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:

/* OraclePerformancePreparedStatement.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.sql.*;
public class OraclePerformancePreparedStatement {
  public static void main(String [] args) {
    Connection con = null;
    try {
      oracle.jdbc.pool.OracleDataSource ds
        = new oracle.jdbc.pool.OracleDataSource();
      ds.setDriverType("thin");
      ds.setServerName("localhost");
      ds.setPortNumber(1521);
      ds.setDatabaseName("XE");
      ds.setUser("Herong");
      ds.setPassword("TopSecret");
      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 (ID, FirstName, LastName)"
  + " VALUES (?, ?, ?)");
      java.util.Random r = new java.util.Random();
      for (int i = 0; i < count; i++) {
        ps.setInt(1,i+1);
        ps.setString(2,Integer.toHexString(r.nextInt(9999)));
        ps.setString(3,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) {
      e.printStackTrace();
    }
  }
}

The table below shows execution results with different computer environments:

macOS 10, 2.6 GHz processor, JDK 15, Oracle 21.3 and odbc11.jar
  PreparedStatement insert 10000 rows with 9962 milliseconds

Windows 10, 3.6 GHz processor, JDK 17, Oracle 21.3 and odbc11.jar
  PreparedStatement insert 10000 rows with 14281 milliseconds

Windows 7, 2.5 GHz processor, JDK 1.8, Oracle 11.2 and odbc6.jar
  PreparedStatement insert 10000 rows with 22574 milliseconds

Windows XP, 997 MHz processor, JDK 1.6, Oracle 10.2 and odbc14.jar
  PreparedStatement insert 10000 rows with 7843 milliseconds

I am very surprised to see that my old Windows XP computer performed much better my new computers!

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

 Oracle - Reference Implementation of JdbcRowSet

Oracle - 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

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Archived Tutorials

 References

 Full Version in PDF/EPUB