ABAP Select data from SAP table CMRPMAINTORDCOMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMRPMAINTORDCOMP
*  INTO TABLE @DATA(IT_CMRPMAINTORDCOMP2).
*--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_CMRPMAINTORDCOMP INDEX 1 INTO DATA(WA_CMRPMAINTORDCOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMRPMAINTORDCOMP>-MANDT = 1.
<CMRPMAINTORDCOMP>-RESERVATION = 1.
<CMRPMAINTORDCOMP>-RESERVATIONITEM = 1.
<CMRPMAINTORDCOMP>-RECORDTYPE = 1.
<CMRPMAINTORDCOMP>-REQUIREMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMRPMAINTORDCOMP-MATERIAL, sy-vline,
  WA_CMRPMAINTORDCOMP-MATERIALNAME, sy-vline,
  WA_CMRPMAINTORDCOMP-MRPPLANT, sy-vline,
  WA_CMRPMAINTORDCOMP-SUPPLYINGPLANT, sy-vline,
  WA_CMRPMAINTORDCOMP-REQUIREMENTDATE, sy-vline,
  WA_CMRPMAINTORDCOMP-BASEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMRPMAINTORDCOMP 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_CMRPMAINTORDCOMP 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_CMRPMAINTORDCOMP INTO WA_CMRPMAINTORDCOMP.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASEREQUISITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMRPMAINTORDCOMP-PURCHASEREQUISITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMRPMAINTORDCOMP-PURCHASEREQUISITION.
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_CMRPMAINTORDCOMP_STR, 
MANDT TYPE STRING,
RESERVATION TYPE STRING,
RESERVATIONITEM TYPE STRING,
RECORDTYPE TYPE STRING,
REQUIREMENTTYPE TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MRPPLANT TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
REQUIREMENTDATE TYPE STRING,
BASEUNIT TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MATERIALPROCUREMENTCATEGORY TYPE STRING,
MATERIALPROCUREMENTTYPE TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
ORDERCATEGORY TYPE STRING,
ORDERTYPE TYPE STRING,
ORDERTYPENAME TYPE STRING,
PRIORITYCODE TYPE STRING,
PLANNEDORDER TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
MRPCONTROLLER TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
MRPCONTROLLERPHONENUMBER TYPE STRING,
EMAILADDRESS TYPE STRING,
PRODUCTIONSUPERVISOR TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
PRODUCTIONVERSIONTEXT TYPE STRING,
PRODUCTIONLINE TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
ORDEREDQUANTITY TYPE STRING,
WITHDRAWNQUANTITY TYPE STRING,
OPENQUANTITY TYPE STRING,
COMMITTEDQUANTITY TYPE STRING,
ORDERPLANNEDTOTALQTY TYPE STRING,
ORDERPLANNEDSCRAPQTY TYPE STRING,
EXPECTEDDEVIATIONQUANTITY TYPE STRING,
GOODSRECEIPTQTY TYPE STRING,
PLANNEDSTARTDATE TYPE STRING,
ORDERPLANNEDENDDATE TYPE STRING,
ACTUALSTARTDATE TYPE STRING,
ACTUALENDDATE TYPE STRING,
ACTUALRELEASEDDATE TYPE STRING,
SCHEDULEDBASICSTARTDATE TYPE STRING,
SCHEDULEDBASICENDDATE TYPE STRING,
SCHEDULEDRELEASEDATE TYPE STRING,
TOPLEVELORDER TYPE STRING,
TOPLEVELORDERMATERIAL TYPE STRING,
MATERIALGOODSRECEIPTDURATION TYPE STRING,
MATERIALPLANNEDDELIVERYDURN TYPE STRING,
MATERIALPLANNEDPRODUCTIONDURN TYPE STRING,
MATERIALREPLENISHMENTLEADDURN TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
SALESORDERTYPE TYPE STRING,
SALESORDERITEMMATERIAL TYPE STRING,
CUSTOMER TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
WBSELEMENT TYPE STRING,
WBSDESCRIPTION TYPE STRING,
RESPONSIBLEPERSON TYPE STRING,
RESPONSIBLEPERSONNAME TYPE STRING,
