ABAP Select data from SAP table ICOMONCONNORML into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICOMONCONNORML
*  INTO TABLE @DATA(IT_ICOMONCONNORML2).
*--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_ICOMONCONNORML INDEX 1 INTO DATA(WA_ICOMONCONNORML2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICOMONCONNORML>-MANDT = 1.
<ICOMONCONNORML>-PURCHASECONTRACT = 1.
<ICOMONCONNORML>-QUANTITYFULFILLMENTPERCENT = 1.
<ICOMONCONNORML>-CONTRACTCONSUMPTIONRATIO = 1.
<ICOMONCONNORML>-PURCONTRWGTDVAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICOMONCONNORML-WEIGHTEDRELEVANCE, sy-vline,
  WA_ICOMONCONNORML-PURCHASECONTRACTTARGETAMOUNT, sy-vline,
  WA_ICOMONCONNORML-AMOUNTFULFILLMENTPERCENT, sy-vline,
  WA_ICOMONCONNORML-PURCHASECONTRACTTYPE, sy-vline,
  WA_ICOMONCONNORML-PURCHASECONTRACTCLASSIFICATION, sy-vline,
  WA_ICOMONCONNORML-PURCHASECONTRACTCONSUMEDAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICOMONCONNORML 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_ICOMONCONNORML 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_ICOMONCONNORML INTO WA_ICOMONCONNORML.


*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_ICOMONCONNORML-PURCHASECONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOMONCONNORML-PURCHASECONTRACT.
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_ICOMONCONNORML_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
QUANTITYFULFILLMENTPERCENT TYPE STRING,
CONTRACTCONSUMPTIONRATIO TYPE STRING,
PURCONTRWGTDVAL TYPE STRING,
WEIGHTEDRELEVANCE TYPE STRING,
PURCHASECONTRACTTARGETAMOUNT TYPE STRING,
AMOUNTFULFILLMENTPERCENT TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
PURCHASECONTRACTCLASSIFICATION TYPE STRING,
PURCHASECONTRACTCONSUMEDAMOUNT TYPE STRING,
CONTRACTCONSUMPTIONINPCT TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICOMONCONNORML_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_ICOMONCONNORML_STR-MANDT sy-vline 
WA_ICOMONCONNORML_STR-PURCHASECONTRACT sy-vline 
WA_ICOMONCONNORML_STR-QUANTITYFULFILLMENTPERCENT sy-vline 
WA_ICOMONCONNORML_STR-CONTRACTCONSUMPTIONRATIO sy-vline 
WA_ICOMONCONNORML_STR-PURCONTRWGTDVAL sy-vline 
WA_ICOMONCONNORML_STR-WEIGHTEDRELEVANCE sy-vline 
WA_ICOMONCONNORML_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_ICOMONCONNORML_STR-AMOUNTFULFILLMENTPERCENT sy-vline 
WA_ICOMONCONNORML_STR-PURCHASECONTRACTTYPE sy-vline 
WA_ICOMONCONNORML_STR-PURCHASECONTRACTCLASSIFICATION sy-vline 
WA_ICOMONCONNORML_STR-PURCHASECONTRACTCONSUMEDAMOUNT sy-vline 
WA_ICOMONCONNORML_STR-CONTRACTCONSUMPTIONINPCT sy-vline 
WA_ICOMONCONNORML_STR-VALIDITYSTARTDATE sy-vline 
WA_ICOMONCONNORML_STR-VALIDITYENDDATE sy-vline 
WA_ICOMONCONNORML_STR-CREATEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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