ABAP Select data from SAP table CMPEMATPOVER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMPEMATPOVER
*  INTO TABLE @DATA(IT_CMPEMATPOVER2).
*--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_CMPEMATPOVER INDEX 1 INTO DATA(WA_CMPEMATPOVER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMPEMATPOVER>-MANDT = 1.
<CMPEMATPOVER>-MATERIAL = 1.
<CMPEMATPOVER>-PLANT = 1.
<CMPEMATPOVER>-STORAGELOCATION = 1.
<CMPEMATPOVER>-STORAGELOCATIONNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMPEMATPOVER-PRODUCTIONPLANT, sy-vline,
  WA_CMPEMATPOVER-MRPPLANT, sy-vline,
  WA_CMPEMATPOVER-PRODUCTDESCRIPTION, sy-vline,
  WA_CMPEMATPOVER-MRPCONTROLLER, sy-vline,
  WA_CMPEMATPOVER-MRPCONTROLLERNAME, sy-vline,
  WA_CMPEMATPOVER-MRPCONTROLLERPHONENUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMPEMATPOVER 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_CMPEMATPOVER 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_CMPEMATPOVER INTO WA_CMPEMATPOVER.


*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_CMPEMATPOVER-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPEMATPOVER-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMPEMATPOVER-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPEMATPOVER-BASEUNIT.
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_CMPEMATPOVER_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
MRPPLANT TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
MRPCONTROLLER TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
MRPCONTROLLERPHONENUMBER TYPE STRING,
PRODUCTIONSUPERVISOR TYPE STRING,
PRODUCTIONSUPERVISORNAME TYPE STRING,
MRPTYPE TYPE STRING,
MRPTYPENAME TYPE STRING,
VLTDUNRESTRICTEDUSESTKQTY TYPE STRING,
QUALITYINSPECTIONSTOCKQUANTITY TYPE STRING,
TRANSFERSTOCKSTORAGELOCQTY TYPE STRING,
STOCKINTRANSFERQUANTITY TYPE STRING,
RESTRICTEDSTOCKQUANTITY TYPE STRING,
BLOCKEDSTOCKQUANTITY TYPE STRING,
SALESUNRESTRICTEDSTOCKQTY TYPE STRING,
SALESQUALITYINSPECTIONSTOCKQTY TYPE STRING,
SLSSTKINTRANSFSTORLOCSTOCKQTY TYPE STRING,
SALESSTOCKINTRANSFPLNTSTOCKQTY TYPE STRING,
SALESRESTRICTEDUSERSTOCKQTY TYPE STRING,
SALESBLOCKEDSTOCKQUANTITY TYPE STRING,
PROJSTKUNRESTRICTEDUSESTKQTY TYPE STRING,
PROJECTQUALITYINSPECTIONSTKQTY TYPE STRING,
PROJSTKINTRANSFSTORLOCSTKQTY TYPE STRING,
PROJECTSTOCKINTRANSFPLNTSTKQTY TYPE STRING,
PROJECTRESTRICTEDUSERSTOCKQTY TYPE STRING,
PROJECTBLOCKEDSTOCKQUANTITY TYPE STRING,
PRODUCTIONSCHEDULINGPROFILE TYPE STRING,
SERIALNUMBERPROFILE TYPE STRING,
SERIALNUMBERPROFILENAME TYPE STRING,
ISAPPROVEDBATCHRECORDREQD TYPE STRING,
UNDERDELIVTOLERANCELIMIT TYPE STRING,
OVERDELIVTOLERANCELIMIT TYPE STRING,
MATERIALPROCUREMENTCATNAME TYPE STRING,
SPECIALPROCUREMENTTYPE TYPE STRING,
SAFETYSTOCKQUANTITY TYPE STRING,
DELIVERYTOLERANCEUNIT TYPE STRING,
