How to delete a table in mysql

Consider a situation where we need to delete a table from a database.

Consider a situation where we need to delete a table from a database.

How to Delete a Table in MySQL

Consider a situation where we need to delete a table from a database.

To delete a table from the database firstly we need to make a connection with the database. When the connection has been established pass a query for deleting a table inside the prepareStatement() method and it will return the PreparedStatement object. Now call the method executeUpdate() of the PreparedStatement interface which will helps us to know the status of the program.

The code of the program is given below:


import javax.servlet.*;

import javax.servlet.http.*;

import java.io.*;

import java.sql.*;



public class ServletDeletingTable 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("drop table emp_sal");

  int i = pst.executeUpdate();

  if (i==0){

  pw.println("Table has been deleted");

  }

  else{

  pw.println("Table has not been deleted");

  }

  }

  catch(Exception e){

  pw.println("The exception is " + e);

  }

  }

}

XML File for this program:


<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app

 PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

 "http://java.sun.com/dtd/web-app_2_3.dtd">



<web-app>

 <servlet>

 <servlet-name>Zulfiqar</servlet-name>

 <servlet-class>ServletDeletingTable</servlet-class>

 </servlet>

 <servlet-mapping>

 <servlet-name>Zulfiqar</servlet-name>

 <url-pattern>/ServletDeletingTable</url-pattern>

 </servlet-mapping>

</web-app>

Table in the database before deletion:

The output of the program is given below:

Table in the database after deletion:

mysql> select * from emp_sal;
ERROR 1146 (42S02): Table 'zulfiqar.emp_sal' doesn't exist

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