both are objects for sending SQL statements to the database.
using statement we can send only one query to database but using PreparedStatement we can change the parameter of the query.
ex.(from java.sun.com )
PreparedStatement updateSales;
String updateString = "update COFFEES " +
"set SALES = ? where COF_NAME like ?";
updateSales = con.prepareStatement(updateString);
int [] salesForWeek = {175, 150, 60, 155, 90};
String [] coffees = {"Colombian", "French_Roast", "Espresso",
"Colombian_Decaf", "French_Roast_Decaf"};
int len = coffees.length;
for(int i = 0; i < len; i++) {
updateSales.setInt(1, salesForWeek[i]);
updateSales.setString(2, coffees[i]);
updateSales.executeUpdate();
}
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06-26-2008, 09:06 AM
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