Problem inserting foreign languages into ms sql using java

hi there, i'm having a real problem here.

I have some foreign language encoded characters in the database. They are those characters that makes no sense when using the wrong charset to view them. Now I need to retrieve them from the database and re-insert as unicode so that they can be viewed properly.

Now the problem is this: when I retrieve them from the database using java, some characters tend to contain single quote (') or brackets in there, thus screwing up my whole update statement. Below is the coding I am using. It works when there isn't any single quotes or brackets.

Connection con = db.getConnection();
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select b.en_transID, b.trans_content from translations a, en_translations b where a.en_transID=b.en_transID and a.language_ID='3'");

while (rs.next())
{
String original = rs.getString("En_transID");
byte bytes[] = rs.getBytes("trans_content");
if (bytes != null)
{
String s = new String(bytes, "UTF-16LE");
s = new String(s.getBytes(), "big5");

Statement tempStmt = con.createStatement();
tempStmt.executeUpdate("update En_Translations set trans_content = (N'"+s+"') where En_transID = '"+original+"'");
tempStmt.close();
}

Is there any way to get around this? Please help! Will appreciate it very much!

I forgot to add. This is one of the errors that happened to me. Coz I always print out my sql statements to check for errors.

update En_Translations set trans_content = (N'(???????????????,??'?')') where En_transID = '733'