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Q) Creating PreparedStatement object



A)
->By calling “prepareStatement()” method on connection object, preparedStatement object in created.
Examples:
1)       PreparedStatement ps1 = con.PreparedStatement (“INSERT INTO ACCOUNT VALUES (?,?,?)”);

Here  “ ? ” means “ place holder ”.

2)       PreparedStatement ps2 = con.PreparedStatement (“UPDATE ACCOUNT SET BALANCE = BALANCE+? WHERE ACCNO=?”);
3)      PreparedStatement ps3 = con.PreparedStatement (“DELETE FROM ACCOUNT WHERE ACCNO=?”);
4)      PreparedStatement ps4 = con.PreparedStatement (“SELECT BALANCE FROM ACCOUNT WHERE ACCNO=?”);

                                        



Note:
Object oriented representation of (encapsulation of) a pre-compiled/already prepared SQL statement. Is nothing but PreparedStatement object.

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