PROJECTINTERNALID TYPE STRING,
PROJECTDESCRIPTION TYPE STRING,
PROJECT TYPE STRING,
TOTALREPLENISHMENTLEADDURATION TYPE STRING,
FIXEDLOTSIZEQUANTITY TYPE STRING,
MINIMUMLOTSIZEQUANTITY TYPE STRING,
MAXIMUMLOTSIZEQUANTITY TYPE STRING,
LOTSIZEROUNDINGQUANTITY TYPE STRING,
ROUNDINGPROFILE TYPE STRING,
MAINTPRIORITYTYPE TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEREVISION TYPE STRING,
MAINTENANCEPLAN TYPE STRING,
MAINTENANCENOTIFICATION TYPE STRING,
MAINTENANCEWORKCENTER TYPE STRING,
MAINTENANCEWORKCENTERPLANT TYPE STRING,
ACTIVITYTYPE TYPE STRING,
MAINTENANCEPLANNERGROUPNAME TYPE STRING,
MAINTENANCEORDER TYPE STRING,
MAINTENANCEORDEROPERATION TYPE STRING,
MAINTENANCEORDERCOMPONENT TYPE STRING,
COMPONENTDESCRIPTION TYPE STRING,
STORAGELOCATION TYPE STRING,
MAINTORDERROUTINGNUMBER TYPE STRING,
MAINTORDEROPERATIONCOUNTER TYPE STRING,
MAINTORDERCOMPONENTINTERNALID TYPE STRING,
ITEMCATEGORY TYPE STRING,
MATERIALGROUP TYPE STRING,
ISDELETED TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMRPMAINTORDCOMP_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_CMRPMAINTORDCOMP_STR-MANDT sy-vline 
WA_CMRPMAINTORDCOMP_STR-RESERVATION sy-vline 
WA_CMRPMAINTORDCOMP_STR-RESERVATIONITEM sy-vline 
WA_CMRPMAINTORDCOMP_STR-RECORDTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-REQUIREMENTTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIAL sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALNAME sy-vline 
WA_CMRPMAINTORDCOMP_STR-MRPPLANT sy-vline 
WA_CMRPMAINTORDCOMP_STR-SUPPLYINGPLANT sy-vline 
WA_CMRPMAINTORDCOMP_STR-REQUIREMENTDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-BASEUNIT sy-vline 
WA_CMRPMAINTORDCOMP_STR-SUPPLIER sy-vline 
WA_CMRPMAINTORDCOMP_STR-PURCHASINGGROUP sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALPROCUREMENTCATEGORY sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALPROCUREMENTTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-MANUFACTURINGORDER sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDERCATEGORY sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDERTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDERTYPENAME sy-vline 
WA_CMRPMAINTORDCOMP_STR-PRIORITYCODE sy-vline 
WA_CMRPMAINTORDCOMP_STR-PLANNEDORDER sy-vline 
WA_CMRPMAINTORDCOMP_STR-PRODUCTIONPLANT sy-vline 
WA_CMRPMAINTORDCOMP_STR-MRPCONTROLLER sy-vline 
WA_CMRPMAINTORDCOMP_STR-MRPCONTROLLERNAME sy-vline 
WA_CMRPMAINTORDCOMP_STR-MRPCONTROLLERPHONENUMBER sy-vline 
WA_CMRPMAINTORDCOMP_STR-EMAILADDRESS sy-vline 
WA_CMRPMAINTORDCOMP_STR-PRODUCTIONSUPERVISOR sy-vline 
WA_CMRPMAINTORDCOMP_STR-PRODUCTIONVERSION sy-vline 
WA_CMRPMAINTORDCOMP_STR-PRODUCTIONVERSIONTEXT sy-vline 
WA_CMRPMAINTORDCOMP_STR-PRODUCTIONLINE sy-vline 
WA_CMRPMAINTORDCOMP_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDEREDQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-WITHDRAWNQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-OPENQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-COMMITTEDQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDERPLANNEDTOTALQTY sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDERPLANNEDSCRAPQTY sy-vline 
WA_CMRPMAINTORDCOMP_STR-EXPECTEDDEVIATIONQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-GOODSRECEIPTQTY sy-vline 
