I am not sure, if I completely understand your question, but I think you should study the documentation of the following modules: DBI and - depending on your DB backend - DBD::Oracle, DBD::MySQL, etc.

PM also has a Database Programming tutorial section and the DBI-Homepage is also a good starting point.

Maybe you should start with:

• create a DB
• parse log file line by line (loop over log file)
• extract and format log-data
• put log data into DB

The DBI interface makes it easy to change DB backends later, so you could start using a simple file based SQLite DB (DBD::SQLite). Then, I also recommend Databases made easy.

Come back with a concrete code sample if you have problems.

HTH