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Message Posted: Sun, 10 Feb 2008 @ 09:43:43 GMT


     
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Subj:   TPT API - Using GetBuffer vs GetRow in TD_EXPORT
 
From:   Hillel Eilat

I am in a process of evaluating both options for implementing massive exports.

The main evaluation criterion is the amount of data passed over the wire per call.

The documentation states:

"Exporting an entire buffer full of rows using the GetBuffer function rather than one row at a time using the GetRow function improves performance by reducing the amount of data movement required. "


The term "data movement" is rather vague in this regard.

Does 'GetRow' mean an 'over-the-wire' call to fetch each and every individual row?

Or - can one assume that both GetRow and GeBuffer API-s share identical 'Batch' fetch mechanism but differ from each other by the way they 'pack' and expose data contents to the API consumer?


Regards.

Hillel.



     
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