Not directed to your specific question, but PM maintains a library of tutorials. GrandFather's contribution -- Databases made easy -- is oriented to your choice (and IMO a good entry choice, erix observation notwithstanding, unless -- as that observation seems to assume -- you're headed for heavy use of advanced DB tech. YMMV re a definition of 'heavy' but a

More generally, you'll be well served to make use of Super Search or even Google using site:perlmonks.com] to search only at this site. A recent big-G search with 'site:perlmonks.com SQLite' as the only terms found numerous nodes, including one in which the author notes, "I've been testing DBD::SQLite with 100_000 records...." which, in my miles, is somewhat beyond either trivial or a Christmas card list.)