Presto’s JDBC interface is used to access Java application.

Prerequisites

Install presto-jdbc-0.150.jar

You can download the JDBC jar file by visiting the following link,

After the jar file has been downloaded, add it to the class path of your Java application.

Create a Simple Application

Let’s create a simple java application using JDBC interface.

Coding − PrestoJdbcSample.java

import java.sql.*; 
import com.facebook.presto.jdbc.PrestoDriver; 

//import presto jdbc driver packages here.  
public class PrestoJdbcSample {  
   public static void main(String[] args) {  
      Connection connection = null; 
      Statement statement = null;  
      try { 
         
         Class.forName("com.facebook.presto.jdbc.PrestoDriver");  
         connection = DriverManager.getConnection(
         "jdbc:presto://localhost:8080/mysql/tutorials", "tutorials", “"); 
         
         //connect mysql server tutorials database here 
         statement = connection.createStatement(); 
         String sql;  
         sql = "select auth_id, auth_name from mysql.tutorials.author”; 
        
         //select mysql table author table two columns  
         ResultSet resultSet = statement.executeQuery(sql);  
         while(resultSet.next()){  
            int id  = resultSet.getInt("auth_id"); 
            String name = resultSet.getString(“auth_name");  
            System.out.print("ID: " + id + ";nName: " + name + "n"); 
         }  
         
         resultSet.close(); 
         statement.close(); 
         connection.close(); 
         
      }catch(SQLException sqlException){ 
         sqlException.printStackTrace(); 
      }catch(Exception exception){ 
         exception.printStackTrace(); 
      } 
   } 
}

Save the file and quit the application. Now, start Presto server in one terminal and open a new terminal to compile and execute the result. Following are the steps −

Compilation

~/Workspace/presto/presto-jdbc $ javac -cp presto-jdbc-0.149.jar  PrestoJdbcSample.java

Execution

~/Workspace/presto/presto-jdbc $ java -cp .:presto-jdbc-0.149.jar  PrestoJdbcSample

Output

INFO: Logging initialized @146ms  
ID: 1; 
Name: Doug Cutting 
ID: 2; 
Name: James Gosling 
ID: 3; 
Name: Dennis Ritchie