From the DBI doc:

$ary_ref = $dbh->selectall_arrayref($statement, \%attr, @bind_values);

Update: thanks to Happy-the-monk for clarifying what the notation actually means. I thought the OP would understand it, seeing how he used an anonymous hash himself. What the docs actually say is:

$ary_ref = $dbh->selectall_arrayref($statement);
$ary_ref = $dbh->selectall_arrayref($statement, \%attr);
$ary_ref = $dbh->selectall_arrayref($statement, \%attr, @bind_values);

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This means that the selectall_arrayref method takes either one, two, or any number of arguments. The first two have to be scalars, a string (SQL query) and a reference to a hash (attributes). After that, you can supply a list of values for the placeholders in your query, if any.

In reply to Re: Using placeholders in selectall_arrayref by Fang
in thread Using placeholders in selectall_arrayref by bradcathey

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