ABAP Select data from SAP table IPMNTFMAINTDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPMNTFMAINTDATA
*  INTO TABLE @DATA(IT_IPMNTFMAINTDATA2).
*--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_IPMNTFMAINTDATA INDEX 1 INTO DATA(WA_IPMNTFMAINTDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPMNTFMAINTDATA>-MANDT = 1.
<IPMNTFMAINTDATA>-MAINTENANCENOTIFICATION = 1.
<IPMNTFMAINTDATA>-MAINTOBJECTLOCACCTASSGMTNMBR = 1.
<IPMNTFMAINTDATA>-MALFUNCTIONEFFECT = 1.
<IPMNTFMAINTDATA>-EQUIPMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPMNTFMAINTDATA-ASSEMBLY, sy-vline,
  WA_IPMNTFMAINTDATA-MAINTENANCEPLANNINGPLANT, sy-vline,
  WA_IPMNTFMAINTDATA-MAINTENANCEPLANNERGROUP, sy-vline,
  WA_IPMNTFMAINTDATA-LOCATIONDESCRIPTION, sy-vline,
  WA_IPMNTFMAINTDATA-MAINTENANCEOBJECTISDOWN, sy-vline,
  WA_IPMNTFMAINTDATA-MALFUNCTIONSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPMNTFMAINTDATA 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_IPMNTFMAINTDATA 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_IPMNTFMAINTDATA INTO WA_IPMNTFMAINTDATA.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field TASKLISTGROUPCOUNTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPMNTFMAINTDATA-TASKLISTGROUPCOUNTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPMNTFMAINTDATA-TASKLISTGROUPCOUNTER.
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_IPMNTFMAINTDATA_STR, 
MANDT TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
MAINTOBJECTLOCACCTASSGMTNMBR TYPE STRING,
MALFUNCTIONEFFECT TYPE STRING,
EQUIPMENT TYPE STRING,
ASSEMBLY TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
LOCATIONDESCRIPTION TYPE STRING,
MAINTENANCEOBJECTISDOWN TYPE STRING,
MALFUNCTIONSTARTDATE TYPE STRING,
MALFUNCTIONENDDATE TYPE STRING,
MALFUNCTIONSTARTTIME TYPE STRING,
MALFUNCTIONENDTIME TYPE STRING,
INSPECTIONDATE TYPE STRING,
INSPECTEDBYUSER TYPE STRING,
MAINTENANCEREVISION TYPE STRING,
MAINTOBJECTDOWNTIMEDURATION TYPE STRING,
MAINTOBJDOWNTIMEDURATIONUNIT TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
MAINTENANCEPLAN TYPE STRING,
MAINTENANCEITEM TYPE STRING,
MAINTENANCEACTIVITYTYPE TYPE STRING,
RELEVANTFUNCTIONALLOCATION TYPE STRING,
RELEVANTEQUIPMENT TYPE STRING,
AVAILYBEFOREMALFUNCTIONPERCENT TYPE STRING,
AVAILYAFTERMALFUNCTIONPERCENT TYPE STRING,
AVAILYAFTERCONCLUSIONPERCENT TYPE STRING,
SYSTCONDITIONBEFOREMALFUNCTION TYPE STRING,
SYSTCONDITIONAFTERMALFUNCTION TYPE STRING,
SYSTCONDITIONAFTERCOMPLETION TYPE STRING,
LATESTACCEPTABLECOMPLETIONDATE TYPE STRING,
NOTIFICATIONPERSONRESPONSIBLE TYPE STRING,
MAINTNOTIFPROCESSPHASECODE TYPE STRING,
MAINTNOTIFPROCESSSUBPHASECODE TYPE STRING,
MAINTNOTIFREJECTIONREASONCODE TYPE STRING,
MAINTENANCEPLANCALLNUMBER TYPE STRING,
MAINTENANCETASKLISTTYPE TYPE STRING,
TASKLISTGROUP TYPE STRING,
TASKLISTGROUPCOUNTER TYPE STRING,
MAINTNOTIFDETECTIONCATALOG TYPE STRING,
MAINTNOTIFDETECTIONCODEGROUP TYPE STRING,
MAINTNOTIFDETECTIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPMNTFMAINTDATA_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_IPMNTFMAINTDATA_STR-MANDT sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCENOTIFICATION sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTOBJECTLOCACCTASSGMTNMBR sy-vline 
WA_IPMNTFMAINTDATA_STR-MALFUNCTIONEFFECT sy-vline 
WA_IPMNTFMAINTDATA_STR-EQUIPMENT sy-vline 
WA_IPMNTFMAINTDATA_STR-ASSEMBLY sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_IPMNTFMAINTDATA_STR-LOCATIONDESCRIPTION sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEOBJECTISDOWN sy-vline 
WA_IPMNTFMAINTDATA_STR-MALFUNCTIONSTARTDATE sy-vline 
WA_IPMNTFMAINTDATA_STR-MALFUNCTIONENDDATE sy-vline 
WA_IPMNTFMAINTDATA_STR-MALFUNCTIONSTARTTIME sy-vline 
WA_IPMNTFMAINTDATA_STR-MALFUNCTIONENDTIME sy-vline 
WA_IPMNTFMAINTDATA_STR-INSPECTIONDATE sy-vline 
WA_IPMNTFMAINTDATA_STR-INSPECTEDBYUSER sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEREVISION sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTOBJECTDOWNTIMEDURATION sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTOBJDOWNTIMEDURATIONUNIT sy-vline 
WA_IPMNTFMAINTDATA_STR-SALESDOCUMENT sy-vline 
WA_IPMNTFMAINTDATA_STR-SALESDOCUMENTITEM sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEPLAN sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEITEM sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEACTIVITYTYPE sy-vline 
WA_IPMNTFMAINTDATA_STR-RELEVANTFUNCTIONALLOCATION sy-vline 
WA_IPMNTFMAINTDATA_STR-RELEVANTEQUIPMENT sy-vline 
WA_IPMNTFMAINTDATA_STR-AVAILYBEFOREMALFUNCTIONPERCENT sy-vline 
WA_IPMNTFMAINTDATA_STR-AVAILYAFTERMALFUNCTIONPERCENT sy-vline 
WA_IPMNTFMAINTDATA_STR-AVAILYAFTERCONCLUSIONPERCENT sy-vline 
WA_IPMNTFMAINTDATA_STR-SYSTCONDITIONBEFOREMALFUNCTION sy-vline 
WA_IPMNTFMAINTDATA_STR-SYSTCONDITIONAFTERMALFUNCTION sy-vline 
WA_IPMNTFMAINTDATA_STR-SYSTCONDITIONAFTERCOMPLETION sy-vline 
WA_IPMNTFMAINTDATA_STR-LATESTACCEPTABLECOMPLETIONDATE sy-vline 
WA_IPMNTFMAINTDATA_STR-NOTIFICATIONPERSONRESPONSIBLE sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTNOTIFPROCESSPHASECODE sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTNOTIFPROCESSSUBPHASECODE sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTNOTIFREJECTIONREASONCODE sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCEPLANCALLNUMBER sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTENANCETASKLISTTYPE sy-vline 
WA_IPMNTFMAINTDATA_STR-TASKLISTGROUP sy-vline 
WA_IPMNTFMAINTDATA_STR-TASKLISTGROUPCOUNTER sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTNOTIFDETECTIONCATALOG sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTNOTIFDETECTIONCODEGROUP sy-vline 
WA_IPMNTFMAINTDATA_STR-MAINTNOTIFDETECTIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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