1. User clicks on a link in a web page (e.g. http://www.cgitest.com/cgi-bin/test.cgi).
2. The web server runs the program test.cgi.
3. The test.cgi program does what it is programmed to do.
4. The test.cgi program also builds a .html file in memory and sends it back to the user's browser.

# Use the DBI module
use DBI qw(:sql_types);

# Declare local variables

my ($databaseName, $databaseUser, $databasePw, $dbh);
my ($stmt, sth, @newRow);
my ($telephone);

# Set the parameter values for the connection
$databaseName = "DBI:mysql:yourWebSite_com";
$databaseUser = "yourLoginId";
$databasePw = "yourLoginPassword";

# Connect to the database
# Note this connection can be used to 
# execute more than one statement
# on any number of tables in the database

$dbh = DBI->connect($databaseName, $databaseUser, 
    $databasePw) || die "Connect failed: $DBI::errstr\n";

# Create the statement. 
$stmt = "SELECT Name FROM Phonebook  
         WHERE (Telephone LIKE '518%')";

# Prepare and execute the SQL query
$sth = $$dbh->prepare($$stmt) 
    || die "prepare: $$stmt: $DBI::errstr";
$sth->execute || die "execute: $$stmt: $DBI::errstr";

# Get the first record
# If more than one record will be returned put
# the fetchrow in a while loop
@record = $sth->fetchrow()

# Get the value of the first field returned.
$telephone = $record[0];

# Clean up the record set and the database connection    
$sth->finish();
$dbh->disconnect();