ABAP Select data from SAP table V_T356 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T356 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_T356. 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_T356 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_T356 TYPE STANDARD TABLE OF V_T356,
      WA_V_T356 TYPE V_T356,
      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_T356> TYPE V_T356.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T356.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T356
  INTO TABLE IT_V_T356.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T356
*  INTO TABLE @DATA(IT_V_T3562).
*--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_T356 INDEX 1 INTO DATA(WA_V_T3562).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T356 ASSIGNING <V_T356>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T356>-MANDT = 1.
<V_T356>-ARTPR = 1.
<V_T356>-PRIOK = 1.
<V_T356>-ARTPRX = 1.
<V_T356>-TAGBN = 1.

ENDLOOP.

LOOP AT IT_V_T356 INTO WA_V_T356.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T356-TAGEN, sy-vline,
  WA_V_T356-PRIOKX, sy-vline,
  WA_V_T356-EHTBG, sy-vline,
  WA_V_T356-EHTEN, sy-vline,
  WA_V_T356-PRIOCC, sy-vline,
  WA_V_T356-LACD_UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T356 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_T356 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_T356 INTO WA_V_T356.


*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 EHTBG
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_T356-EHTBG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T356-EHTBG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EHTEN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_T356-EHTEN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T356-EHTEN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LACD_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_T356-LACD_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_T356-LACD_UOM.
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_V_T356_STR, 
MANDT TYPE STRING,
ARTPR TYPE STRING,
PRIOK TYPE STRING,
ARTPRX TYPE STRING,
TAGBN TYPE STRING,
TAGEN TYPE STRING,
PRIOKX TYPE STRING,
EHTBG TYPE STRING,
EHTEN TYPE STRING,
PRIOCC TYPE STRING,
LACD_UNIT TYPE STRING,
LACD_UOM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T356_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_T356_STR-MANDT sy-vline 
WA_V_T356_STR-ARTPR sy-vline 
WA_V_T356_STR-PRIOK sy-vline 
WA_V_T356_STR-ARTPRX sy-vline 
WA_V_T356_STR-TAGBN sy-vline 
WA_V_T356_STR-TAGEN sy-vline 
WA_V_T356_STR-PRIOKX sy-vline 
WA_V_T356_STR-EHTBG sy-vline 
WA_V_T356_STR-EHTEN sy-vline 
WA_V_T356_STR-PRIOCC sy-vline 
WA_V_T356_STR-LACD_UNIT sy-vline 
WA_V_T356_STR-LACD_UOM sy-vline      INTO ld_text SEPARATED BY SPACE.

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