ABAP Select data from SAP table ITECHOBJWRQVW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITECHOBJWRQVW
*  INTO TABLE @DATA(IT_ITECHOBJWRQVW2).
*--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_ITECHOBJWRQVW INDEX 1 INTO DATA(WA_ITECHOBJWRQVW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITECHOBJWRQVW>-MANDT = 1.
<ITECHOBJWRQVW>-TECHNICALOBJECT = 1.
<ITECHOBJWRQVW>-TECHOBJISEQUIPORFUNCNLLOC = 1.
<ITECHOBJWRQVW>-TECHNICALOBJECTLABEL = 1.
<ITECHOBJWRQVW>-TECHNICALOBJECTDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITECHOBJWRQVW-MAINTOBJECTINTERNALID, sy-vline,
  WA_ITECHOBJWRQVW-SUPERIORFUNCTIONALLOCATION, sy-vline,
  WA_ITECHOBJWRQVW-FUNCTIONALLOCATIONLABELNAME, sy-vline,
  WA_ITECHOBJWRQVW-FUNCTIONALLOCATIONNAME, sy-vline,
  WA_ITECHOBJWRQVW-FUNCNLLOCPRIMARYLABELNAME, sy-vline,
  WA_ITECHOBJWRQVW-TECHNICALOBJECTCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITECHOBJWRQVW 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_ITECHOBJWRQVW 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_ITECHOBJWRQVW INTO WA_ITECHOBJWRQVW.


*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 TECHNICALOBJECTLABEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITECHOBJWRQVW-TECHNICALOBJECTLABEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITECHOBJWRQVW-TECHNICALOBJECTLABEL.
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_ITECHOBJWRQVW_STR, 
MANDT TYPE STRING,
TECHNICALOBJECT TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,
TECHNICALOBJECTLABEL TYPE STRING,
TECHNICALOBJECTDESCRIPTION TYPE STRING,
MAINTOBJECTINTERNALID TYPE STRING,
SUPERIORFUNCTIONALLOCATION TYPE STRING,
FUNCTIONALLOCATIONLABELNAME TYPE STRING,
FUNCTIONALLOCATIONNAME TYPE STRING,
FUNCNLLOCPRIMARYLABELNAME TYPE STRING,
TECHNICALOBJECTCATEGORY TYPE STRING,
TECHNICALOBJECTTHUMBNAILURL TYPE STRING,
TECHNICALOBJECTTYPE TYPE STRING,
ASSETMANUFACTURERNAME TYPE STRING,
MAINTENANCEPLANT TYPE STRING,
PLANTNAME TYPE STRING,
PLANTSECTION TYPE STRING,
ASSETLOCATION TYPE STRING,
LOCATIONNAME TYPE STRING,
ASSETROOM TYPE STRING,
MANUFACTURERPARTTYPENAME TYPE STRING,
FUNCLOCSTRUCIDENTIFYINGLEVEL TYPE STRING,
FUNCLOCSTRUC2NDIDENTIFYINGLVL TYPE STRING,
IDENTIFYINGLABEL TYPE STRING,
SECONDIDENTIFYINGLABEL TYPE STRING,
TECHOBJECTWITHLEADINGZEROS TYPE STRING,
MAINTOBJECTLOCACCTASSGMTNMBR TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITECHOBJWRQVW_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_ITECHOBJWRQVW_STR-MANDT sy-vline 
WA_ITECHOBJWRQVW_STR-TECHNICALOBJECT sy-vline 
WA_ITECHOBJWRQVW_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline 
WA_ITECHOBJWRQVW_STR-TECHNICALOBJECTLABEL sy-vline 
WA_ITECHOBJWRQVW_STR-TECHNICALOBJECTDESCRIPTION sy-vline 
WA_ITECHOBJWRQVW_STR-MAINTOBJECTINTERNALID sy-vline 
WA_ITECHOBJWRQVW_STR-SUPERIORFUNCTIONALLOCATION sy-vline 
WA_ITECHOBJWRQVW_STR-FUNCTIONALLOCATIONLABELNAME sy-vline 
WA_ITECHOBJWRQVW_STR-FUNCTIONALLOCATIONNAME sy-vline 
WA_ITECHOBJWRQVW_STR-FUNCNLLOCPRIMARYLABELNAME sy-vline 
WA_ITECHOBJWRQVW_STR-TECHNICALOBJECTCATEGORY sy-vline 
WA_ITECHOBJWRQVW_STR-TECHNICALOBJECTTHUMBNAILURL sy-vline 
WA_ITECHOBJWRQVW_STR-TECHNICALOBJECTTYPE sy-vline 
WA_ITECHOBJWRQVW_STR-ASSETMANUFACTURERNAME sy-vline 
WA_ITECHOBJWRQVW_STR-MAINTENANCEPLANT sy-vline 
WA_ITECHOBJWRQVW_STR-PLANTNAME sy-vline 
WA_ITECHOBJWRQVW_STR-PLANTSECTION sy-vline 
WA_ITECHOBJWRQVW_STR-ASSETLOCATION sy-vline 
WA_ITECHOBJWRQVW_STR-LOCATIONNAME sy-vline 
WA_ITECHOBJWRQVW_STR-ASSETROOM sy-vline 
WA_ITECHOBJWRQVW_STR-MANUFACTURERPARTTYPENAME sy-vline 
WA_ITECHOBJWRQVW_STR-FUNCLOCSTRUCIDENTIFYINGLEVEL sy-vline 
WA_ITECHOBJWRQVW_STR-FUNCLOCSTRUC2NDIDENTIFYINGLVL sy-vline 
WA_ITECHOBJWRQVW_STR-IDENTIFYINGLABEL sy-vline 
WA_ITECHOBJWRQVW_STR-SECONDIDENTIFYINGLABEL sy-vline 
WA_ITECHOBJWRQVW_STR-TECHOBJECTWITHLEADINGZEROS sy-vline 
WA_ITECHOBJWRQVW_STR-MAINTOBJECTLOCACCTASSGMTNMBR sy-vline 
WA_ITECHOBJWRQVW_STR-AUTHORIZATIONGROUP sy-vline 
WA_ITECHOBJWRQVW_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_ITECHOBJWRQVW_STR-MAINTENANCEPLANNERGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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