Tie Hash DBD
Source: London Perl Workshop 2010 on the 2010-12-04.
Speaker: H. Merijn Brand (Tux)
Recorded at the London Perl Workshop 2010
When hashes grow too big for memory, and sometimes even for DB_File, alternatives are available, but most of the time that needs a lot of recoding.
Tie::Hash::DBD is a drop-in replacement for DB_File hash ties that connects to databases a-la Tie::DBI
It supports deep nesting using Storable and persistence.