ABAP Select data from SAP table CMMVALCONTRCNSM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMVALCONTRCNSM
*  INTO TABLE @DATA(IT_CMMVALCONTRCNSM2).
*--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_CMMVALCONTRCNSM INDEX 1 INTO DATA(WA_CMMVALCONTRCNSM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMVALCONTRCNSM>-MANDT = 1.
<CMMVALCONTRCNSM>-PURCHASECONTRACT = 1.
<CMMVALCONTRCNSM>-SUPPLIER = 1.
<CMMVALCONTRCNSM>-SUPPLIERNAME = 1.
<CMMVALCONTRCNSM>-PURCHASINGORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMVALCONTRCNSM-PURCHASINGORGANIZATIONNAME, sy-vline,
  WA_CMMVALCONTRCNSM-PURCHASINGGROUP, sy-vline,
  WA_CMMVALCONTRCNSM-PURCHASINGGROUPNAME, sy-vline,
  WA_CMMVALCONTRCNSM-COMPANYCODE, sy-vline,
  WA_CMMVALCONTRCNSM-PURCHASECONTRACTTYPE, sy-vline,
  WA_CMMVALCONTRCNSM-PURCHASINGDOCUMENTTYPENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMVALCONTRCNSM 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_CMMVALCONTRCNSM 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_CMMVALCONTRCNSM INTO WA_CMMVALCONTRCNSM.


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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMVALCONTRCNSM-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMVALCONTRCNSM-SUPPLIER.
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_CMMVALCONTRCNSM_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
PURCHASINGDOCUMENTTYPENAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
PURCHASECONTRACTTARGETAMOUNT TYPE STRING,
RELEASEORDERITEMNETAMOUNT TYPE STRING,
CONTRACTCONSUMPTIONRATIO TYPE STRING,
CONTRACTCONSUMPTIONINPCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMVALCONTRCNSM_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_CMMVALCONTRCNSM_STR-MANDT sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASECONTRACT sy-vline 
WA_CMMVALCONTRCNSM_STR-SUPPLIER sy-vline 
WA_CMMVALCONTRCNSM_STR-SUPPLIERNAME sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASINGGROUP sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASINGGROUPNAME sy-vline 
WA_CMMVALCONTRCNSM_STR-COMPANYCODE sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASECONTRACTTYPE sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASINGDOCUMENTTYPENAME sy-vline 
WA_CMMVALCONTRCNSM_STR-CREATEDBYUSER sy-vline 
WA_CMMVALCONTRCNSM_STR-CALENDARYEAR sy-vline 
WA_CMMVALCONTRCNSM_STR-CALENDARQUARTER sy-vline 
WA_CMMVALCONTRCNSM_STR-CALENDARMONTH sy-vline 
WA_CMMVALCONTRCNSM_STR-CALENDARWEEK sy-vline 
WA_CMMVALCONTRCNSM_STR-DISPLAYCURRENCY sy-vline 
WA_CMMVALCONTRCNSM_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_CMMVALCONTRCNSM_STR-RELEASEORDERITEMNETAMOUNT sy-vline 
WA_CMMVALCONTRCNSM_STR-CONTRACTCONSUMPTIONRATIO sy-vline 
WA_CMMVALCONTRCNSM_STR-CONTRACTCONSUMPTIONINPCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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