JDBC Sender - Wrong SELECT statement (Oracle driver)

Hi,
3 days ago I was having a problem with my JDBC Sender adapter [JDBC Sender adapter is reading but then there isn't the message in SXMB_MON; .
Finally I discovered what's wrong but I can't understant why is not working. When I deleted the "WHERE" condition in my SELECT statement all worked OK (except that I need the WHERE statement...).
Why that statement is not working in my JDBC Sender:
SELECT * FROM MATERIALES WHERE LEIDO<>'X'
and that statement works:
SELECT * FROM MATERIALES
The field "LEIDO" is my flag that I must set to X when I read with the UPDATE statement, so I need the where condition...

Thanks Christopher but still not working
I tried two new statements:
1 - Escaping: SELECT * FROM MATERIALES WHERE LEIDO <> 'X'
2 - Changing the operator symbol: SELECT * FROM MATERIALES WHERE LEIDO != 'X'
The nº1 gives me an error of invalid character
The nº2 has the same effect than the other symbol, the adapter reads from the DB but no XML message is generated and no payload to check what's happening... just a message ID without information and without a message generated in SXMB_MONI

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Message was edited by:
XIer

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