3) I don't know what #3 means.

Simply that before one can produce a DB report, the data has to exist in a DB. And getting the data into a DB is going to take more diskspace and time than producing the required counts directly from the flat file.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re^9: Working with large amount of data by BrowserUk
in thread Working with large amount of data by just1fix

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