ABAP Select data from SAP table ITORROOTDSACANA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITORROOTDSACANA
*  INTO TABLE @DATA(IT_ITORROOTDSACANA2).
*--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_ITORROOTDSACANA INDEX 1 INTO DATA(WA_ITORROOTDSACANA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITORROOTDSACANA>-MANDT = 1.
<ITORROOTDSACANA>-TRANSPORTATIONORDERITEMUUID = 1.
<ITORROOTDSACANA>-TRANSPORTATIONORDERUUID = 1.
<ITORROOTDSACANA>-TRANSPORDITEM = 1.
<ITORROOTDSACANA>-TRANSPORDITEMDESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITORROOTDSACANA-TRANSPORDITEMTYPE, sy-vline,
  WA_ITORROOTDSACANA-TRANSPORDITEMCATEGORY, sy-vline,
  WA_ITORROOTDSACANA-TRANSPORTATIONORDER, sy-vline,
  WA_ITORROOTDSACANA-TRANSPORTATIONORDERCATEGORY, sy-vline,
  WA_ITORROOTDSACANA-NUMBEROFTRANSPORTATIONORDERS, sy-vline,
  WA_ITORROOTDSACANA-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITORROOTDSACANA 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_ITORROOTDSACANA 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_ITORROOTDSACANA INTO WA_ITORROOTDSACANA.


*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 TRANSPORDITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITORROOTDSACANA-TRANSPORDITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITORROOTDSACANA-TRANSPORDITEM.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field TRANSPORDITEMNUMBEROFCTNSUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ITORROOTDSACANA-TRANSPORDITEMNUMBEROFCTNSUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITORROOTDSACANA-TRANSPORDITEMNUMBEROFCTNSUNIT.
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_ITORROOTDSACANA_STR, 
MANDT TYPE STRING,
TRANSPORTATIONORDERITEMUUID TYPE STRING,
TRANSPORTATIONORDERUUID TYPE STRING,
TRANSPORDITEM TYPE STRING,
TRANSPORDITEMDESC TYPE STRING,
TRANSPORDITEMTYPE TYPE STRING,
TRANSPORDITEMCATEGORY TYPE STRING,
TRANSPORTATIONORDER TYPE STRING,
TRANSPORTATIONORDERCATEGORY TYPE STRING,
NUMBEROFTRANSPORTATIONORDERS TYPE STRING,
CREATEDBYUSER TYPE STRING,
TRANSPORDCREATIONDATETIME TYPE STRING,
TRANSPORDCREATIONDATE TYPE STRING,
TRANSPORDITEMSRCELOCATION TYPE STRING,
TRANSPORDITEMSRCELOCATIONTYPE TYPE STRING,
TRANSPORDITEMDESTLOCATION TYPE STRING,
TRANSPORDITEMDESTLOCATIONTYPE TYPE STRING,
TRANSPORTATIONMODE TYPE STRING,
TRANSPORTATIONMODECATEGORY TYPE STRING,
TRANSPORDITEMGROSSWEIGHT TYPE STRING,
TRANSPORDITEMGROSSWEIGHTUNIT TYPE STRING,
TRANSPORDITEMGROSSVOLUME TYPE STRING,
TRANSPORDITEMGROSSVOLUMEUNIT TYPE STRING,
TRANSPORDITEMQUANTITY TYPE STRING,
TRANSPORDITEMQUANTITYUNIT TYPE STRING,
TRANSPORDITEMNUMBEROFCTNS TYPE STRING,
TRANSPORDITEMNUMBEROFCTNSUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITORROOTDSACANA_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_ITORROOTDSACANA_STR-MANDT sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORTATIONORDERITEMUUID sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORTATIONORDERUUID sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEM sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMDESC sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMTYPE sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMCATEGORY sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORTATIONORDER sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORTATIONORDERCATEGORY sy-vline 
WA_ITORROOTDSACANA_STR-NUMBEROFTRANSPORTATIONORDERS sy-vline 
WA_ITORROOTDSACANA_STR-CREATEDBYUSER sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDCREATIONDATETIME sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDCREATIONDATE sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMSRCELOCATION sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMSRCELOCATIONTYPE sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMDESTLOCATION sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMDESTLOCATIONTYPE sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORTATIONMODE sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORTATIONMODECATEGORY sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMGROSSWEIGHT sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMGROSSWEIGHTUNIT sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMGROSSVOLUME sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMGROSSVOLUMEUNIT sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMQUANTITY sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMQUANTITYUNIT sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMNUMBEROFCTNS sy-vline 
WA_ITORROOTDSACANA_STR-TRANSPORDITEMNUMBEROFCTNSUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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