ABAP Select data from SAP table IMAINTNTFTECOBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMAINTNTFTECOBJ
*  INTO TABLE @DATA(IT_IMAINTNTFTECOBJ2).
*--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_IMAINTNTFTECOBJ INDEX 1 INTO DATA(WA_IMAINTNTFTECOBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMAINTNTFTECOBJ>-MANDT = 1.
<IMAINTNTFTECOBJ>-MAINTENANCENOTIFICATION = 1.
<IMAINTNTFTECOBJ>-TECHNICALOBJECT = 1.
<IMAINTNTFTECOBJ>-TECHOBJISEQUIPORFUNCNLLOC = 1.
<IMAINTNTFTECOBJ>-MAINTPRIORITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMAINTNTFTECOBJ-MAINTPRIORITYTYPE, sy-vline,
  WA_IMAINTNTFTECOBJ-NOTIFICATIONTYPE, sy-vline,
  WA_IMAINTNTFTECOBJ-NOTIFPROCESSINGPHASE, sy-vline,
  WA_IMAINTNTFTECOBJ-CREATEDBYUSER, sy-vline,
  WA_IMAINTNTFTECOBJ-LASTCHANGEDBYUSER, sy-vline,
  WA_IMAINTNTFTECOBJ-CREATIONDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMAINTNTFTECOBJ 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_IMAINTNTFTECOBJ 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_IMAINTNTFTECOBJ INTO WA_IMAINTNTFTECOBJ.


*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 MAINTENANCENOTIFICATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-MAINTENANCENOTIFICATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-MAINTENANCENOTIFICATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PERSONRESPONSIBLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-PERSONRESPONSIBLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-PERSONRESPONSIBLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAINTENANCEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-MAINTENANCEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-MAINTENANCEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MAINTOBJDOWNTIMEDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-MAINTOBJDOWNTIMEDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-MAINTOBJDOWNTIMEDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field FUNCTIONALLOCATION
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-FUNCTIONALLOCATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-FUNCTIONALLOCATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUIPMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-EQUIPMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-EQUIPMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAINTENANCEITEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-MAINTENANCEITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-MAINTENANCEITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAINTENANCEPLAN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMAINTNTFTECOBJ-MAINTENANCEPLAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMAINTNTFTECOBJ-MAINTENANCEPLAN.
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_IMAINTNTFTECOBJ_STR, 
MANDT TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
TECHNICALOBJECT TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,
MAINTPRIORITY TYPE STRING,
MAINTPRIORITYTYPE TYPE STRING,
NOTIFICATIONTYPE TYPE STRING,
NOTIFPROCESSINGPHASE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CREATIONTIME TYPE STRING,
CREATIONDATETIME TYPE STRING,
REPORTEDBYUSER TYPE STRING,
PERSONRESPONSIBLE TYPE STRING,
REPORTERFULLNAME TYPE STRING,
NOTIFICATIONTEXT TYPE STRING,
MAINTENANCEORDER TYPE STRING,
REQUIREDSTARTDATE TYPE STRING,
REQUIREDSTARTTIME TYPE STRING,
REQUIREDENDDATE TYPE STRING,
REQUIREDENDTIME TYPE STRING,
NOTIFICATIONCREATIONDATE TYPE STRING,
NOTIFICATIONCREATIONTIME TYPE STRING,
NOTIFICATIONREFERENCEDATE TYPE STRING,
NOTIFICATIONREFERENCETIME TYPE STRING,
NOTIFICATIONCOMPLETIONDATE TYPE STRING,
COMPLETIONTIME TYPE STRING,
MAINTNOTIFINTERNALID TYPE STRING,
NOTIFICATIONTIMEZONE TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
MAINTENANCEWORKCENTERPLANT TYPE STRING,
MAINTNOTIFICATIONCATALOG TYPE STRING,
MAINTNOTIFICATIONCODE TYPE STRING,
MAINTNOTIFICATIONCODEGROUP TYPE STRING,
ISDELETED TYPE STRING,
ISCOMPLETED TYPE STRING,
CATALOGPROFILE TYPE STRING,
NOTIFICATIONORIGIN TYPE STRING,
MALFUNCTIONEFFECT TYPE STRING,
LOCATIONDESCRIPTION TYPE STRING,
MALFUNCTIONSTARTDATE TYPE STRING,
MALFUNCTIONSTARTTIME TYPE STRING,
MALFUNCTIONENDDATE TYPE STRING,
MALFUNCTIONENDTIME TYPE STRING,
MAINTENANCEOBJECTISDOWN TYPE STRING,
MAINTOBJECTDOWNTIMEDURATION TYPE STRING,
