Please review the possible outputs listed in Re^2: DBI parameterized database query with comma seperated list and, noting all these statement sgenerate SQL to be passed to $db->prepare, illustrate a risk factor that is present because of how I've done it. 
my $db = DBI->connect(...);
my @list = CGI->param('arguments');
my $sql = do {
    my @holders = ('?') x @list;
    local $" = ',';
    <<EOSQL;

SELECT  something 
FROM    atable 
WHERE   data IN (@holders)

EOSQL
};
my $query = $db->prepare($sql);
$query->execute(@list);

[download]
Note I've pulled a whole list of arguments straight from the web, and passed them to the interface unscrubbed.

#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.

In reply to Re^6: DBI parameterized database query with comma seperated list by kennethk
in thread DBI parameterized database query with comma seperated list by mg9176

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