BASEUNIT TYPE STRING,
MRPRESPONSIBLE TYPE STRING,
PROCUREMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMPEMATPOVER_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_CMPEMATPOVER_STR-MANDT sy-vline 
WA_CMPEMATPOVER_STR-MATERIAL sy-vline 
WA_CMPEMATPOVER_STR-PLANT sy-vline 
WA_CMPEMATPOVER_STR-STORAGELOCATION sy-vline 
WA_CMPEMATPOVER_STR-STORAGELOCATIONNAME sy-vline 
WA_CMPEMATPOVER_STR-PRODUCTIONPLANT sy-vline 
WA_CMPEMATPOVER_STR-MRPPLANT sy-vline 
WA_CMPEMATPOVER_STR-PRODUCTDESCRIPTION sy-vline 
WA_CMPEMATPOVER_STR-MRPCONTROLLER sy-vline 
WA_CMPEMATPOVER_STR-MRPCONTROLLERNAME sy-vline 
WA_CMPEMATPOVER_STR-MRPCONTROLLERPHONENUMBER sy-vline 
WA_CMPEMATPOVER_STR-PRODUCTIONSUPERVISOR sy-vline 
WA_CMPEMATPOVER_STR-PRODUCTIONSUPERVISORNAME sy-vline 
WA_CMPEMATPOVER_STR-MRPTYPE sy-vline 
WA_CMPEMATPOVER_STR-MRPTYPENAME sy-vline 
WA_CMPEMATPOVER_STR-VLTDUNRESTRICTEDUSESTKQTY sy-vline 
WA_CMPEMATPOVER_STR-QUALITYINSPECTIONSTOCKQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-TRANSFERSTOCKSTORAGELOCQTY sy-vline 
WA_CMPEMATPOVER_STR-STOCKINTRANSFERQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-RESTRICTEDSTOCKQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-BLOCKEDSTOCKQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-SALESUNRESTRICTEDSTOCKQTY sy-vline 
WA_CMPEMATPOVER_STR-SALESQUALITYINSPECTIONSTOCKQTY sy-vline 
WA_CMPEMATPOVER_STR-SLSSTKINTRANSFSTORLOCSTOCKQTY sy-vline 
WA_CMPEMATPOVER_STR-SALESSTOCKINTRANSFPLNTSTOCKQTY sy-vline 
WA_CMPEMATPOVER_STR-SALESRESTRICTEDUSERSTOCKQTY sy-vline 
WA_CMPEMATPOVER_STR-SALESBLOCKEDSTOCKQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-PROJSTKUNRESTRICTEDUSESTKQTY sy-vline 
WA_CMPEMATPOVER_STR-PROJECTQUALITYINSPECTIONSTKQTY sy-vline 
WA_CMPEMATPOVER_STR-PROJSTKINTRANSFSTORLOCSTKQTY sy-vline 
WA_CMPEMATPOVER_STR-PROJECTSTOCKINTRANSFPLNTSTKQTY sy-vline 
WA_CMPEMATPOVER_STR-PROJECTRESTRICTEDUSERSTOCKQTY sy-vline 
WA_CMPEMATPOVER_STR-PROJECTBLOCKEDSTOCKQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-PRODUCTIONSCHEDULINGPROFILE sy-vline 
WA_CMPEMATPOVER_STR-SERIALNUMBERPROFILE sy-vline 
WA_CMPEMATPOVER_STR-SERIALNUMBERPROFILENAME sy-vline 
WA_CMPEMATPOVER_STR-ISAPPROVEDBATCHRECORDREQD sy-vline 
WA_CMPEMATPOVER_STR-UNDERDELIVTOLERANCELIMIT sy-vline 
WA_CMPEMATPOVER_STR-OVERDELIVTOLERANCELIMIT sy-vline 
WA_CMPEMATPOVER_STR-MATERIALPROCUREMENTCATNAME sy-vline 
WA_CMPEMATPOVER_STR-SPECIALPROCUREMENTTYPE sy-vline 
WA_CMPEMATPOVER_STR-SAFETYSTOCKQUANTITY sy-vline 
WA_CMPEMATPOVER_STR-DELIVERYTOLERANCEUNIT sy-vline 
WA_CMPEMATPOVER_STR-BASEUNIT sy-vline 
WA_CMPEMATPOVER_STR-MRPRESPONSIBLE sy-vline 
WA_CMPEMATPOVER_STR-PROCUREMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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