ABAP Select data from SAP table CMM_S_ROBJ_BASE_KOMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMM_S_ROBJ_BASE_KOMP
*  INTO TABLE @DATA(IT_CMM_S_ROBJ_BASE_KOMP2).
*--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_CMM_S_ROBJ_BASE_KOMP INDEX 1 INTO DATA(WA_CMM_S_ROBJ_BASE_KOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMM_S_ROBJ_BASE_KOMP>-PRICINGDOCUMENTITEM = 1.
<CMM_S_ROBJ_BASE_KOMP>-MATERIAL = 1.
<CMM_S_ROBJ_BASE_KOMP>-PLANT = 1.
<CMM_S_ROBJ_BASE_KOMP>-STORAGELOCATION = 1.
<CMM_S_ROBJ_BASE_KOMP>-MATERIALGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMM_S_ROBJ_BASE_KOMP-NETPRICEAMOUNT, sy-vline,
  WA_CMM_S_ROBJ_BASE_KOMP-DOCUMENTCURRENCY, sy-vline,
  WA_CMM_S_ROBJ_BASE_KOMP-QUANTITYINBASEUNIT, sy-vline,
  WA_CMM_S_ROBJ_BASE_KOMP-BASEUNIT, sy-vline,
  WA_CMM_S_ROBJ_BASE_KOMP-QUANTITY, sy-vline,
  WA_CMM_S_ROBJ_BASE_KOMP-ORDERQUANTITYUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMM_S_ROBJ_BASE_KOMP 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_CMM_S_ROBJ_BASE_KOMP 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_CMM_S_ROBJ_BASE_KOMP INTO WA_CMM_S_ROBJ_BASE_KOMP.


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

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

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

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

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

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

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

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

*Conversion exit TSTPS, internal->external for field P_VERSION
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CMM_S_ROBJ_BASE_KOMP-P_VERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMM_S_ROBJ_BASE_KOMP-P_VERSION.
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_CMM_S_ROBJ_BASE_KOMP_STR, 
PRICINGDOCUMENTITEM TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
MATERIALGROUP TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
QUANTITYINBASEUNIT TYPE STRING,
BASEUNIT TYPE STRING,
QUANTITY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
PRICINGREFERENCEMATERIAL TYPE STRING,
BUSINESSPARTNER TYPE STRING,
PDUMMY TYPE STRING,
CATEGORY_ID TYPE STRING,
INDUSTRY TYPE STRING,
SSPARTE TYPE STRING,
TTARIF TYPE STRING,
NAME TYPE STRING,
VORNAME TYPE STRING,
VSNR TYPE STRING,
LAUFZEIT TYPE STRING,
ANNUAL_PREMIUM TYPE STRING,
CTRTST_ID TYPE STRING,
BUCAGR_ID TYPE STRING,
CTRTST TYPE STRING,
REM_BUSCASE_TYP TYPE STRING,
P_VERSION TYPE STRING,
P_CTRT_XL TYPE STRING,
P_CACSAPPL TYPE STRING,
P_STATE TYPE STRING,
MATERIALEXTERNALGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMM_S_ROBJ_BASE_KOMP_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_CMM_S_ROBJ_BASE_KOMP_STR-PRICINGDOCUMENTITEM sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-MATERIAL sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-PLANT sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-STORAGELOCATION sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-MATERIALGROUP sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-NETPRICEAMOUNT sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-DOCUMENTCURRENCY sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-QUANTITYINBASEUNIT sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-BASEUNIT sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-QUANTITY sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-ORDERQUANTITYUNIT sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-PRICINGREFERENCEMATERIAL sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-BUSINESSPARTNER sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-PDUMMY sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-CATEGORY_ID sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-INDUSTRY sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-SSPARTE sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-TTARIF sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-NAME sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-VORNAME sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-VSNR sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-LAUFZEIT sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-ANNUAL_PREMIUM sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-CTRTST_ID sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-BUCAGR_ID sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-CTRTST sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-REM_BUSCASE_TYP sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-P_VERSION sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-P_CTRT_XL sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-P_CACSAPPL sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-P_STATE sy-vline 
WA_CMM_S_ROBJ_BASE_KOMP_STR-MATERIALEXTERNALGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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