ABAP Select data from SAP table T5DF3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T5DF3 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 T5DF3. 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 T5DF3 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_T5DF3 TYPE STANDARD TABLE OF T5DF3,
      WA_T5DF3 TYPE T5DF3,
      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: <T5DF3> TYPE T5DF3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T5DF3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T5DF3
  INTO TABLE IT_T5DF3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T5DF3
*  INTO TABLE @DATA(IT_T5DF32).
*--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_T5DF3 INDEX 1 INTO DATA(WA_T5DF32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T5DF3 ASSIGNING <T5DF3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T5DF3>-MANDT = 1.
<T5DF3>-BEWID = 1.
<T5DF3>-WINDOW = 1.
<T5DF3>-ELEMENT = 1.
<T5DF3>-PSEQ = 1.

ENDLOOP.

LOOP AT IT_T5DF3 INTO WA_T5DF3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T5DF3-BTABL, sy-vline,
  WA_T5DF3-BEWLA, sy-vline,
  WA_T5DF3-AREA, sy-vline,
  WA_T5DF3-RECS, sy-vline,
  WA_T5DF3-COLS, sy-vline,
  WA_T5DF3-CPFLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T5DF3 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_T5DF3 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_T5DF3 INTO WA_T5DF3.


*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_T5DF3_STR, 
MANDT TYPE STRING,
BEWID TYPE STRING,
WINDOW TYPE STRING,
ELEMENT TYPE STRING,
PSEQ TYPE STRING,
BTABL TYPE STRING,
BEWLA TYPE STRING,
AREA TYPE STRING,
RECS TYPE STRING,
COLS TYPE STRING,
CPFLD TYPE STRING,
CPOPR TYPE STRING,
CPTYP TYPE STRING,
CPVAL TYPE STRING,
MOLGA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T5DF3_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_T5DF3_STR-MANDT sy-vline 
WA_T5DF3_STR-BEWID sy-vline 
WA_T5DF3_STR-WINDOW sy-vline 
WA_T5DF3_STR-ELEMENT sy-vline 
WA_T5DF3_STR-PSEQ sy-vline 
WA_T5DF3_STR-BTABL sy-vline 
WA_T5DF3_STR-BEWLA sy-vline 
WA_T5DF3_STR-AREA sy-vline 
WA_T5DF3_STR-RECS sy-vline 
WA_T5DF3_STR-COLS sy-vline 
WA_T5DF3_STR-CPFLD sy-vline 
WA_T5DF3_STR-CPOPR sy-vline 
WA_T5DF3_STR-CPTYP sy-vline 
WA_T5DF3_STR-CPVAL sy-vline 
WA_T5DF3_STR-MOLGA sy-vline      INTO ld_text SEPARATED BY SPACE.

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