sql = "select * from abcd where name = ?,aaa = ? ";
PreparedStatement pstmt = conn.prepareStatement(sql);
ps.setString(1,"NameYourSearch"); or ps.setNull(1,Types.STRING);
ps.setString(2,"aaa"); or ps.setNull(1,Types.STRING);
sql = "select * from abcd where name = ? ";
PreparedStatement pstmt = conn.prepareStatement(sql);
ps.setString(1,"NameYourSearch"); or ps.setNull(1,Types.STRING);