1. 2nd year Computer Science & Engineer
DataBase
2nd year Computer Science & Engineer
DataBase course notes 1

2. Database Design using MySQL
DataBase course notes 1

3. many books, tutorials, that describe MySQL and PHP
use of MySQL database server and client
MySQL and PHP originally appeared on Linux platform
Linux, Apache, Mysql, Php
Windows, Apache, Mysql, Php
DataBase course notes 1

4. www.mysql.com “world’s most popular Open Source database”
if you need MySQL for non-commercial use, you can download a copy free
DataBase course notes 1

5. Databases and Internet
in early days of the internet, websites were just static things
that required each page to be created manually
sales catalogue on the web
had to create page for every item in catalogue
create standard template page
retrieve product detail from database
create webpage “on the fly” for each product
DataBase course notes 1

6. Database Management System (DBMS)
management system decides how data is stored and retrieved, as well as controlling user access to it.
every time user retrieves data, deletes, change or adds more data, DBMS deals with the request
user cannot access data files directly, he can only talk to DBMS
management system is a barrier that controls access to the underlying data
DataBase course notes 1

7. Database MySQL can control several databases at once
DataBase course notes 1

8. Tables database is a container to store your tables in
table is a collection of data of a similar type
each table in a database has a unique name within that database, and that is how we refer to the table
DataBase course notes 1

9. Columns
any table will have a set of attributes, that is, a list of types of items that each table will store
we will refer to this attribute as a column
you would have called this a field
each column contains a specific type of data
each column in a table has a unique name within that table, and that is how we refer to the column
DataBase course notes 1

10. Relations database allowed to set up more than a table.
database systems are classed as relational, allows you to relate data in tables to data in other tables
in relational database theory, tables are called relations (columns are called attributes)
DataBase course notes 1

11. Rows
row (or record) are all different ways of referring to a line of data within a table
tuple is relational theory term for row, and record is the earlier form of databases term
DataBase course notes 1

12. Client-server Systems
DataBase course notes 1

13. Client-server Systems
data is stored on the server
when client needs to access data, it makes request to server
on receiving request, server takes necessary action, and sends its response back to client
response could be data, request for more details, or error message
one of the most widespread client-server systems is internet
DataBase course notes 1

14. Client-server Systems
client and server do not necessarily have to be on different machines
you can set up MySQL server software and client software on the same machine
system is still a client-server system even if it all runs in the same box
DataBase course notes 1

15. DBMS controls access to data
DataBase course notes 1

16. MySQL database behind website
DataBase course notes 1

17. user asks web browser (Internet Explorer, Mozilla Firefox, Opera) to look at webpage
request gets sent to webserver (Apache, Internet Information Services (IIS), formerly called Internet Information Server)
if that webpage is built using a scripting language such as PHP or ASP.NET, the request gets forwarded to the script processor
if script processor finds database commands (SQL) passes them to DBMS, that is, MySQL server or Oracle, Microsoft SQL Server, PostgreSQL, …
DataBase course notes 1

18. gets sent back to the user in HTML
database (DBMS) processes SQL, which is sent back to script processor as text
text is used to generate HTML along with other commands in scripting language
gets sent back to the user in HTML
finally gets processed by web browser into a webpage
happen very quickly, even when servers are on different machines
each server is specifically optimized to do its own task quickly, so they all work well together
DataBase course notes 1

19. Structured Query Language
as databases became more prominent, some standard method of obtaining information from them was required
does not really matter how DBMS stores data or controls access to it, as long as you get information that you want from it back in an acceptable way
standard way of communicating with database servers was needed
most of commands are standard across all SQL platforms
you should be able to transfer your knowledge of SQL to other DBMS quickly
DataBase course notes 1

20. more enterprise features free license
MySQL
MS SQL Server
lighter
free license
release 5
more enterprise features
free license
for Computer Science personnel
release 2005, 2008
DataBase course notes 1

21. Oracle Database 10g Express
SQL Server 2005 Express
SQL Server 2008 Express
Oracle Database 10g Express
DataBase course notes 1

22. Interactive SQL tutorial
Andrew Cumming - lecturer at Napier University in Edinburgh, Scotland, UK
DataBase course notes 1

23. MySQL Community Server is free MS SQL Server 2005/2008 Express
unix, windows, mac osx...
MS SQL Server 2005/2008 Express
totally free, but limited to max 1 GB bufferpool, max 1 processor, max 4 GB per database
Windows NT or 2000 or more
Oracle 11g Express
unix, windows, mac osx
DataBase course notes 1

24. Mimer IBM DB2 9.5 Express PostgreSQL
free downloads available for developers
unix, windows, mac osx, symbian ...
IBM DB2 9.5 Express
totally free and no database size limit, but limited to max 2 GB bufferpool, max 2 processors
linux and windows
PostgreSQL
free
often bundled with linux, windows
DataBase course notes 1

25. Installing MySQL
DataBase course notes 1

26. Install MySQL Server
DataBase course notes 1

27. Install Graphical Client Tool
Toad® for MySQL -
freeware development tool
improves productivity of developers and administrators running MySQL on Windows
phpMyAdmin
free software tool written in PHP intended to handle administration of MySQL over internet
included in most WAMP distributions
DataBase course notes 1

28. MySQL Directory Structure
DataBase course notes 1

29. Starting MySQL Service
default the directory where all of MySQL’s executable files are stored is \mysql\bin
to start MySQL service, double click on winmysqladmin.exe file
screen shown in next figure will appear for few moments and then hide itself
first time it is run the MySQL service will prompt you for some user credentials for the administrative user
DataBase course notes 1

30. MySQL admin screen
DataBase course notes 1

31. depending on your operating system and version of MySQL that you have, preceding process also installs shortcut to WinMySQLadmin.exe in your start-up group
ensures that MySQL server starts up every time you restart your machine
can also register mysql as a win32 service on certain operating systems
DataBase course notes 1

32. MySQL Configuration Files
my.ini
usually stored in \windows directory, if you have chosen a standard installation. Any changes you make to this file can be
contains various parameters, such as location of datastore, IP address of server, username and password that you just entered
everything is now set up and running
we need to test that we can connect to server
DataBase course notes 1

33. Connecting to MySQL Server
the most basic way, via command line interface
start command box
get into the directory with MySQL executables
cd \mysql\bin
run MySQL command interpreter
mysql
DataBase course notes 1

34. SQL commands connect database exit connect with Graphical Tool
DataBase course notes 1

35. Use MySQL graphical client
select required database using Database Selector
type the SQL query that you wish to execute into the Query Window
once typed, click on Execute Query button to run the query
if query does not trigger output, check text in Status Window
DataBase course notes 1