ABAP Select data from SAP table CMPEOACOMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMPEOACOMP
*  INTO TABLE @DATA(IT_CMPEOACOMP2).
*--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_CMPEOACOMP INDEX 1 INTO DATA(WA_CMPEOACOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMPEOACOMP>-MANDT = 1.
<CMPEOACOMP>-OPACTYNTWKINSTANCE = 1.
<CMPEOACOMP>-OPACTYNTWKELEMENT = 1.
<CMPEOACOMP>-RESERVATION = 1.
<CMPEOACOMP>-RESERVATIONITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMPEOACOMP-RECORDTYPE, sy-vline,
  WA_CMPEOACOMP-MATERIAL, sy-vline,
  WA_CMPEOACOMP-PLANT, sy-vline,
  WA_CMPEOACOMP-MANUFACTURINGORDER, sy-vline,
  WA_CMPEOACOMP-PRODUCTIONPLANT, sy-vline,
  WA_CMPEOACOMP-STORAGELOCATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMPEOACOMP 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_CMPEOACOMP 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_CMPEOACOMP INTO WA_CMPEOACOMP.


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

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

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

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

*Conversion exit ALPHA, internal->external for field BILLOFOPERATIONSGROUP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMPEOACOMP-BILLOFOPERATIONSGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMPEOACOMP-BILLOFOPERATIONSGROUP.
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_CMPEOACOMP_STR, 
MANDT TYPE STRING,
OPACTYNTWKINSTANCE TYPE STRING,
OPACTYNTWKELEMENT TYPE STRING,
RESERVATION TYPE STRING,
RESERVATIONITEM TYPE STRING,
RECORDTYPE TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MANUFACTURINGORDER TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
MATERIALNAME TYPE STRING,
OPACTYNTWKSEGMENTTYPE TYPE STRING,
ASSEMBLYSEQUENCENUMBER TYPE STRING,
BASEUNIT TYPE STRING,
MFGORDERCOMPONENTUSAGEQUANTITY TYPE STRING,
REQUIREDQUANTITY TYPE STRING,
MATERIALCOMPONENTQUANTITY TYPE STRING,
COMPONENTASSEMBLYCRITICALITY TYPE STRING,
SERIALNUMBERPROFILE TYPE STRING,
SERIALNUMBERISRQDFORGOODSISSUE TYPE STRING,
STOCKCHECKMESSAGETYPE TYPE STRING,
ISBATCHMANAGEMENTREQUIRED TYPE STRING,
MATLCOMPISMARKEDFORBACKFLUSH TYPE STRING,
ISBULKMATERIALCOMPONENT TYPE STRING,
MATLCOMPDISCONTINUATIONTYPE TYPE STRING,
MATLCOMPASSEMBLECONTROL TYPE STRING,
MATLCOMPASSEMBLECONTROLNAME TYPE STRING,
GOODSMOVEMENTISALLOWED TYPE STRING,
MATERIALCOMPONENTISMISSING TYPE STRING,
RESERVATIONISFINALLYISSUED TYPE STRING,
MATLCOMPINSTCEASSYISREQUIRED TYPE STRING,
BOMITEMCATEGORY TYPE STRING,
BILLOFMATERIALITEMCATEGORYDESC TYPE STRING,
MFGREFSTRUCITMREFDESIGNATOR TYPE STRING,
MFGREFSTRUCITMREFDSGNTRDESC TYPE STRING,
MFGREFSTRUCITMREFDSGNTRNAME TYPE STRING,
RELATEDRESERVATION TYPE STRING,
RELATEDRESERVATIONITEM TYPE STRING,
RELATEDRECORDTYPE TYPE STRING,
RELATEDOPACTYNTWKINSTANCE TYPE STRING,
RELATEDOPACTYNTWKELEMENT TYPE STRING,
LEADINGRESERVATION TYPE STRING,
LEADINGRESERVATIONITEM TYPE STRING,
LEADINGRESERVATIONRECORDTYPE TYPE STRING,
LEADINGOPACTYNTWKINSTANCE TYPE STRING,
LEADINGOPACTYNTWKELEMENT TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
BILLOFMATERIAL TYPE STRING,
BILLOFMATERIALINTERNALID TYPE STRING,
BOMITEM TYPE STRING,
BOMITEMINTERNALCHANGECOUNT TYPE STRING,
BILLOFOPERATIONSTYPE TYPE STRING,
BILLOFOPERATIONSGROUP TYPE STRING,
BOOOPBOMITEMINTERNALID TYPE STRING,
LOGICALCOMPONENT TYPE STRING,
MFGREFSTRUCBOMLEAFASSGMTUUID TYPE STRING,
MFGREFSTRUCTUREITEMDETAILUUID TYPE STRING,
MFGREFSTRUCITMDETISCONTEXTUAL TYPE STRING,
