Hi Tachyon, thanks for your suggestion with the database approach! And yes I have access to Sybase database.

Unfortunately I cann't load them into the database. All these files come from who-knows-what systems, and I have no control over their creations (and I don't want to know either). And I specifically avoided to load them into database because I was told not to.

Sorry I forgot to mention that I am only allowed to work on the flat files, and the extraction is run only once per day. Why can't load these data into database in the first place? I don't know. That's the probably an old business decision.

In reply to Re: Re: Force perl to release memory back to the operating system by Roger
in thread Force perl to release memory back to the operating system by Roger

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