ABAP Select data from SAP table T5DWY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5DWY 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 T5DWY. 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 T5DWY 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_T5DWY TYPE STANDARD TABLE OF T5DWY,
      WA_T5DWY TYPE T5DWY,
      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: <T5DWY> TYPE T5DWY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5DWY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5DWY
  INTO TABLE IT_T5DWY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5DWY
*  INTO TABLE @DATA(IT_T5DWY2).
*--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_T5DWY INDEX 1 INTO DATA(WA_T5DWY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5DWY ASSIGNING <T5DWY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5DWY>-MANDT = 1.
<T5DWY>-FKTID = 1.
<T5DWY>-NUMID = 1.
<T5DWY>-FUNKT = 1.
<T5DWY>-VALPA = 1.

ENDLOOP.

LOOP AT IT_T5DWY INTO WA_T5DWY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5DWY-VALSA, sy-vline,
  WA_T5DWY-BABEI, sy-vline,
  WA_T5DWY-BAEIN, sy-vline,
  WA_T5DWY-TABBV, sy-vline,
  WA_T5DWY-MOBBV, sy-vline,
  WA_T5DWY-MOZBV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5DWY 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_T5DWY 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_T5DWY INTO WA_T5DWY.


*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_T5DWY_STR, 
MANDT TYPE STRING,
FKTID TYPE STRING,
NUMID TYPE STRING,
FUNKT TYPE STRING,
VALPA TYPE STRING,
VALSA TYPE STRING,
BABEI TYPE STRING,
BAEIN TYPE STRING,
TABBV TYPE STRING,
MOBBV TYPE STRING,
MOZBV TYPE STRING,
KZZWM TYPE STRING,
PVIEW TYPE STRING,
FDTEL TYPE STRING,
DYNBS TYPE STRING,
KZKAP TYPE STRING,
CLASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5DWY_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_T5DWY_STR-MANDT sy-vline 
WA_T5DWY_STR-FKTID sy-vline 
WA_T5DWY_STR-NUMID sy-vline 
WA_T5DWY_STR-FUNKT sy-vline 
WA_T5DWY_STR-VALPA sy-vline 
WA_T5DWY_STR-VALSA sy-vline 
WA_T5DWY_STR-BABEI sy-vline 
WA_T5DWY_STR-BAEIN sy-vline 
WA_T5DWY_STR-TABBV sy-vline 
WA_T5DWY_STR-MOBBV sy-vline 
WA_T5DWY_STR-MOZBV sy-vline 
WA_T5DWY_STR-KZZWM sy-vline 
WA_T5DWY_STR-PVIEW sy-vline 
WA_T5DWY_STR-FDTEL sy-vline 
WA_T5DWY_STR-DYNBS sy-vline 
WA_T5DWY_STR-KZKAP sy-vline 
WA_T5DWY_STR-CLASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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