MySQL Datatype to Store Datalink Object in JDBC

A DATALINK object represents an URL value which refers to an external resource (outside the current database/data source), which can be a file, directory etc..

MySQL does not provide any separate datatype to store DATALINK/URL value you need to store using TEXT or VARCHAR datatypes as shown in the following query −

CREATE TABLE tutorials_data (
   tutorial_id INT PRIMARY KEY AUTO_INCREMENT,
   tutorial_title VARCHAR(100),
   tutorial_author VARCHAR(40),
   submission_date date,
   tutorial_link VARCHAR(255)
);

Following JDBC program establishes a connection with MYSQL database, creates a table with name tutorials_data. In this table we are creating a column with name tutorial_link which stores an URL value, for this column, we are using VARCHAR as datatype.

Example

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
public class CreateTable_Datalink {
   public static void main(String args[])throws Exception {
      //Registering the Driver
      DriverManager.registerDriver(new com.mysql.jdbc.Driver());
      //Getting the connection
      String mysqlUrl = "jdbc:mysql://localhost/sampledatabase";
      Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");
      System.out.println("Connection established......");
      //Creating a Statement object
      Statement stmt = con.createStatement();
      //Query to create a tutorials_data table
      String query = "CREATE TABLE Customers("
         + "ID INT NOT NULL, "
         + "NAME VARCHAR (20) NOT NULL, "
         + "AGE INT NOT NULL, "
         + "SALARY DECIMAL (18, 2), "
         + "ADDRESS VARCHAR (25), "
         + "Date Date, "
         + "PRIMARY KEY(ID))";
      //Executing the query
      stmt.execute(query);
      System.out.println("Table created ........");
   }
}

Output

Connection established......
Table created ........