CLOB: Insert A CLOB with pure SQL Statement via ODBC ou OLEDB

I've seen all the answers about inserting a clob. I use a french developpement tool called Windev to access an 9i Oracle Database via ODBC.  I would like to insert text into a clob field only with sql instructions. My concern is : when I make a copy & paste of the text into Access2000 with table linked by ODBC, it works fine. (he uses a sql statement with returning, statement which failed under TOAD). What should I do to make it works ?

Thanks for your help