You haven't shown any code that tries to establish a connection to a mysql database server. Do you have such code already? If you do, does it include error checking to make sure the connection is established, and/or is it generatng any database-related error messages? If you don't, are you asking how to connect to mysql from within a CGI script? In other words, do you already have some lines in your script that resemble the following:
use DBI;
...
my $db_handle = DBI->connect( "DBI:mysql:database=$dbname;host=$hostna
+me",
$username, $password ) or
die "MySQL connection failed: $DBI::errstr";
...
# make up an sql statement string and a set of parameter values
# and execute it, as suggested in jeffa's reply...
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