ABAP Select data from SAP table COD_S_INSTL_DEVICE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COD_S_INSTL_DEVICE
*  INTO TABLE @DATA(IT_COD_S_INSTL_DEVICE2).
*--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_COD_S_INSTL_DEVICE INDEX 1 INTO DATA(WA_COD_S_INSTL_DEVICE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COD_S_INSTL_DEVICE>-GERAET = 1.
<COD_S_INSTL_DEVICE>-MATNR = 1.
<COD_S_INSTL_DEVICE>-EQUNR = 1.
<COD_S_INSTL_DEVICE>-INT_UI = 1.
<COD_S_INSTL_DEVICE>-EXT_UI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COD_S_INSTL_DEVICE-MORE_UI, sy-vline,
  WA_COD_S_INSTL_DEVICE-SPARTE, sy-vline,
  WA_COD_S_INSTL_DEVICE-SPARTYP, sy-vline,
  WA_COD_S_INSTL_DEVICE-MARK, sy-vline,
  WA_COD_S_INSTL_DEVICE-ERLAUBT, sy-vline,
  WA_COD_S_INSTL_DEVICE-ANLAGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COD_S_INSTL_DEVICE 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_COD_S_INSTL_DEVICE 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_COD_S_INSTL_DEVICE INTO WA_COD_S_INSTL_DEVICE.


*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_COD_S_INSTL_DEVICE_STR, 
GERAET TYPE STRING,
MATNR TYPE STRING,
EQUNR TYPE STRING,
INT_UI TYPE STRING,
EXT_UI TYPE STRING,
MORE_UI TYPE STRING,
SPARTE TYPE STRING,
SPARTYP TYPE STRING,
MARK TYPE STRING,
ERLAUBT TYPE STRING,
ANLAGE TYPE STRING,
LOGIKNR TYPE STRING,
BIS TYPE STRING,
AB TYPE STRING,
PREISKLA TYPE STRING,
GVERRECH TYPE STRING,
TARIFART TYPE STRING,
KONDIGR TYPE STRING,
DEVICE_NBR TYPE STRING,
PRODUCTLINKEX TYPE STRING,
PRODUCTICON TYPE STRING,
REGISTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COD_S_INSTL_DEVICE_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_COD_S_INSTL_DEVICE_STR-GERAET sy-vline 
WA_COD_S_INSTL_DEVICE_STR-MATNR sy-vline 
WA_COD_S_INSTL_DEVICE_STR-EQUNR sy-vline 
WA_COD_S_INSTL_DEVICE_STR-INT_UI sy-vline 
WA_COD_S_INSTL_DEVICE_STR-EXT_UI sy-vline 
WA_COD_S_INSTL_DEVICE_STR-MORE_UI sy-vline 
WA_COD_S_INSTL_DEVICE_STR-SPARTE sy-vline 
WA_COD_S_INSTL_DEVICE_STR-SPARTYP sy-vline 
WA_COD_S_INSTL_DEVICE_STR-MARK sy-vline 
WA_COD_S_INSTL_DEVICE_STR-ERLAUBT sy-vline 
WA_COD_S_INSTL_DEVICE_STR-ANLAGE sy-vline 
WA_COD_S_INSTL_DEVICE_STR-LOGIKNR sy-vline 
WA_COD_S_INSTL_DEVICE_STR-BIS sy-vline 
WA_COD_S_INSTL_DEVICE_STR-AB sy-vline 
WA_COD_S_INSTL_DEVICE_STR-PREISKLA sy-vline 
WA_COD_S_INSTL_DEVICE_STR-GVERRECH sy-vline 
WA_COD_S_INSTL_DEVICE_STR-TARIFART sy-vline 
WA_COD_S_INSTL_DEVICE_STR-KONDIGR sy-vline 
WA_COD_S_INSTL_DEVICE_STR-DEVICE_NBR sy-vline 
WA_COD_S_INSTL_DEVICE_STR-PRODUCTLINKEX sy-vline 
WA_COD_S_INSTL_DEVICE_STR-PRODUCTICON sy-vline 
WA_COD_S_INSTL_DEVICE_STR-REGISTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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