JDBC Performance : Metadata DB Info « Database SQL JDBC « Java

JDBC Performance


MySQL and Java Developer's Guide

Mark Matthews, Jim Cole, Joseph D. Gradecki
Publisher Wiley,
Published February 2003, 
ISBN 0471269239


import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Date;

public class Performance {
  Connection connection;

  public Performance() {
    try {
    } catch (Exception e) {
      System.err.println("unable to load driver");
    try {
      connection = DriverManager
    } catch (SQLException e) {
      System.out.println("SQLException: " + e.getMessage());
      System.out.println("SQLState: " + e.getSQLState());
      System.out.println("VendorError:  " + e.getErrorCode());

  public void run() {
    long startTime;

    try {
       * PreparedStatement ps = connection.prepareStatement("INSERT INTO
       * product VALUES(null, 'title', 5.54, 'supplier', null, ?)");
       * startTime = new Date().getTime(); for (int i=0;i <1000;i++) {
       * ps.setInt(1, i); ps.executeUpdate(); } System.out.println("INSERT = " +
       * ((new Date().getTime()) - startTime));
      Statement statement = connection.createStatement();
      startTime = new Date().getTime();
      for (int i = 0; i < 60; i++) {
        ResultSet rs = statement
            .executeQuery("SELECT pic_id, length, tlength, ts FROM them limit 100, "
                + (i * 1000));

      //      ResultSet rs = statement.executeQuery("SELECT pic_id, length,
      // tlength, ts FROM them");
      //      rs.close();

      System.out.println("SELECT = "
          + ((new Date().getTime()) - startTime));

       * ps = connection.prepareStatement("UPDATE product SET inventory=10
       * WHERE inventory = ?"); startTime = new Date().getTime(); for (int
       * i=0;i <1000;i++) { ps.setInt(1, i); ps.executeUpdate(); }
       * System.out.println("UPDATE = " + ((new Date().getTime()) -
       * startTime));
    } catch (SQLException e) {

  public static void main(String[] args) {
    Performance test = new Performance();

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25.JDBC Version App
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28.Listing the Numeric Functions Supported by a Database
29.Listing the System Functions Supported by a Database
30.Listing the Time and Date Functions Supported by a Database
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