ABAP Select data from SAP table ICNTRCTOPTN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICNTRCTOPTN
*  INTO TABLE @DATA(IT_ICNTRCTOPTN2).
*--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_ICNTRCTOPTN INDEX 1 INTO DATA(WA_ICNTRCTOPTN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICNTRCTOPTN>-MANDT = 1.
<ICNTRCTOPTN>-TRADINGCONTRACTNUMBER = 1.
<ICNTRCTOPTN>-TRADINGCONTRACTITEM = 1.
<ICNTRCTOPTN>-ACMCONTRACTOPTIONBUYERSELLER = 1.
<ICNTRCTOPTN>-ACMTRADINGCONTRACTOPTIONSTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICNTRCTOPTN-CONTRACTOPTIONSDECLARATIONDATE, sy-vline,
  WA_ICNTRCTOPTN-ACMCONTRACTOPTIONSCROPSEASONID, sy-vline,
  WA_ICNTRCTOPTN-SOURCELOCATION, sy-vline,
  WA_ICNTRCTOPTN-MODEOFTRANSPORT, sy-vline,
  WA_ICNTRCTOPTN-MEANSOFTRANSPORT, sy-vline,
  WA_ICNTRCTOPTN-ACMCONTRACTOPTIONSTYPENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICNTRCTOPTN 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_ICNTRCTOPTN 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_ICNTRCTOPTN INTO WA_ICNTRCTOPTN.


*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 TRADINGCONTRACTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICNTRCTOPTN-TRADINGCONTRACTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICNTRCTOPTN-TRADINGCONTRACTNUMBER.
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_ICNTRCTOPTN_STR, 
MANDT TYPE STRING,
TRADINGCONTRACTNUMBER TYPE STRING,
TRADINGCONTRACTITEM TYPE STRING,
ACMCONTRACTOPTIONBUYERSELLER TYPE STRING,
ACMTRADINGCONTRACTOPTIONSTYPE TYPE STRING,
CONTRACTOPTIONSDECLARATIONDATE TYPE STRING,
ACMCONTRACTOPTIONSCROPSEASONID TYPE STRING,
SOURCELOCATION TYPE STRING,
MODEOFTRANSPORT TYPE STRING,
MEANSOFTRANSPORT TYPE STRING,
ACMCONTRACTOPTIONSTYPENAME TYPE STRING,
CONTRACTOPTIONSBUYERSELLERNAME TYPE STRING,
ACMCROPSEASONTEXT TYPE STRING,
MODEOFTRANSPORTDESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICNTRCTOPTN_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_ICNTRCTOPTN_STR-MANDT sy-vline 
WA_ICNTRCTOPTN_STR-TRADINGCONTRACTNUMBER sy-vline 
WA_ICNTRCTOPTN_STR-TRADINGCONTRACTITEM sy-vline 
WA_ICNTRCTOPTN_STR-ACMCONTRACTOPTIONBUYERSELLER sy-vline 
WA_ICNTRCTOPTN_STR-ACMTRADINGCONTRACTOPTIONSTYPE sy-vline 
WA_ICNTRCTOPTN_STR-CONTRACTOPTIONSDECLARATIONDATE sy-vline 
WA_ICNTRCTOPTN_STR-ACMCONTRACTOPTIONSCROPSEASONID sy-vline 
WA_ICNTRCTOPTN_STR-SOURCELOCATION sy-vline 
WA_ICNTRCTOPTN_STR-MODEOFTRANSPORT sy-vline 
WA_ICNTRCTOPTN_STR-MEANSOFTRANSPORT sy-vline 
WA_ICNTRCTOPTN_STR-ACMCONTRACTOPTIONSTYPENAME sy-vline 
WA_ICNTRCTOPTN_STR-CONTRACTOPTIONSBUYERSELLERNAME sy-vline 
WA_ICNTRCTOPTN_STR-ACMCROPSEASONTEXT sy-vline 
WA_ICNTRCTOPTN_STR-MODEOFTRANSPORTDESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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