ABAP Select data from SAP table CMLLINEITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMLLINEITEM
*  INTO TABLE @DATA(IT_CMLLINEITEM2).
*--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_CMLLINEITEM INDEX 1 INTO DATA(WA_CMLLINEITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMLLINEITEM>-MANDT = 1.
<CMLLINEITEM>-COMPANYCODE = 1.
<CMLLINEITEM>-PLANT = 1.
<CMLLINEITEM>-LEDGER = 1.
<CMLLINEITEM>-GLACCOUNT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMLLINEITEM-MATERIALGROUP, sy-vline,
  WA_CMLLINEITEM-MATERIAL, sy-vline,
  WA_CMLLINEITEM-BUSINESSTRANSACTIONTYPE, sy-vline,
  WA_CMLLINEITEM-POSTINGDATE, sy-vline,
  WA_CMLLINEITEM-ACCOUNTINGDOCUMENT, sy-vline,
  WA_CMLLINEITEM-CHARTOFACCOUNTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMLLINEITEM 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_CMLLINEITEM 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_CMLLINEITEM INTO WA_CMLLINEITEM.


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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field LEDGERFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CMLLINEITEM-LEDGERFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMLLINEITEM-LEDGERFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field PRODUCTIONORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMLLINEITEM-PRODUCTIONORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMLLINEITEM-PRODUCTIONORDER.
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_CMLLINEITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
LEDGER TYPE STRING,
GLACCOUNT TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
BUSINESSTRANSACTIONTYPE TYPE STRING,
POSTINGDATE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
COSTCENTER TYPE STRING,
PROFITCENTER TYPE STRING,
SEGMENT TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,
FISCALPERIOD TYPE STRING,
LEDGERFISCALYEAR TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
MATERIALVALUATIONCLASS TYPE STRING,
INVENTORYVALUATIONCATEGORY TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
DOCUMENTDATE TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PRODUCTIONORDER TYPE STRING,
ACCOUNTINGDOCCREATEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
MATERIALLEDGERPROCESSTYPE TYPE STRING,
MATERIALLEDGERCATEGORY TYPE STRING,
INVENTORYQTY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
SLSPRICEAMOUNTINCOCODECRCY TYPE STRING,
AMOUNTINGROUPCURRENCY TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY1 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY2 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY3 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY4 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY5 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY6 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY7 TYPE STRING,
AMOUNTINFREEDEFINEDCURRENCY8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMLLINEITEM_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_CMLLINEITEM_STR-MANDT sy-vline 
WA_CMLLINEITEM_STR-COMPANYCODE sy-vline 
WA_CMLLINEITEM_STR-PLANT sy-vline 
WA_CMLLINEITEM_STR-LEDGER sy-vline 
WA_CMLLINEITEM_STR-GLACCOUNT sy-vline 
WA_CMLLINEITEM_STR-MATERIALGROUP sy-vline 
WA_CMLLINEITEM_STR-MATERIAL sy-vline 
WA_CMLLINEITEM_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_CMLLINEITEM_STR-POSTINGDATE sy-vline 
WA_CMLLINEITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CMLLINEITEM_STR-CHARTOFACCOUNTS sy-vline 
WA_CMLLINEITEM_STR-COSTCENTER sy-vline 
WA_CMLLINEITEM_STR-PROFITCENTER sy-vline 
WA_CMLLINEITEM_STR-SEGMENT sy-vline 
WA_CMLLINEITEM_STR-INVENTORYVALUATIONTYPE sy-vline 
WA_CMLLINEITEM_STR-FISCALPERIOD sy-vline 
WA_CMLLINEITEM_STR-LEDGERFISCALYEAR sy-vline 
WA_CMLLINEITEM_STR-FISCALYEARPERIOD sy-vline 
WA_CMLLINEITEM_STR-MATERIALVALUATIONCLASS sy-vline 
WA_CMLLINEITEM_STR-INVENTORYVALUATIONCATEGORY sy-vline 
WA_CMLLINEITEM_STR-LEDGERGLLINEITEM sy-vline 
WA_CMLLINEITEM_STR-REFERENCEDOCUMENT sy-vline 
WA_CMLLINEITEM_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_CMLLINEITEM_STR-DOCUMENTDATE sy-vline 
WA_CMLLINEITEM_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CMLLINEITEM_STR-PURCHASINGDOCUMENT sy-vline 
WA_CMLLINEITEM_STR-PRODUCTIONORDER sy-vline 
WA_CMLLINEITEM_STR-ACCOUNTINGDOCCREATEDBYUSER sy-vline 
WA_CMLLINEITEM_STR-LASTCHANGEDATETIME sy-vline 
WA_CMLLINEITEM_STR-MATERIALLEDGERPROCESSTYPE sy-vline 
WA_CMLLINEITEM_STR-MATERIALLEDGERCATEGORY sy-vline 
WA_CMLLINEITEM_STR-INVENTORYQTY sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_CMLLINEITEM_STR-SLSPRICEAMOUNTINCOCODECRCY sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINGROUPCURRENCY sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY1 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY2 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY3 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY4 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY5 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY6 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY7 sy-vline 
WA_CMLLINEITEM_STR-AMOUNTINFREEDEFINEDCURRENCY8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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