![]() ![]() Also, the three methods execute, executeQuery, and executeUpdate are modified so that they take no argument. In addition, it adds a set of methods that are needed for setting the values to be sent to the database in place of the placeholders for IN parameters. Consequently, an SQL statement that is executed many times is often created as a PreparedStatement object to increase efficiency.īeing a subclass of Statement, PreparedStatement inherits all the functionality of Statement. ![]() An application must set a value for each question mark in a prepared statement before executing the prepared statement.īecause PreparedStatement objects are precompiled, their execution can be faster than that of Statement objects. The "?" is also known as a parameter marker. Instead, the statement has a question mark ("?") as a placeholder for each IN parameter. An IN parameter is a parameter whose value is not specified when the SQL statement is created.
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