I don't have acces to DBD::Sybase modules

It's difficult for me to imagine a situation in which this couldn't be solved, if you can tell us what the problem is, perhaps we can offer suggestions.

What I'd like is be able to execute some simple pseudo-SQL queries against those AoH.

DBD::AnyData supports SQL queries on an AoA, so a line or two of code would allow it to work on AoH. It's a pure perl module so installation is a simple matter of copying files.