Performance of Inserting Rows with a PreparedStatement

This section describes how to measure the performance of inserting rows using a PreparedStatement object.

Running SQL statements using PreparedStatement objects is supposed to be faster than using regular Statement objects. To test this, I wrote the following Java program to measure the performance of inserting rows using a PreparedStatement object into an empty table:

/* DerbyPerformancePreparedStatement.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.util.*;
import java.sql.*;
import javax.sql.*;
import javax.naming.*;
public class DerbyPerformancePreparedStatement {
  public static void main(String [] args) {
    Connection con = null;
    try {
      Hashtable env = new Hashtable();
      env.put(Context.INITIAL_CONTEXT_FACTORY,
        "com.sun.jndi.fscontext.RefFSContextFactory");
      env.put(Context.PROVIDER_URL, "file:/local/fscontext");
      Context ctx = new InitialContext(env);
      DataSource ds = (DataSource) ctx.lookup("DerbyTestDB");
      con = ds.getConnection();

// Delete all rows from the table
      Statement sta = con.createStatement();
      sta.executeUpdate("DELETE FROM Profile");

// Start the test
     int count = 10000;
     long t1 = System.currentTimeMillis();

// PreparedStatement to insert rows
      PreparedStatement ps = con.prepareStatement(
  "INSERT INTO Profile (FirstName, LastName) VALUES (?, ?)");
      Random r = new Random();
      for (int i=0; i<count; i++) {
        ps.setString(1,Integer.toHexString(r.nextInt(9999)));
        ps.setString(2,Integer.toHexString(r.nextInt(999999)));
        ps.executeUpdate();
      }
      ps.close();

// End the test
     long t2 = System.currentTimeMillis();
     System.out.println("PreparedStatement insert "+count
         +" rows with "+(t2 -t1) +" milliseconds");

      con.close();
    } catch (Exception e) {
      System.err.println("Exception: "+e.getMessage());
      e.printStackTrace();
    }
  }
}

Here is the result on a Windows XP system with a 997MHz processor. You should compare this with the result the next tutorial.

PreparedStatement insert 10000 rows with 7953 milliseconds

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Installing and Running Java DB - Derby

 Derby (Java DB) JDBC Driver

 Derby (Java DB) JDBC DataSource Objects

 Java DB (Derby) - DML Statements

 Java DB (Derby) - ResultSet Objects of Queries

Java DB (Derby) - PreparedStatement

 PreparedStatement Overview

 PreparedStatement with Parameters

 PreparedStatement in Batch Mode

Performance of Inserting Rows with a PreparedStatement

 Performance of Inserting Rows with a Regular Statement

 Performance of Inserting Rows with a ResultSet

 Summary of JDBC Drivers and Database Servers

 Using Connection Pool with JDBC

 Archived Tutorials

 References

 Full Version in PDF/EPUB