Home > Articles

Administration Basics

  • Print
  • + Share This
This chapter is from the book

This chapter is from the book

Installing MySQL

MySQL is currently the most popular open-source database server. With recent developments, it provides numerous features that make it competitive with the big commercial packages. It is probably the easiest database to get started on, and there is no end of examples in using MySQL with various Java applications like Tomcat.

Downloading MySQL

Start by going to the main download page, http://www.mysql.com, and downloading the latest version, 4.0.16 as of this writing, for the appropriate platform. The page http://www.mysql.com/downloads/mysql-4.0.html lists all the various options. For my Windows XP machine, I chose the file mysql-4.0.16-win.zip, and for my Linux server, I used mysql-standard-4.0.16-pc-linuxi686.tar.gz.

You also need the Java Database Connectivity (JDBC) drivers for MySQL, which is a separate download from http://www.mysql.com/downloads/api-jdbc-stable.html. The current version, 3.0.9, comes in a gzipped or zipped file. Pick whatever is easier.

Installing MySQL

Installing MySQL is pretty easy. For Windows, just double-click the downloaded zip file to open it and run the setup.exe file inside. You get a few prompts, but you can just take the defaults, which means MySQL is installed in c:\mysql.

For Unix, you need to be user root to install MySQL. You can unpack the distribution anywhere you want. I typically use the /opt directory, but you can choose something else. After you install it, you need to go through a few steps to get it up and running. First, add a mysql user and group by typing

groupadd mysql
useradd -g mysql mysql

Now, cd into the distribution and execute the script to set up all the system tables:

cd /opt/mysql-standard-4.0.16-pc-linux-i686
chown -R mysql data
chgrp -R mysql . 

Again, this is only for Unix installations. Note that my directory reflects my installation of version 4.0.16; adjust as appropriate for your location and version.

For the JDBC driver package, you have to unpack it as well and locate the actual jar file, which is called mysql-connector-java-3.0.9-stable-bin.jar. Remember the discussion of $CATALINA_HOME/common and $CATALINA_HOME/shared in the last chapter? There you learned that all objects in these directories are available to all Web applications, but that the former are also available to Tomcat, whereas the latter are not. Here is an example of a situation where you need to use the common directory. Because you want Tomcat to maintain the database connection pool, you must put the MySQL JDBC driver jar into $CATALINA_HOME/common/lib.

Before you start MySQL, I should point out that by default, the default login to MySQL is the admin user, root, and there is no password. Obviously, you need to productionalize this area, but that is not the point in this chapter. If you do decide to change any of it now, or if you are using an existing MySQL installation that has modified these defaults, then remember to substitute your login information in my examples.

Starting MySQL on Linux

Starting MySQL on Linux is easy: just go to the distribution directory and type

bin/mysqld_safe --user=mysql &

You get a couple of startup messages and then you should be able to type the following to enter the command-line utility:


If you are successful, the command-line utility should respond with a message like the following:

Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2 to server version: 4.0.16-standard

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.


Then you know you are ready to go.

If for some reason you don't get this response, look in the data directory for an *.err file. Usually, this file tells you why the server could not start.

Starting MySQL on Windows

On Windows, it is easiest to install MySQL as a service and then start and stop the service. To do so, go to the bin directory of the MySQL installation, which is c:\mysql by default, and type the following:

mysqld --install

You should get the message Service successfully installed. Now, go into Services, under Control Panel, Administrative Tools; find the mysql service; and start it. If you'd like, you can set it to autostart when Windows starts.

Finally, you can test your installation by going back to the MySQL bin directory and typing


You should see the same response shown earlier, in the section "Starting MySQL on Linux."

Creating the Table

By default, MySQL comes with a system database called mysql. The first thing you have to do is create one for yourself, called unleashed. You do so by starting the client program and typing

create database unleashed

Now you can create and populate a table to hold various Tomcat-related resources. To simplify things, I've provided a sample SQL script, shown in Listing 3.3.

Listing 3.3 Table Create Script

use unleashed;

create table TomcatResources (
url varchar(255) not null,
title varchar(255) not null

insert into TomcatResources values (
'http://www.onjava.com/pub/a/onjava/2003/06/25/tomcat_tips.html? page=2&x-showcontent=off', 
'ONJava.com: Top Ten Tomcat Configuration Tips [Jun. 25, 2003]');

insert into TomcatResources values (
'The Jakarta Site - Apache Tomcat');

insert into TomcatResources values (
'Apache Jakarta Tomcat 4 and 5: Configuration and Usage Tutorial');

insert into TomcatResources values (
'Java Guru: Tomcat FAQ Home Page');

Because the point is to test database connectivity, I'm not loading up the table (yet) with the many considerable Tomcat-related resources on the Net!

To run this script, all you have to do is save it as something like unleashed.sql and type

mysql < unleashed.sql

This creates and populates your table. If you want to make sure, go back into the command-line utility, change databases, and select from the table:

use unleashed;
select * from TomcatResources;

With our database and table ready, we can now hook it up to Tomcat.

  • + Share This
  • 🔖 Save To Your Account

InformIT Promotional Mailings & Special Offers

I would like to receive exclusive offers and hear about products from InformIT and its family of brands. I can unsubscribe at any time.


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information

To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.


Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.


If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information

Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.


This site is not directed to children under the age of 13.


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information

If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information

Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents

California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure

Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact

Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice

We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020