ABAP Select data from SAP table ISRSHMAINTOPERATIONASSIGNTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISRSHMAINTOPERATIONASSIGNTP
*  INTO TABLE @DATA(IT_ISRSHMAINTOPERATIONASSIGNTP2).
*--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_ISRSHMAINTOPERATIONASSIGNTP INDEX 1 INTO DATA(WA_ISRSHMAINTOPERATIONASSIGNTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISRSHMAINTOPERATIONASSIGNTP>-KEY = 1.
<ISRSHMAINTOPERATIONASSIGNTP>-PARENT_KEY = 1.
<ISRSHMAINTOPERATIONASSIGNTP>-ROOT_KEY = 1.
<ISRSHMAINTOPERATIONASSIGNTP>-MAINTORDERROUTINGNUMBER = 1.
<ISRSHMAINTOPERATIONASSIGNTP>-MAINTORDEROPERATIONCOUNTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTENANCEORDER, sy-vline,
  WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTENANCEORDEROPERATION, sy-vline,
  WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTENANCEORDERSUBOPERATION, sy-vline,
  WA_ISRSHMAINTOPERATIONASSIGNTP-ORDERTYPE, sy-vline,
  WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTORDBASICSTARTDATE, sy-vline,
  WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTORDBASICENDDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISRSHMAINTOPERATIONASSIGNTP 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_ISRSHMAINTOPERATIONASSIGNTP 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_ISRSHMAINTOPERATIONASSIGNTP INTO WA_ISRSHMAINTOPERATIONASSIGNTP.


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

*Conversion exit NUMCV, internal->external for field MAINTENANCEORDERSUBOPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTENANCEORDERSUBOPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISRSHMAINTOPERATIONASSIGNTP-MAINTENANCEORDERSUBOPERATION.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field RESPONSIBLECOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISRSHMAINTOPERATIONASSIGNTP-RESPONSIBLECOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISRSHMAINTOPERATIONASSIGNTP-RESPONSIBLECOSTCENTER.
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_ISRSHMAINTOPERATIONASSIGNTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
MAINTORDERROUTINGNUMBER TYPE STRING,
MAINTORDEROPERATIONCOUNTER TYPE STRING,
MAINTENANCEORDER TYPE STRING,
MAINTENANCEORDEROPERATION TYPE STRING,
MAINTENANCEORDERSUBOPERATION TYPE STRING,
ORDERTYPE TYPE STRING,
MAINTORDBASICSTARTDATE TYPE STRING,
MAINTORDBASICENDDATE TYPE STRING,
MAINTENANCEACTIVITYTYPE TYPE STRING,
MAINTPRIORITY TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
EQUIPMENT TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEREVISION TYPE STRING,
OPERATIONSYSTEMCONDITION TYPE STRING,
ASSETROOM TYPE STRING,
ASSETLOCATION TYPE STRING,
PLANTSECTION TYPE STRING,
MAINTENANCEPLAN TYPE STRING,
OPERATIONCONTROLKEY TYPE STRING,
OPERATIONPERSONRESPONSIBLE TYPE STRING,
OPERATIONPERSONRESPNAME TYPE STRING,
WORKCENTER TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
PLANT TYPE STRING,
OPERATIONPLANNEDWORK TYPE STRING,
OPERATIONPLANNEDWORKUNIT TYPE STRING,
OPERATIONDURATION TYPE STRING,
OPERATIONDURATIONUNIT TYPE STRING,
OPERLSTSCHEDLDEXECSTRTDTE TYPE STRING,
OPERLSTSCHEDLDEXECENDDTE TYPE STRING,
OPLTSTSCHEDLDEXECSTRTDTE TYPE STRING,
OPLTSTSCHEDLDEXECENDDTE TYPE STRING,
NUMBEROFCAPACITIES TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
MAINTENANCEPLANT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
RESPONSIBLECOSTCENTER TYPE STRING,
MAINWORKCENTER TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISRSHMAINTOPERATIONASSIGNTP_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_ISRSHMAINTOPERATIONASSIGNTP_STR-KEY sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-PARENT_KEY sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-ROOT_KEY sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTORDERROUTINGNUMBER sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTORDEROPERATIONCOUNTER sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEORDER sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEORDEROPERATION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEORDERSUBOPERATION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-ORDERTYPE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTORDBASICSTARTDATE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTORDBASICENDDATE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEACTIVITYTYPE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTPRIORITY sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCENOTIFICATION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-EQUIPMENT sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-FUNCTIONALLOCATION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEREVISION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONSYSTEMCONDITION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-ASSETROOM sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-ASSETLOCATION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-PLANTSECTION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEPLAN sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONCONTROLKEY sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONPERSONRESPONSIBLE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONPERSONRESPNAME sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-WORKCENTER sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-WORKCENTERTYPECODE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-WORKCENTERINTERNALID sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-PLANT sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONPLANNEDWORK sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONPLANNEDWORKUNIT sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONDURATION sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERATIONDURATIONUNIT sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERLSTSCHEDLDEXECSTRTDTE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPERLSTSCHEDLDEXECENDDTE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPLTSTSCHEDLDEXECSTRTDTE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-OPLTSTSCHEDLDEXECENDDTE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-NUMBEROFCAPACITIES sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-AUTHORIZATIONGROUP sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINTENANCEPLANT sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-CONTROLLINGAREA sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-RESPONSIBLECOSTCENTER sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-MAINWORKCENTER sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-HASACTIVEENTITY sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISRSHMAINTOPERATIONASSIGNTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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