ABAP Select data from SAP table V_T5DWU 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_T5DWU 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_T5DWU. 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_T5DWU 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_T5DWU TYPE STANDARD TABLE OF V_T5DWU,
      WA_V_T5DWU TYPE V_T5DWU,
      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_T5DWU> TYPE V_T5DWU.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T5DWU.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T5DWU
  INTO TABLE IT_V_T5DWU.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T5DWU
*  INTO TABLE @DATA(IT_V_T5DWU2).
*--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_T5DWU INDEX 1 INTO DATA(WA_V_T5DWU2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T5DWU ASSIGNING <V_T5DWU>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T5DWU>-MANDT = 1.
<V_T5DWU>-WMETH = 1.
<V_T5DWU>-ENDDA = 1.
<V_T5DWU>-BEGDA = 1.
<V_T5DWU>-REBE1 = 1.

ENDLOOP.

LOOP AT IT_V_T5DWU INTO WA_V_T5DWU.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T5DWU-REBE2, sy-vline,
  WA_V_T5DWU-REPRZ, sy-vline,
  WA_V_T5DWU-MIBE1, sy-vline,
  WA_V_T5DWU-MABE1, sy-vline,
  WA_V_T5DWU-MIBE2, sy-vline,
  WA_V_T5DWU-MABE2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T5DWU 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_T5DWU 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_T5DWU INTO WA_V_T5DWU.


*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_T5DWU_STR, 
MANDT TYPE STRING,
WMETH TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
REBE1 TYPE STRING,
REBE2 TYPE STRING,
REPRZ TYPE STRING,
MIBE1 TYPE STRING,
MABE1 TYPE STRING,
MIBE2 TYPE STRING,
MABE2 TYPE STRING,
MIPRZ TYPE STRING,
MAPRZ TYPE STRING,
WKUMU TYPE STRING,
WTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T5DWU_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_T5DWU_STR-MANDT sy-vline 
WA_V_T5DWU_STR-WMETH sy-vline 
WA_V_T5DWU_STR-ENDDA sy-vline 
WA_V_T5DWU_STR-BEGDA sy-vline 
WA_V_T5DWU_STR-REBE1 sy-vline 
WA_V_T5DWU_STR-REBE2 sy-vline 
WA_V_T5DWU_STR-REPRZ sy-vline 
WA_V_T5DWU_STR-MIBE1 sy-vline 
WA_V_T5DWU_STR-MABE1 sy-vline 
WA_V_T5DWU_STR-MIBE2 sy-vline 
WA_V_T5DWU_STR-MABE2 sy-vline 
WA_V_T5DWU_STR-MIPRZ sy-vline 
WA_V_T5DWU_STR-MAPRZ sy-vline 
WA_V_T5DWU_STR-WKUMU sy-vline 
WA_V_T5DWU_STR-WTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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