How to extract specific columns/line items from a CSV file?

[Mike Bonner]

Thanks Richard, that does answer my question.  Repeating for each line in
an external url does load the whole thing at once.  Someone remind me.. I
think I read that the "for each" no longer creates a second copy of the
data, is this correct?  Or did it ever make a duplicate?

On Tue, Sep 20, 2016 at 3:42 PM, Richard Gaskin <ambassador at fourthworld.com>
wrote:

> Keith Clarke wrote:
>
> > It’s interesting that the url container can be addressed directly,
> > instead of loading the file
>
>   get url ("file:"& tFile)
>
> ...does the same as:
>
>   open file tFile for read
>   read from file until EOF
>   close file tFile
>
> It's just more convenient than using the three-line method (which can be
> very useful if you need for fine-grained control over the read, such as
> reading in chunks or from a particular offset).
>
> Unless your files are much bigger than 100 MBs you should find loading
> them into memory well worth the effort for the time saved parsing them thee.
>
> --
>  Richard Gaskin
>  Fourth World Systems
>  Software Design and Development for the Desktop, Mobile, and the Web
>  ____________________________________________________________________
>  Ambassador at FourthWorld.com                http://www.FourthWorld.com
>
>
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