ABAP Select data from SAP table CMMQTYCONTRCNSM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMQTYCONTRCNSM
*  INTO TABLE @DATA(IT_CMMQTYCONTRCNSM2).
*--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_CMMQTYCONTRCNSM INDEX 1 INTO DATA(WA_CMMQTYCONTRCNSM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMQTYCONTRCNSM>-MANDT = 1.
<CMMQTYCONTRCNSM>-PURCHASECONTRACT = 1.
<CMMQTYCONTRCNSM>-PURCHASECONTRACTITEM = 1.
<CMMQTYCONTRCNSM>-ACCOUNTASSIGNMENTNUMBER = 1.
<CMMQTYCONTRCNSM>-PURCHASEORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMQTYCONTRCNSM-PURCHASEORDERITEM, sy-vline,
  WA_CMMQTYCONTRCNSM-PURCHASEORDERITEMUNIQUEID, sy-vline,
  WA_CMMQTYCONTRCNSM-FORMATTEDPURCHASECONTRACTITEM, sy-vline,
  WA_CMMQTYCONTRCNSM-SUPPLIER, sy-vline,
  WA_CMMQTYCONTRCNSM-SUPPLIERNAME, sy-vline,
  WA_CMMQTYCONTRCNSM-PURCHASINGGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMQTYCONTRCNSM 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_CMMQTYCONTRCNSM 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_CMMQTYCONTRCNSM INTO WA_CMMQTYCONTRCNSM.


*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_CMMQTYCONTRCNSM-PURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMQTYCONTRCNSM-PURCHASECONTRACT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMMQTYCONTRCNSM-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMQTYCONTRCNSM-ORDERQUANTITYUNIT.
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_CMMQTYCONTRCNSM_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
ACCOUNTASSIGNMENTNUMBER TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
PURCHASEORDERITEMUNIQUEID TYPE STRING,
FORMATTEDPURCHASECONTRACTITEM TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
PURCHASINGDOCUMENTTYPENAME TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
PURGDOCITEMCATEGORYNAME TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
PURGCATNAME TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
COSTCENTER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CALENDARYEAR TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,
VALIDITYENDDATE TYPE STRING,
CONTRACTEXPIRYPREDICTEDDATE TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
TARGETAMOUNT TYPE STRING,
TARGETQUANTITY TYPE STRING,
RELORDLVLCONTRACTTARGETAMOUNT TYPE STRING,
RELEASEORDERITEMNETAMOUNT TYPE STRING,
RELEASEORDERITEMORDERQUANTITY TYPE STRING,
PREDICTEDCONSUMPTIONAMOUNT TYPE STRING,
CONTRACTCONSUMPTIONINPCT TYPE STRING,
CONTRCNSMPNBYRELEASEORDERINPCT TYPE STRING,
PREDICTIVECONSUMPTIONINPCT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMQTYCONTRCNSM_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_CMMQTYCONTRCNSM_STR-MANDT sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASECONTRACT sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASECONTRACTITEM sy-vline 
WA_CMMQTYCONTRCNSM_STR-ACCOUNTASSIGNMENTNUMBER sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASEORDER sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASEORDERITEM sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASEORDERITEMUNIQUEID sy-vline 
WA_CMMQTYCONTRCNSM_STR-FORMATTEDPURCHASECONTRACTITEM sy-vline 
WA_CMMQTYCONTRCNSM_STR-SUPPLIER sy-vline 
WA_CMMQTYCONTRCNSM_STR-SUPPLIERNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGGROUP sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGGROUPNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-COMPANYCODE sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASECONTRACTTYPE sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGDOCUMENTTYPENAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURGDOCITEMCATEGORYNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-MATERIAL sy-vline 
WA_CMMQTYCONTRCNSM_STR-MATERIALNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-MATERIALGROUP sy-vline 
WA_CMMQTYCONTRCNSM_STR-MATERIALGROUPNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-PLANT sy-vline 
WA_CMMQTYCONTRCNSM_STR-PLANTNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURGCATNAME sy-vline 
WA_CMMQTYCONTRCNSM_STR-PURCHASINGCATEGORY sy-vline 
WA_CMMQTYCONTRCNSM_STR-COSTCENTER sy-vline 
WA_CMMQTYCONTRCNSM_STR-CREATEDBYUSER sy-vline 
WA_CMMQTYCONTRCNSM_STR-CALENDARYEAR sy-vline 
WA_CMMQTYCONTRCNSM_STR-CALENDARQUARTER sy-vline 
WA_CMMQTYCONTRCNSM_STR-CALENDARMONTH sy-vline 
WA_CMMQTYCONTRCNSM_STR-CALENDARWEEK sy-vline 
WA_CMMQTYCONTRCNSM_STR-VALIDITYENDDATE sy-vline 
WA_CMMQTYCONTRCNSM_STR-CONTRACTEXPIRYPREDICTEDDATE sy-vline 
WA_CMMQTYCONTRCNSM_STR-DISPLAYCURRENCY sy-vline 
WA_CMMQTYCONTRCNSM_STR-ORDERQUANTITYUNIT sy-vline 
WA_CMMQTYCONTRCNSM_STR-TARGETAMOUNT sy-vline 
WA_CMMQTYCONTRCNSM_STR-TARGETQUANTITY sy-vline 
WA_CMMQTYCONTRCNSM_STR-RELORDLVLCONTRACTTARGETAMOUNT sy-vline 
WA_CMMQTYCONTRCNSM_STR-RELEASEORDERITEMNETAMOUNT sy-vline 
WA_CMMQTYCONTRCNSM_STR-RELEASEORDERITEMORDERQUANTITY sy-vline 
WA_CMMQTYCONTRCNSM_STR-PREDICTEDCONSUMPTIONAMOUNT sy-vline 
WA_CMMQTYCONTRCNSM_STR-CONTRACTCONSUMPTIONINPCT sy-vline 
WA_CMMQTYCONTRCNSM_STR-CONTRCNSMPNBYRELEASEORDERINPCT sy-vline 
WA_CMMQTYCONTRCNSM_STR-PREDICTIVECONSUMPTIONINPCT sy-vline      INTO ld_text SEPARATED BY SPACE.

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