Is there a way to tell what is actually being passed to DB from PreparedSta

Question

Is there a way to tell what is actually being passed to DB from PreparedStatement? What I mean by that is that I have a PreparedStatement that is a simple
prepstmt = connection.prepareStatement("Insert into table (col1, col2, col3, .... colx) values (?,?,?....?)");
(there are x ?s)
I precompile this, and later, when there is a connection I call set all the variables
prepstmt.setInt(1, someint); prepstmt.setString(2, "\\'" + somestring + "\\'"); etc... prepstmt.executeUpdate();
I get back an exception thrown by Oracle complaining that one of my values is too large for the column (but doesn't say what column/value).
So I made a string that contains what ought to be the same query
String debug = "Insert into table (col1, col2, col3, .... colx) values (someint,'somestring',etc....someotherint)"; System.out.println(debug);
I give the printed out line directly to Oracle through SQLScratchpad and it works just fine in there and I can confirm the row has been inserted. Nothing is too big.
Is there a way to look at what the PreparedStatement actually has as values in there? I found I could look at the original statement (the one with the ?s) if I expand the prepstmt object in the debugger's (Eclipse) view, but nothing to show me where the values were filled in.
Thanks for any help you can give me.

Answer 1

Hrm, I'm suspecting that perhaps it has to do something with setting CHAR fields. Some of the fields in this table are CHAR but I don't see a call in my PreparedStatement that can set a char, only a String, so that's what I've been using, but it may be that that's not the right thing to do. I'm running Java 1.5.10, and looking through the API there doesn't seem to be anything specifically for char.