ABAP Select data from SAP table EDESK_WIZARD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDESK_WIZARD
*  INTO TABLE @DATA(IT_EDESK_WIZARD2).
*--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_EDESK_WIZARD INDEX 1 INTO DATA(WA_EDESK_WIZARD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDESK_WIZARD>-OBJECT_ID = 1.
<EDESK_WIZARD>-GUID_IDENT = 1.
<EDESK_WIZARD>-GUID_PARENT = 1.
<EDESK_WIZARD>-DOCUMENTID_EXT = 1.
<EDESK_WIZARD>-DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDESK_WIZARD-USERNAME, sy-vline,
  WA_EDESK_WIZARD-STATUSEXTERN, sy-vline,
  WA_EDESK_WIZARD-DOCFILE, sy-vline,
  WA_EDESK_WIZARD-CHECKEDIN, sy-vline,
  WA_EDESK_WIZARD-MESSAGE_TYPE, sy-vline,
  WA_EDESK_WIZARD-MESSAGE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDESK_WIZARD 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_EDESK_WIZARD 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_EDESK_WIZARD INTO WA_EDESK_WIZARD.


*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 DOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EDESK_WIZARD-DOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EDESK_WIZARD-DOCUMENTNUMBER.
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_EDESK_WIZARD_STR, 
OBJECT_ID TYPE STRING,
GUID_IDENT TYPE STRING,
GUID_PARENT TYPE STRING,
DOCUMENTID_EXT TYPE STRING,
DESCRIPTION TYPE STRING,
USERNAME TYPE STRING,
STATUSEXTERN TYPE STRING,
DOCFILE TYPE STRING,
CHECKEDIN TYPE STRING,
MESSAGE_TYPE TYPE STRING,
MESSAGE_ID TYPE STRING,
MESSAGE_NR TYPE STRING,
MESSAGE_V1 TYPE STRING,
WIZARD_ID TYPE STRING,
SOLUTION TYPE STRING,
ACTION TYPE STRING,
DEF_ACTION TYPE STRING,
OBJECT_TYPE TYPE STRING,
IS_SELECTED TYPE STRING,
HEADOFSTRUCTURE TYPE STRING,
IS_CORRUPT TYPE STRING,
DOCUMENTPART TYPE STRING,
DOCUMENTVERSION TYPE STRING,
DOCUMENTNUMBER TYPE STRING,
DOCUMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDESK_WIZARD_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_EDESK_WIZARD_STR-OBJECT_ID sy-vline 
WA_EDESK_WIZARD_STR-GUID_IDENT sy-vline 
WA_EDESK_WIZARD_STR-GUID_PARENT sy-vline 
WA_EDESK_WIZARD_STR-DOCUMENTID_EXT sy-vline 
WA_EDESK_WIZARD_STR-DESCRIPTION sy-vline 
WA_EDESK_WIZARD_STR-USERNAME sy-vline 
WA_EDESK_WIZARD_STR-STATUSEXTERN sy-vline 
WA_EDESK_WIZARD_STR-DOCFILE sy-vline 
WA_EDESK_WIZARD_STR-CHECKEDIN sy-vline 
WA_EDESK_WIZARD_STR-MESSAGE_TYPE sy-vline 
WA_EDESK_WIZARD_STR-MESSAGE_ID sy-vline 
WA_EDESK_WIZARD_STR-MESSAGE_NR sy-vline 
WA_EDESK_WIZARD_STR-MESSAGE_V1 sy-vline 
WA_EDESK_WIZARD_STR-WIZARD_ID sy-vline 
WA_EDESK_WIZARD_STR-SOLUTION sy-vline 
WA_EDESK_WIZARD_STR-ACTION sy-vline 
WA_EDESK_WIZARD_STR-DEF_ACTION sy-vline 
WA_EDESK_WIZARD_STR-OBJECT_TYPE sy-vline 
WA_EDESK_WIZARD_STR-IS_SELECTED sy-vline 
WA_EDESK_WIZARD_STR-HEADOFSTRUCTURE sy-vline 
WA_EDESK_WIZARD_STR-IS_CORRUPT sy-vline 
WA_EDESK_WIZARD_STR-DOCUMENTPART sy-vline 
WA_EDESK_WIZARD_STR-DOCUMENTVERSION sy-vline 
WA_EDESK_WIZARD_STR-DOCUMENTNUMBER sy-vline 
WA_EDESK_WIZARD_STR-DOCUMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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