ABAP Select data from SAP table EDESKIFEDESKIFFILE3S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EDESKIFEDESKIFFILE3S 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 EDESKIFEDESKIFFILE3S. 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 EDESKIFEDESKIFFILE3S 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_EDESKIFEDESKIFFILE3S TYPE STANDARD TABLE OF EDESKIFEDESKIFFILE3S,
      WA_EDESKIFEDESKIFFILE3S TYPE EDESKIFEDESKIFFILE3S,
      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: <EDESKIFEDESKIFFILE3S> TYPE EDESKIFEDESKIFFILE3S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EDESKIFEDESKIFFILE3S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EDESKIFEDESKIFFILE3S
  INTO TABLE IT_EDESKIFEDESKIFFILE3S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDESKIFEDESKIFFILE3S
*  INTO TABLE @DATA(IT_EDESKIFEDESKIFFILE3S2).
*--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_EDESKIFEDESKIFFILE3S INDEX 1 INTO DATA(WA_EDESKIFEDESKIFFILE3S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EDESKIFEDESKIFFILE3S ASSIGNING <EDESKIFEDESKIFFILE3S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDESKIFEDESKIFFILE3S>-CONTROLLER = 1.
<EDESKIFEDESKIFFILE3S>-DOCTYPE = 1.
<EDESKIFEDESKIFFILE3S>-DOCNUMBER = 1.
<EDESKIFEDESKIFFILE3S>-DOCVERSION = 1.
<EDESKIFEDESKIFFILE3S>-DOCPART = 1.

ENDLOOP.

LOOP AT IT_EDESKIFEDESKIFFILE3S INTO WA_EDESKIFEDESKIFFILE3S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDESKIFEDESKIFFILE3S-DOCPATH, sy-vline,
  WA_EDESKIFEDESKIFFILE3S-DOCFILENAME, sy-vline,
  WA_EDESKIFEDESKIFFILE3S-MIMETYPE, sy-vline,
  WA_EDESKIFEDESKIFFILE3S-COMPONENTID, sy-vline,
  WA_EDESKIFEDESKIFFILE3S-URI, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_EDESKIFEDESKIFFILE3S 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_EDESKIFEDESKIFFILE3S 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_EDESKIFEDESKIFFILE3S INTO WA_EDESKIFEDESKIFFILE3S.


*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_EDESKIFEDESKIFFILE3S_STR, 
CONTROLLER TYPE STRING,
DOCTYPE TYPE STRING,
DOCNUMBER TYPE STRING,
DOCVERSION TYPE STRING,
DOCPART TYPE STRING,
DOCPATH TYPE STRING,
DOCFILENAME TYPE STRING,
MIMETYPE TYPE STRING,
COMPONENTID TYPE STRING,
URI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDESKIFEDESKIFFILE3S_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_EDESKIFEDESKIFFILE3S_STR-CONTROLLER sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-DOCTYPE sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-DOCNUMBER sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-DOCVERSION sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-DOCPART sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-DOCPATH sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-DOCFILENAME sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-MIMETYPE sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-COMPONENTID sy-vline 
WA_EDESKIFEDESKIFFILE3S_STR-URI sy-vline      INTO ld_text SEPARATED BY SPACE.

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