import java.io.*; import java.sql.*; import javax.servlet.*; import javax.servlet.http.*; public class ServletAddingNewColumn extends HttpServlet{ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ response.setContentType("text/html"); PrintWriter pw = response.getWriter(); String connectionURL = "jdbc:mysql://localhost/zulfiqar"; Connection connection; try{ Class.forName("org.gjt.mm.mysql.Driver"); connection = DriverManager.getConnection(connectionURL, "root", "admin"); PreparedStatement pst = connection.prepareStatement("alter table emp_details add column sal int(5)"); int i = pst.executeUpdate(); if (i==1){ pw.println("Column has been added"); } else{ pw.println("No column has been added"); } } catch(Exception e){ pw.println("The exception is " + e); } } }