ABAP Select data from SAP table ICONTRITMQTY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICONTRITMQTY
*  INTO TABLE @DATA(IT_ICONTRITMQTY2).
*--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_ICONTRITMQTY INDEX 1 INTO DATA(WA_ICONTRITMQTY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICONTRITMQTY>-MANDT = 1.
<ICONTRITMQTY>-CONTRACTNUM = 1.
<ICONTRITMQTY>-CONTRACTITEM = 1.
<ICONTRITMQTY>-CONTRACTSUBITEM = 1.
<ICONTRITMQTY>-TRADINGCONTRACTITEMQUANTITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICONTRITMQTY-TRDGCONTRACTITEMUNITOFMEASURE, sy-vline,
  WA_ICONTRITMQTY-CONTRACTMATERIAL, sy-vline,
  WA_ICONTRITMQTY-CONTRACTPLANT, sy-vline,
  WA_ICONTRITMQTY-RELATEDDOCUMENTNUMBER, sy-vline,
  WA_ICONTRITMQTY-RELATEDDOCUMENTITEMNUMBER, sy-vline,
  WA_ICONTRITMQTY-TRADINGCONTRACTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICONTRITMQTY 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_ICONTRITMQTY 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_ICONTRITMQTY INTO WA_ICONTRITMQTY.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIERNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICONTRITMQTY-SUPPLIERNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICONTRITMQTY-SUPPLIERNAME.
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_ICONTRITMQTY_STR, 
MANDT TYPE STRING,
CONTRACTNUM TYPE STRING,
CONTRACTITEM TYPE STRING,
CONTRACTSUBITEM TYPE STRING,
TRADINGCONTRACTITEMQUANTITY TYPE STRING,
TRDGCONTRACTITEMUNITOFMEASURE TYPE STRING,
CONTRACTMATERIAL TYPE STRING,
CONTRACTPLANT TYPE STRING,
RELATEDDOCUMENTNUMBER TYPE STRING,
RELATEDDOCUMENTITEMNUMBER TYPE STRING,
TRADINGCONTRACTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
DOCUMENTDATE TYPE STRING,
TRADINGCONTRACTCREATEDBY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
COMMODITY TYPE STRING,
CUSTOMERNAME TYPE STRING,
SUPPLIERNAME TYPE STRING,
STORAGELOCATION TYPE STRING,
DOCUMENTSIDE TYPE STRING,
TRADINGCONTRCREATEDONDATETIME TYPE STRING,
TRADINGCONTRCHANGEDONDATETIME TYPE STRING,
TRADINGCONTRCREATEDONDATE TYPE STRING,
TRADINGCONTRCREATEDONTIME TYPE STRING,
TRADINGCONTRCHANGEDONDATE TYPE STRING,
TRADINGCONTRCHANGEDONTIME TYPE STRING,
ACMCONTRACTSTATUS TYPE STRING,
PRICINGDOCUMENT TYPE STRING,
PRICINGPROCEDURE TYPE STRING,
TRDGCONTRSRCEDOCTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICONTRITMQTY_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_ICONTRITMQTY_STR-MANDT sy-vline 
WA_ICONTRITMQTY_STR-CONTRACTNUM sy-vline 
WA_ICONTRITMQTY_STR-CONTRACTITEM sy-vline 
WA_ICONTRITMQTY_STR-CONTRACTSUBITEM sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRACTITEMQUANTITY sy-vline 
WA_ICONTRITMQTY_STR-TRDGCONTRACTITEMUNITOFMEASURE sy-vline 
WA_ICONTRITMQTY_STR-CONTRACTMATERIAL sy-vline 
WA_ICONTRITMQTY_STR-CONTRACTPLANT sy-vline 
WA_ICONTRITMQTY_STR-RELATEDDOCUMENTNUMBER sy-vline 
WA_ICONTRITMQTY_STR-RELATEDDOCUMENTITEMNUMBER sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRACTTYPE sy-vline 
WA_ICONTRITMQTY_STR-COMPANYCODE sy-vline 
WA_ICONTRITMQTY_STR-DOCUMENTDATE sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRACTCREATEDBY sy-vline 
WA_ICONTRITMQTY_STR-SALESORGANIZATION sy-vline 
WA_ICONTRITMQTY_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ICONTRITMQTY_STR-DIVISION sy-vline 
WA_ICONTRITMQTY_STR-PURCHASINGORGANIZATION sy-vline 
WA_ICONTRITMQTY_STR-PURCHASINGGROUP sy-vline 
WA_ICONTRITMQTY_STR-COMMODITY sy-vline 
WA_ICONTRITMQTY_STR-CUSTOMERNAME sy-vline 
WA_ICONTRITMQTY_STR-SUPPLIERNAME sy-vline 
WA_ICONTRITMQTY_STR-STORAGELOCATION sy-vline 
WA_ICONTRITMQTY_STR-DOCUMENTSIDE sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRCREATEDONDATETIME sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRCHANGEDONDATETIME sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRCREATEDONDATE sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRCREATEDONTIME sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRCHANGEDONDATE sy-vline 
WA_ICONTRITMQTY_STR-TRADINGCONTRCHANGEDONTIME sy-vline 
WA_ICONTRITMQTY_STR-ACMCONTRACTSTATUS sy-vline 
WA_ICONTRITMQTY_STR-PRICINGDOCUMENT sy-vline 
WA_ICONTRITMQTY_STR-PRICINGPROCEDURE sy-vline 
WA_ICONTRITMQTY_STR-TRDGCONTRSRCEDOCTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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