MAINTOBJDOWNTIMEDURATIONUNIT TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
EQUIPMENT TYPE STRING,
MAINTENANCEITEM TYPE STRING,
MAINTENANCEPLAN TYPE STRING,
MAINTENANCEACTIVITYTYPE TYPE STRING,
MAINTNOTIFSOURCEAPPLICATION TYPE STRING,
NOTIFICATIONHASLONGTEXT TYPE STRING,
LATESTACCEPTABLECOMPLETIONDATE TYPE STRING,
MAINTNOTIFEXTREFERENCENUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMAINTNTFTECOBJ_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_IMAINTNTFTECOBJ_STR-MANDT sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCENOTIFICATION sy-vline 
WA_IMAINTNTFTECOBJ_STR-TECHNICALOBJECT sy-vline 
WA_IMAINTNTFTECOBJ_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTPRIORITY sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTPRIORITYTYPE sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONTYPE sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFPROCESSINGPHASE sy-vline 
WA_IMAINTNTFTECOBJ_STR-CREATEDBYUSER sy-vline 
WA_IMAINTNTFTECOBJ_STR-LASTCHANGEDBYUSER sy-vline 
WA_IMAINTNTFTECOBJ_STR-CREATIONDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-LASTCHANGETIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-LASTCHANGEDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-LASTCHANGEDATETIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-CREATIONTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-CREATIONDATETIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-REPORTEDBYUSER sy-vline 
WA_IMAINTNTFTECOBJ_STR-PERSONRESPONSIBLE sy-vline 
WA_IMAINTNTFTECOBJ_STR-REPORTERFULLNAME sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONTEXT sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCEORDER sy-vline 
WA_IMAINTNTFTECOBJ_STR-REQUIREDSTARTDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-REQUIREDSTARTTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-REQUIREDENDDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-REQUIREDENDTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONCREATIONDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONCREATIONTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONREFERENCEDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONREFERENCETIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONCOMPLETIONDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-COMPLETIONTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTNOTIFINTERNALID sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONTIMEZONE sy-vline 
WA_IMAINTNTFTECOBJ_STR-WORKCENTERINTERNALID sy-vline 
WA_IMAINTNTFTECOBJ_STR-WORKCENTERTYPECODE sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCEWORKCENTERPLANT sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTNOTIFICATIONCATALOG sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTNOTIFICATIONCODE sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTNOTIFICATIONCODEGROUP sy-vline 
WA_IMAINTNTFTECOBJ_STR-ISDELETED sy-vline 
WA_IMAINTNTFTECOBJ_STR-ISCOMPLETED sy-vline 
WA_IMAINTNTFTECOBJ_STR-CATALOGPROFILE sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONORIGIN sy-vline 
WA_IMAINTNTFTECOBJ_STR-MALFUNCTIONEFFECT sy-vline 
WA_IMAINTNTFTECOBJ_STR-LOCATIONDESCRIPTION sy-vline 
WA_IMAINTNTFTECOBJ_STR-MALFUNCTIONSTARTDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-MALFUNCTIONSTARTTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-MALFUNCTIONENDDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-MALFUNCTIONENDTIME sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCEOBJECTISDOWN sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTOBJECTDOWNTIMEDURATION sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTOBJDOWNTIMEDURATIONUNIT sy-vline 
WA_IMAINTNTFTECOBJ_STR-FUNCTIONALLOCATION sy-vline 
WA_IMAINTNTFTECOBJ_STR-EQUIPMENT sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCEITEM sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCEPLAN sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTENANCEACTIVITYTYPE sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTNOTIFSOURCEAPPLICATION sy-vline 
WA_IMAINTNTFTECOBJ_STR-NOTIFICATIONHASLONGTEXT sy-vline 
WA_IMAINTNTFTECOBJ_STR-LATESTACCEPTABLECOMPLETIONDATE sy-vline 
WA_IMAINTNTFTECOBJ_STR-MAINTNOTIFEXTREFERENCENUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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