ABAP Select data from SAP table EMUTILIZE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EMUTILIZE
*  INTO TABLE @DATA(IT_EMUTILIZE2).
*--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_EMUTILIZE INDEX 1 INTO DATA(WA_EMUTILIZE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EMUTILIZE>-SRVNAME = 1.
<EMUTILIZE>-BLCKSIZEKB = 1.
<EMUTILIZE>-SLOTSEXIST = 1.
<EMUTILIZE>-SLOTSUSED = 1.
<EMUTILIZE>-SLOTSALLOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EMUTILIZE-SLOSTATACH, sy-vline,
  WA_EMUTILIZE-HEAPUSESUM, sy-vline,
  WA_EMUTILIZE-PRIVWPNO, sy-vline,
  WA_EMUTILIZE-EMSLOTSUSE, sy-vline,
  WA_EMUTILIZE-EMSLOTPEAK, sy-vline,
  WA_EMUTILIZE-EMSLOTSTOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EMUTILIZE 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_EMUTILIZE 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_EMUTILIZE INTO WA_EMUTILIZE.


*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_EMUTILIZE_STR, 
SRVNAME TYPE STRING,
BLCKSIZEKB TYPE STRING,
SLOTSEXIST TYPE STRING,
SLOTSUSED TYPE STRING,
SLOTSALLOC TYPE STRING,
SLOSTATACH TYPE STRING,
HEAPUSESUM TYPE STRING,
PRIVWPNO TYPE STRING,
EMSLOTSUSE TYPE STRING,
EMSLOTPEAK TYPE STRING,
EMSLOTSTOT TYPE STRING,
HEAPSUMKB TYPE STRING,
HEAPSMPEAK TYPE STRING,
WPDIARESTR TYPE STRING,
WPNODIARES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EMUTILIZE_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_EMUTILIZE_STR-SRVNAME sy-vline 
WA_EMUTILIZE_STR-BLCKSIZEKB sy-vline 
WA_EMUTILIZE_STR-SLOTSEXIST sy-vline 
WA_EMUTILIZE_STR-SLOTSUSED sy-vline 
WA_EMUTILIZE_STR-SLOTSALLOC sy-vline 
WA_EMUTILIZE_STR-SLOSTATACH sy-vline 
WA_EMUTILIZE_STR-HEAPUSESUM sy-vline 
WA_EMUTILIZE_STR-PRIVWPNO sy-vline 
WA_EMUTILIZE_STR-EMSLOTSUSE sy-vline 
WA_EMUTILIZE_STR-EMSLOTPEAK sy-vline 
WA_EMUTILIZE_STR-EMSLOTSTOT sy-vline 
WA_EMUTILIZE_STR-HEAPSUMKB sy-vline 
WA_EMUTILIZE_STR-HEAPSMPEAK sy-vline 
WA_EMUTILIZE_STR-WPDIARESTR sy-vline 
WA_EMUTILIZE_STR-WPNODIARES sy-vline      INTO ld_text SEPARATED BY SPACE.

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