OPERATIONACTIVITY TYPE STRING,
OPERATIONACTYVERSIONCOUNTER TYPE STRING,
ORDERINTERNALID TYPE STRING,
ORDEROPERATIONINTERNALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMPEOACOMP_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_CMPEOACOMP_STR-MANDT sy-vline 
WA_CMPEOACOMP_STR-OPACTYNTWKINSTANCE sy-vline 
WA_CMPEOACOMP_STR-OPACTYNTWKELEMENT sy-vline 
WA_CMPEOACOMP_STR-RESERVATION sy-vline 
WA_CMPEOACOMP_STR-RESERVATIONITEM sy-vline 
WA_CMPEOACOMP_STR-RECORDTYPE sy-vline 
WA_CMPEOACOMP_STR-MATERIAL sy-vline 
WA_CMPEOACOMP_STR-PLANT sy-vline 
WA_CMPEOACOMP_STR-MANUFACTURINGORDER sy-vline 
WA_CMPEOACOMP_STR-PRODUCTIONPLANT sy-vline 
WA_CMPEOACOMP_STR-STORAGELOCATION sy-vline 
WA_CMPEOACOMP_STR-MATERIALNAME sy-vline 
WA_CMPEOACOMP_STR-OPACTYNTWKSEGMENTTYPE sy-vline 
WA_CMPEOACOMP_STR-ASSEMBLYSEQUENCENUMBER sy-vline 
WA_CMPEOACOMP_STR-BASEUNIT sy-vline 
WA_CMPEOACOMP_STR-MFGORDERCOMPONENTUSAGEQUANTITY sy-vline 
WA_CMPEOACOMP_STR-REQUIREDQUANTITY sy-vline 
WA_CMPEOACOMP_STR-MATERIALCOMPONENTQUANTITY sy-vline 
WA_CMPEOACOMP_STR-COMPONENTASSEMBLYCRITICALITY sy-vline 
WA_CMPEOACOMP_STR-SERIALNUMBERPROFILE sy-vline 
WA_CMPEOACOMP_STR-SERIALNUMBERISRQDFORGOODSISSUE sy-vline 
WA_CMPEOACOMP_STR-STOCKCHECKMESSAGETYPE sy-vline 
WA_CMPEOACOMP_STR-ISBATCHMANAGEMENTREQUIRED sy-vline 
WA_CMPEOACOMP_STR-MATLCOMPISMARKEDFORBACKFLUSH sy-vline 
WA_CMPEOACOMP_STR-ISBULKMATERIALCOMPONENT sy-vline 
WA_CMPEOACOMP_STR-MATLCOMPDISCONTINUATIONTYPE sy-vline 
WA_CMPEOACOMP_STR-MATLCOMPASSEMBLECONTROL sy-vline 
WA_CMPEOACOMP_STR-MATLCOMPASSEMBLECONTROLNAME sy-vline 
WA_CMPEOACOMP_STR-GOODSMOVEMENTISALLOWED sy-vline 
WA_CMPEOACOMP_STR-MATERIALCOMPONENTISMISSING sy-vline 
WA_CMPEOACOMP_STR-RESERVATIONISFINALLYISSUED sy-vline 
WA_CMPEOACOMP_STR-MATLCOMPINSTCEASSYISREQUIRED sy-vline 
WA_CMPEOACOMP_STR-BOMITEMCATEGORY sy-vline 
WA_CMPEOACOMP_STR-BILLOFMATERIALITEMCATEGORYDESC sy-vline 
WA_CMPEOACOMP_STR-MFGREFSTRUCITMREFDESIGNATOR sy-vline 
WA_CMPEOACOMP_STR-MFGREFSTRUCITMREFDSGNTRDESC sy-vline 
WA_CMPEOACOMP_STR-MFGREFSTRUCITMREFDSGNTRNAME sy-vline 
WA_CMPEOACOMP_STR-RELATEDRESERVATION sy-vline 
WA_CMPEOACOMP_STR-RELATEDRESERVATIONITEM sy-vline 
WA_CMPEOACOMP_STR-RELATEDRECORDTYPE sy-vline 
WA_CMPEOACOMP_STR-RELATEDOPACTYNTWKINSTANCE sy-vline 
WA_CMPEOACOMP_STR-RELATEDOPACTYNTWKELEMENT sy-vline 
WA_CMPEOACOMP_STR-LEADINGRESERVATION sy-vline 
WA_CMPEOACOMP_STR-LEADINGRESERVATIONITEM sy-vline 
WA_CMPEOACOMP_STR-LEADINGRESERVATIONRECORDTYPE sy-vline 
WA_CMPEOACOMP_STR-LEADINGOPACTYNTWKINSTANCE sy-vline 
WA_CMPEOACOMP_STR-LEADINGOPACTYNTWKELEMENT sy-vline 
WA_CMPEOACOMP_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_CMPEOACOMP_STR-BILLOFMATERIAL sy-vline 
WA_CMPEOACOMP_STR-BILLOFMATERIALINTERNALID sy-vline 
WA_CMPEOACOMP_STR-BOMITEM sy-vline 
WA_CMPEOACOMP_STR-BOMITEMINTERNALCHANGECOUNT sy-vline 
WA_CMPEOACOMP_STR-BILLOFOPERATIONSTYPE sy-vline 
WA_CMPEOACOMP_STR-BILLOFOPERATIONSGROUP sy-vline 
WA_CMPEOACOMP_STR-BOOOPBOMITEMINTERNALID sy-vline 
WA_CMPEOACOMP_STR-LOGICALCOMPONENT sy-vline 
WA_CMPEOACOMP_STR-MFGREFSTRUCBOMLEAFASSGMTUUID sy-vline 
WA_CMPEOACOMP_STR-MFGREFSTRUCTUREITEMDETAILUUID sy-vline 
WA_CMPEOACOMP_STR-MFGREFSTRUCITMDETISCONTEXTUAL sy-vline 
WA_CMPEOACOMP_STR-OPERATIONACTIVITY sy-vline 
WA_CMPEOACOMP_STR-OPERATIONACTYVERSIONCOUNTER sy-vline 
WA_CMPEOACOMP_STR-ORDERINTERNALID sy-vline 
WA_CMPEOACOMP_STR-ORDEROPERATIONINTERNALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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