The big advantages of BerkeleyDB are:

So whenever I want a hash that persists on disk because my RAM isn't big enough to hold all of it, or when I want the data to persist between invocations of the program, I use a tied hash, that maps a Perl hash to a BerkeleyDB.

Another case is when I want multiple instances of a program to (infrequently) write data and the dangers of conflicts are relatively small - then BDB also is convenient.

In other cases, I use a plain Perl hash instead.

In reply to Re: Perl Hash vs BerkeleyDB vs MySQL by Corion
in thread Perl's Hash vs BerkeleyDB vs MySQL by monkfan

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