ABAP Select data from SAP table EDESKIFINSTANCES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EDESKIFINSTANCES
*  INTO TABLE @DATA(IT_EDESKIFINSTANCES2).
*--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_EDESKIFINSTANCES INDEX 1 INTO DATA(WA_EDESKIFINSTANCES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EDESKIFINSTANCES>-ID = 1.
<EDESKIFINSTANCES>-COUNTER = 1.
<EDESKIFINSTANCES>-INSTBOMID = 1.
<EDESKIFINSTANCES>-LOCOX = 1.
<EDESKIFINSTANCES>-LOCOY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EDESKIFINSTANCES-LOCOZ, sy-vline,
  WA_EDESKIFINSTANCES-AXIS1X, sy-vline,
  WA_EDESKIFINSTANCES-AXIS1Y, sy-vline,
  WA_EDESKIFINSTANCES-AXIS1Z, sy-vline,
  WA_EDESKIFINSTANCES-AXIS2X, sy-vline,
  WA_EDESKIFINSTANCES-AXIS2Y, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EDESKIFINSTANCES 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_EDESKIFINSTANCES 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_EDESKIFINSTANCES INTO WA_EDESKIFINSTANCES.


*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_EDESKIFINSTANCES_STR, 
ID TYPE STRING,
COUNTER TYPE STRING,
INSTBOMID TYPE STRING,
LOCOX TYPE STRING,
LOCOY TYPE STRING,
LOCOZ TYPE STRING,
AXIS1X TYPE STRING,
AXIS1Y TYPE STRING,
AXIS1Z TYPE STRING,
AXIS2X TYPE STRING,
AXIS2Y TYPE STRING,
AXIS2Z TYPE STRING,
AXIS3X TYPE STRING,
AXIS3Y TYPE STRING,
AXIS3Z TYPE STRING,
SCALE TYPE STRING,
XMIN TYPE STRING,
YMIN TYPE STRING,
ZMIN TYPE STRING,
XMAX TYPE STRING,
YMAX TYPE STRING,
ZMAX TYPE STRING,
DOCID TYPE STRING,
DOCPARENTID TYPE STRING,
DOCTYPE TYPE STRING,
DOCNUMBER TYPE STRING,
DOCVERSION TYPE STRING,
DOCPART TYPE STRING,
INTBOMID TYPE STRING,
ISCREATED TYPE STRING,
ISDELETED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EDESKIFINSTANCES_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_EDESKIFINSTANCES_STR-ID sy-vline 
WA_EDESKIFINSTANCES_STR-COUNTER sy-vline 
WA_EDESKIFINSTANCES_STR-INSTBOMID sy-vline 
WA_EDESKIFINSTANCES_STR-LOCOX sy-vline 
WA_EDESKIFINSTANCES_STR-LOCOY sy-vline 
WA_EDESKIFINSTANCES_STR-LOCOZ sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS1X sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS1Y sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS1Z sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS2X sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS2Y sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS2Z sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS3X sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS3Y sy-vline 
WA_EDESKIFINSTANCES_STR-AXIS3Z sy-vline 
WA_EDESKIFINSTANCES_STR-SCALE sy-vline 
WA_EDESKIFINSTANCES_STR-XMIN sy-vline 
WA_EDESKIFINSTANCES_STR-YMIN sy-vline 
WA_EDESKIFINSTANCES_STR-ZMIN sy-vline 
WA_EDESKIFINSTANCES_STR-XMAX sy-vline 
WA_EDESKIFINSTANCES_STR-YMAX sy-vline 
WA_EDESKIFINSTANCES_STR-ZMAX sy-vline 
WA_EDESKIFINSTANCES_STR-DOCID sy-vline 
WA_EDESKIFINSTANCES_STR-DOCPARENTID sy-vline 
WA_EDESKIFINSTANCES_STR-DOCTYPE sy-vline 
WA_EDESKIFINSTANCES_STR-DOCNUMBER sy-vline 
WA_EDESKIFINSTANCES_STR-DOCVERSION sy-vline 
WA_EDESKIFINSTANCES_STR-DOCPART sy-vline 
WA_EDESKIFINSTANCES_STR-INTBOMID sy-vline 
WA_EDESKIFINSTANCES_STR-ISCREATED sy-vline 
WA_EDESKIFINSTANCES_STR-ISDELETED sy-vline      INTO ld_text SEPARATED BY SPACE.

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