WA_CMRPMAINTORDCOMP_STR-PLANNEDSTARTDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-ORDERPLANNEDENDDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-ACTUALSTARTDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-ACTUALENDDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-ACTUALRELEASEDDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-SCHEDULEDBASICSTARTDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-SCHEDULEDBASICENDDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-SCHEDULEDRELEASEDATE sy-vline 
WA_CMRPMAINTORDCOMP_STR-TOPLEVELORDER sy-vline 
WA_CMRPMAINTORDCOMP_STR-TOPLEVELORDERMATERIAL sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALGOODSRECEIPTDURATION sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALPLANNEDDELIVERYDURN sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALPLANNEDPRODUCTIONDURN sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALREPLENISHMENTLEADDURN sy-vline 
WA_CMRPMAINTORDCOMP_STR-SALESORDER sy-vline 
WA_CMRPMAINTORDCOMP_STR-SALESORDERITEM sy-vline 
WA_CMRPMAINTORDCOMP_STR-SALESORDERTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-SALESORDERITEMMATERIAL sy-vline 
WA_CMRPMAINTORDCOMP_STR-CUSTOMER sy-vline 
WA_CMRPMAINTORDCOMP_STR-WBSELEMENTINTERNALID sy-vline 
WA_CMRPMAINTORDCOMP_STR-WBSELEMENT sy-vline 
WA_CMRPMAINTORDCOMP_STR-WBSDESCRIPTION sy-vline 
WA_CMRPMAINTORDCOMP_STR-RESPONSIBLEPERSON sy-vline 
WA_CMRPMAINTORDCOMP_STR-RESPONSIBLEPERSONNAME sy-vline 
WA_CMRPMAINTORDCOMP_STR-PROJECTINTERNALID sy-vline 
WA_CMRPMAINTORDCOMP_STR-PROJECTDESCRIPTION sy-vline 
WA_CMRPMAINTORDCOMP_STR-PROJECT sy-vline 
WA_CMRPMAINTORDCOMP_STR-TOTALREPLENISHMENTLEADDURATION sy-vline 
WA_CMRPMAINTORDCOMP_STR-FIXEDLOTSIZEQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-MINIMUMLOTSIZEQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAXIMUMLOTSIZEQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-LOTSIZEROUNDINGQUANTITY sy-vline 
WA_CMRPMAINTORDCOMP_STR-ROUNDINGPROFILE sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTPRIORITYTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEREVISION sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEPLAN sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCENOTIFICATION sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEWORKCENTER sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEWORKCENTERPLANT sy-vline 
WA_CMRPMAINTORDCOMP_STR-ACTIVITYTYPE sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEPLANNERGROUPNAME sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEORDER sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEORDEROPERATION sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTENANCEORDERCOMPONENT sy-vline 
WA_CMRPMAINTORDCOMP_STR-COMPONENTDESCRIPTION sy-vline 
WA_CMRPMAINTORDCOMP_STR-STORAGELOCATION sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTORDERROUTINGNUMBER sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTORDEROPERATIONCOUNTER sy-vline 
WA_CMRPMAINTORDCOMP_STR-MAINTORDERCOMPONENTINTERNALID sy-vline 
WA_CMRPMAINTORDCOMP_STR-ITEMCATEGORY sy-vline 
WA_CMRPMAINTORDCOMP_STR-MATERIALGROUP sy-vline 
WA_CMRPMAINTORDCOMP_STR-ISDELETED sy-vline 
WA_CMRPMAINTORDCOMP_STR-PURCHASEREQUISITION sy-vline 
WA_CMRPMAINTORDCOMP_STR-PURCHASEREQUISITIONITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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