ABAP Select data from SAP table TDS_DELIVERIES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_DELIVERIES
*  INTO TABLE @DATA(IT_TDS_DELIVERIES2).
*--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_TDS_DELIVERIES INDEX 1 INTO DATA(WA_TDS_DELIVERIES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_DELIVERIES>-VBELN = 1.
<TDS_DELIVERIES>-ERNAM = 1.
<TDS_DELIVERIES>-ERDAT = 1.
<TDS_DELIVERIES>-VSTEL = 1.
<TDS_DELIVERIES>-LFART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_DELIVERIES-LFDAT, sy-vline,
  WA_TDS_DELIVERIES-INCO1, sy-vline,
  WA_TDS_DELIVERIES-INCO2, sy-vline,
  WA_TDS_DELIVERIES-ROUTE, sy-vline,
  WA_TDS_DELIVERIES-VBTYP, sy-vline,
  WA_TDS_DELIVERIES-VKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_DELIVERIES 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_TDS_DELIVERIES 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_TDS_DELIVERIES INTO WA_TDS_DELIVERIES.


*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 ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_DELIVERIES-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_DELIVERIES-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_DELIVERIES-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_DELIVERIES-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_DELIVERIES-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_DELIVERIES-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field ZPAVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_TDS_DELIVERIES-ZPAVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_DELIVERIES-ZPAVW.
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_TDS_DELIVERIES_STR, 
VBELN TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
VSTEL TYPE STRING,
LFART TYPE STRING,
LFDAT TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
ROUTE TYPE STRING,
VBTYP TYPE STRING,
VKORG TYPE STRING,
KUNWE TYPE STRING,
KUNAG TYPE STRING,
VKBUR TYPE STRING,
LPRIO TYPE STRING,
LGNUM TYPE STRING,
VSBED TYPE STRING,
WBSTK TYPE STRING,
FKSTK TYPE STRING,
KOSTK TYPE STRING,
LVSTK TYPE STRING,
GBSTK TYPE STRING,
ZPAVW TYPE STRING,
TRATY TYPE STRING,
TRAID TYPE STRING,
PARVW_T TYPE STRING,
ZPERS_T TYPE STRING,
ZPERS TYPE STRING,
VKBUR_T TYPE STRING,
WBSTK_T TYPE STRING,
FKSTK_T TYPE STRING,
KOSTK_T TYPE STRING,
LVSTK_T TYPE STRING,
GBSTK_T TYPE STRING,
VKORG_T TYPE STRING,
KUNWE_T TYPE STRING,
KUNAG_T TYPE STRING,
VBTYP_T TYPE STRING,
LFART_T TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_DELIVERIES_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_TDS_DELIVERIES_STR-VBELN sy-vline 
WA_TDS_DELIVERIES_STR-ERNAM sy-vline 
WA_TDS_DELIVERIES_STR-ERDAT sy-vline 
WA_TDS_DELIVERIES_STR-VSTEL sy-vline 
WA_TDS_DELIVERIES_STR-LFART sy-vline 
WA_TDS_DELIVERIES_STR-LFDAT sy-vline 
WA_TDS_DELIVERIES_STR-INCO1 sy-vline 
WA_TDS_DELIVERIES_STR-INCO2 sy-vline 
WA_TDS_DELIVERIES_STR-ROUTE sy-vline 
WA_TDS_DELIVERIES_STR-VBTYP sy-vline 
WA_TDS_DELIVERIES_STR-VKORG sy-vline 
WA_TDS_DELIVERIES_STR-KUNWE sy-vline 
WA_TDS_DELIVERIES_STR-KUNAG sy-vline 
WA_TDS_DELIVERIES_STR-VKBUR sy-vline 
WA_TDS_DELIVERIES_STR-LPRIO sy-vline 
WA_TDS_DELIVERIES_STR-LGNUM sy-vline 
WA_TDS_DELIVERIES_STR-VSBED sy-vline 
WA_TDS_DELIVERIES_STR-WBSTK sy-vline 
WA_TDS_DELIVERIES_STR-FKSTK sy-vline 
WA_TDS_DELIVERIES_STR-KOSTK sy-vline 
WA_TDS_DELIVERIES_STR-LVSTK sy-vline 
WA_TDS_DELIVERIES_STR-GBSTK sy-vline 
WA_TDS_DELIVERIES_STR-ZPAVW sy-vline 
WA_TDS_DELIVERIES_STR-TRATY sy-vline 
WA_TDS_DELIVERIES_STR-TRAID sy-vline 
WA_TDS_DELIVERIES_STR-PARVW_T sy-vline 
WA_TDS_DELIVERIES_STR-ZPERS_T sy-vline 
WA_TDS_DELIVERIES_STR-ZPERS sy-vline 
WA_TDS_DELIVERIES_STR-VKBUR_T sy-vline 
WA_TDS_DELIVERIES_STR-WBSTK_T sy-vline 
WA_TDS_DELIVERIES_STR-FKSTK_T sy-vline 
WA_TDS_DELIVERIES_STR-KOSTK_T sy-vline 
WA_TDS_DELIVERIES_STR-LVSTK_T sy-vline 
WA_TDS_DELIVERIES_STR-GBSTK_T sy-vline 
WA_TDS_DELIVERIES_STR-VKORG_T sy-vline 
WA_TDS_DELIVERIES_STR-KUNWE_T sy-vline 
WA_TDS_DELIVERIES_STR-KUNAG_T sy-vline 
WA_TDS_DELIVERIES_STR-VBTYP_T sy-vline 
WA_TDS_DELIVERIES_STR-LFART_T sy-vline      INTO ld_text SEPARATED BY SPACE.

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