXT TYPE STRING,
KONAB TYPE STRING,
XBNSB TYPE STRING,
FAUS1 TYPE STRING,
FAUS2 TYPE STRING,
VRTKZ TYPE STRING,
TWRKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T163K_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_V_T163K_STR-MANDT sy-vline 
WA_V_T163K_STR-KNTTP sy-vline 
WA_V_T163K_STR-KNTAE sy-vline 
WA_V_T163K_STR-REUPD sy-vline 
WA_V_T163K_STR-WEPOS sy-vline 
WA_V_T163K_STR-WEPOV sy-vline 
WA_V_T163K_STR-WEUNB sy-vline 
WA_V_T163K_STR-WEUNV sy-vline 
WA_V_T163K_STR-REPOS sy-vline 
WA_V_T163K_STR-REPOV sy-vline 
WA_V_T163K_STR-KNTDY sy-vline 
WA_V_T163K_STR-KNTTX sy-vline 
WA_V_T163K_STR-KOMOK sy-vline 
WA_V_T163K_STR-KZVBR sy-vline 
WA_V_T163K_STR-SOBKZ sy-vline 
WA_V_T163K_STR-SOTXT sy-vline 
WA_V_T163K_STR-KONAB sy-vline 
WA_V_T163K_STR-XBNSB sy-vline 
WA_V_T163K_STR-FAUS1 sy-vline 
WA_V_T163K_STR-FAUS2 sy-vline 
WA_V_T163K_STR-VRTKZ sy-vline 
WA_V_T163K_STR-TWRKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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