ABAP Select data from SAP table V_161Z_K 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 V_161Z_K 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_161Z_K. 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_161Z_K 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_161Z_K TYPE STANDARD TABLE OF V_161Z_K,
      WA_V_161Z_K TYPE V_161Z_K,
      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_161Z_K> TYPE V_161Z_K.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_161Z_K.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_161Z_K
  INTO TABLE IT_V_161Z_K.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_161Z_K
*  INTO TABLE @DATA(IT_V_161Z_K2).
*--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_161Z_K INDEX 1 INTO DATA(WA_V_161Z_K2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_161Z_K ASSIGNING <V_161Z_K>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_161Z_K>-MANDT = 1.
<V_161Z_K>-BSTYP = 1.
<V_161Z_K>-BSART = 1.
<V_161Z_K>-BATXT = 1.
<V_161Z_K>-PR1AK = 1.

ENDLOOP.

LOOP AT IT_V_161Z_K INTO WA_V_161Z_K.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_161Z_K-PR1TL, sy-vline,
  WA_V_161Z_K-PR1VK, sy-vline,
  WA_V_161Z_K-PR1PR, sy-vline,
  WA_V_161Z_K-PR2AK, sy-vline,
  WA_V_161Z_K-PR2TL, sy-vline,
  WA_V_161Z_K-PR2VK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_161Z_K 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_161Z_K 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_161Z_K INTO WA_V_161Z_K.


*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_161Z_K_STR, 
MANDT TYPE STRING,
BSTYP TYPE STRING,
BSART TYPE STRING,
BATXT TYPE STRING,
PR1AK TYPE STRING,
PR1TL TYPE STRING,
PR1VK TYPE STRING,
PR1PR TYPE STRING,
PR2AK TYPE STRING,
PR2TL TYPE STRING,
PR2VK TYPE STRING,
PR2PR TYPE STRING,
PR3AK TYPE STRING,
PR3TL TYPE STRING,
PR3VK TYPE STRING,
PR3PR TYPE STRING,
PR4AK TYPE STRING,
PR4TL TYPE STRING,
PR4VK TYPE STRING,
PR4PR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_161Z_K_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_161Z_K_STR-MANDT sy-vline 
WA_V_161Z_K_STR-BSTYP sy-vline 
WA_V_161Z_K_STR-BSART sy-vline 
WA_V_161Z_K_STR-BATXT sy-vline 
WA_V_161Z_K_STR-PR1AK sy-vline 
WA_V_161Z_K_STR-PR1TL sy-vline 
WA_V_161Z_K_STR-PR1VK sy-vline 
WA_V_161Z_K_STR-PR1PR sy-vline 
WA_V_161Z_K_STR-PR2AK sy-vline 
WA_V_161Z_K_STR-PR2TL sy-vline 
WA_V_161Z_K_STR-PR2VK sy-vline 
WA_V_161Z_K_STR-PR2PR sy-vline 
WA_V_161Z_K_STR-PR3AK sy-vline 
WA_V_161Z_K_STR-PR3TL sy-vline 
WA_V_161Z_K_STR-PR3VK sy-vline 
WA_V_161Z_K_STR-PR3PR sy-vline 
WA_V_161Z_K_STR-PR4AK sy-vline 
WA_V_161Z_K_STR-PR4TL sy-vline 
WA_V_161Z_K_STR-PR4VK sy-vline 
WA_V_161Z_K_STR-PR4PR sy-vline      INTO ld_text SEPARATED BY SPACE.

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