ABAP Select data from SAP table COMT_PRODUCTUI_FRGTYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COMT_PRODUCTUI_FRGTYPE
*  INTO TABLE @DATA(IT_COMT_PRODUCTUI_FRGTYPE2).
*--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_COMT_PRODUCTUI_FRGTYPE INDEX 1 INTO DATA(WA_COMT_PRODUCTUI_FRGTYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COMT_PRODUCTUI_FRGTYPE>-FRGTYPE_GUID = 1.
<COMT_PRODUCTUI_FRGTYPE>-FRGTYPE_ID = 1.
<COMT_PRODUCTUI_FRGTYPE>-FRGTYPE_TAB = 1.
<COMT_PRODUCTUI_FRGTYPE>-FRGTYPE_DYNPRO = 1.
<COMT_PRODUCTUI_FRGTYPE>-FRGTYPE_PROGRAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COMT_PRODUCTUI_FRGTYPE-FUNC_CREATE, sy-vline,
  WA_COMT_PRODUCTUI_FRGTYPE-FUNC_CHANGE, sy-vline,
  WA_COMT_PRODUCTUI_FRGTYPE-FUNC_INIT, sy-vline,
  WA_COMT_PRODUCTUI_FRGTYPE-FUNC_SAVE, sy-vline,
  WA_COMT_PRODUCTUI_FRGTYPE-FUNC_FREE, sy-vline,
  WA_COMT_PRODUCTUI_FRGTYPE-FUNC_SAVE_LOCAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COMT_PRODUCTUI_FRGTYPE 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_COMT_PRODUCTUI_FRGTYPE 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_COMT_PRODUCTUI_FRGTYPE INTO WA_COMT_PRODUCTUI_FRGTYPE.


*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_COMT_PRODUCTUI_FRGTYPE_STR, 
FRGTYPE_GUID TYPE STRING,
FRGTYPE_ID TYPE STRING,
FRGTYPE_TAB TYPE STRING,
FRGTYPE_DYNPRO TYPE STRING,
FRGTYPE_PROGRAM TYPE STRING,
FUNC_CREATE TYPE STRING,
FUNC_CHANGE TYPE STRING,
FUNC_INIT TYPE STRING,
FUNC_SAVE TYPE STRING,
FUNC_FREE TYPE STRING,
FUNC_SAVE_LOCAL TYPE STRING,
FUNC_CHECK TYPE STRING,
FUNC_READ TYPE STRING,
FUNC_READ_LOCAL TYPE STRING,
FUNC_READ_MULTI TYPE STRING,
FUNC_MAINT_READ TYPE STRING,
FUNC_MAINT_MULTI TYPE STRING,
FUNC_MAINT_UPD TYPE STRING,
FUNC_MAINT_READP TYPE STRING,
FUNC_GET TYPE STRING,
FUNC_GET_HISTORY TYPE STRING,
FUNC_PBO TYPE STRING,
FUNC_PAI TYPE STRING,
FUNC_READ_TFW TYPE STRING,
GENFLAG TYPE STRING,
BUS_OBJTYPE TYPE STRING,
ORG_UNIT TYPE STRING,
PROD_COMP_TYPE TYPE STRING,
STATUS_OBJECT TYPE STRING,
OBJECT_FAMILY TYPE STRING,
NON_ASSIGNABLE TYPE STRING,
CALLORDER_SAVEL TYPE STRING,
CLEARING_NODEKEY TYPE STRING,
FRGTYPE_TEXT TYPE STRING,
FRGTYPE_TXT_LARG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COMT_PRODUCTUI_FRGTYPE_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_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_GUID sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_ID sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_TAB sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_DYNPRO sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_PROGRAM sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_CREATE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_CHANGE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_INIT sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_SAVE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_FREE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_SAVE_LOCAL sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_CHECK sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_READ sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_READ_LOCAL sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_READ_MULTI sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_MAINT_READ sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_MAINT_MULTI sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_MAINT_UPD sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_MAINT_READP sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_GET sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_GET_HISTORY sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_PBO sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_PAI sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FUNC_READ_TFW sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-GENFLAG sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-BUS_OBJTYPE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-ORG_UNIT sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-PROD_COMP_TYPE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-STATUS_OBJECT sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-OBJECT_FAMILY sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-NON_ASSIGNABLE sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-CALLORDER_SAVEL sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-CLEARING_NODEKEY sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_TEXT sy-vline 
WA_COMT_PRODUCTUI_FRGTYPE_STR-FRGTYPE_TXT_LARG sy-vline      INTO ld_text SEPARATED BY SPACE.

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