ABAP Select data from SAP table IDFSMAINTNOTIF into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDFSMAINTNOTIF
*  INTO TABLE @DATA(IT_IDFSMAINTNOTIF2).
*--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_IDFSMAINTNOTIF INDEX 1 INTO DATA(WA_IDFSMAINTNOTIF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDFSMAINTNOTIF>-MANDT = 1.
<IDFSMAINTNOTIF>-MAINTENANCENOTIFICATION = 1.
<IDFSMAINTNOTIF>-NOTIFICATIONTEXT = 1.
<IDFSMAINTNOTIF>-EQUIPMENT = 1.
<IDFSMAINTNOTIF>-EQUIPMENTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDFSMAINTNOTIF-DFSMAINTFUNCTIONALLOCATION, sy-vline,
  WA_IDFSMAINTNOTIF-FUNCTIONALLOCATIONNAME, sy-vline,
  WA_IDFSMAINTNOTIF-NOTIFICATIONTYPE, sy-vline,
  WA_IDFSMAINTNOTIF-WORKCENTERINTERNALID, sy-vline,
  WA_IDFSMAINTNOTIF-WORKCENTER, sy-vline,
  WA_IDFSMAINTNOTIF-WORKCENTERTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDFSMAINTNOTIF 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_IDFSMAINTNOTIF 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_IDFSMAINTNOTIF INTO WA_IDFSMAINTNOTIF.


*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_IDFSMAINTNOTIF-MAINTENANCENOTIFICATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSMAINTNOTIF-MAINTENANCENOTIFICATION.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IDFSMAINTNOTIF-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSMAINTNOTIF-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MAINTENANCEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDFSMAINTNOTIF-MAINTENANCEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSMAINTNOTIF-MAINTENANCEORDER.
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_IDFSMAINTNOTIF_STR, 
MANDT TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
NOTIFICATIONTEXT TYPE STRING,
EQUIPMENT TYPE STRING,
EQUIPMENTNAME TYPE STRING,
DFSMAINTFUNCTIONALLOCATION TYPE STRING,
FUNCTIONALLOCATIONNAME TYPE STRING,
NOTIFICATIONTYPE TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERTEXT TYPE STRING,
MAINTENANCEWORKCENTERPLANT TYPE STRING,
REQUIREDSTARTDATE TYPE STRING,
REQUIREDSTARTTIME TYPE STRING,
REQUIREDENDDATE TYPE STRING,
REQUIREDENDTIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
MAINTNOTIFINTERNALID TYPE STRING,
DFSMAINTNOTIFICATIONOBJECTNMBR TYPE STRING,
NOTIFPROCESSINGPHASE TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEPLANNERGROUPNAME TYPE STRING,
MAINTENANCEORDER TYPE STRING,
MAINTPRIORITY TYPE STRING,
MAINTPRIORITYDESC TYPE STRING,
DFSMAINTNOTIFTECHSTSSHORTNAME TYPE STRING,
DFSMAINTNOTIFTECHSTSLONGNAME TYPE STRING,
DFSMAINTNOTIFTECHSTATUSPROFILE TYPE STRING,
DFSMAINTEXPLOSIONTYPE TYPE STRING,
DFSMAINTEQUIPMENTUTILIZERID TYPE STRING,
DFSMAINTTECHSTSICONURL TYPE STRING,
DFSMAINTNOTIFUSERSTSSHORTNAME TYPE STRING,
DFSMAINTNOTIFSYSTSTSSHORTNAME TYPE STRING,
TECHOBJECTWITHLEADINGZEROS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDFSMAINTNOTIF_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_IDFSMAINTNOTIF_STR-MANDT sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTENANCENOTIFICATION sy-vline 
WA_IDFSMAINTNOTIF_STR-NOTIFICATIONTEXT sy-vline 
WA_IDFSMAINTNOTIF_STR-EQUIPMENT sy-vline 
WA_IDFSMAINTNOTIF_STR-EQUIPMENTNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTFUNCTIONALLOCATION sy-vline 
WA_IDFSMAINTNOTIF_STR-FUNCTIONALLOCATIONNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-NOTIFICATIONTYPE sy-vline 
WA_IDFSMAINTNOTIF_STR-WORKCENTERINTERNALID sy-vline 
WA_IDFSMAINTNOTIF_STR-WORKCENTER sy-vline 
WA_IDFSMAINTNOTIF_STR-WORKCENTERTEXT sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTENANCEWORKCENTERPLANT sy-vline 
WA_IDFSMAINTNOTIF_STR-REQUIREDSTARTDATE sy-vline 
WA_IDFSMAINTNOTIF_STR-REQUIREDSTARTTIME sy-vline 
WA_IDFSMAINTNOTIF_STR-REQUIREDENDDATE sy-vline 
WA_IDFSMAINTNOTIF_STR-REQUIREDENDTIME sy-vline 
WA_IDFSMAINTNOTIF_STR-CREATEDBYUSER sy-vline 
WA_IDFSMAINTNOTIF_STR-CREATIONDATE sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTNOTIFINTERNALID sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTNOTIFICATIONOBJECTNMBR sy-vline 
WA_IDFSMAINTNOTIF_STR-NOTIFPROCESSINGPHASE sy-vline 
WA_IDFSMAINTNOTIF_STR-MATERIAL sy-vline 
WA_IDFSMAINTNOTIF_STR-MATERIALNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTENANCEPLANNERGROUPNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTENANCEORDER sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTPRIORITY sy-vline 
WA_IDFSMAINTNOTIF_STR-MAINTPRIORITYDESC sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTNOTIFTECHSTSSHORTNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTNOTIFTECHSTSLONGNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTNOTIFTECHSTATUSPROFILE sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTEXPLOSIONTYPE sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTEQUIPMENTUTILIZERID sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTTECHSTSICONURL sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTNOTIFUSERSTSSHORTNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-DFSMAINTNOTIFSYSTSTSSHORTNAME sy-vline 
WA_IDFSMAINTNOTIF_STR-TECHOBJECTWITHLEADINGZEROS sy-vline      INTO ld_text SEPARATED BY SPACE.

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