Hi Roy,
>What are your opinions/options on passing data between tiers? (tiers could be foxpro and non-foxpro)
If both tiers are written in VFP and are not using COM, the fastest way would be to pass just the alias name, or table name, if it's across a datasession. For local VFP COM servers, you could keep data in a temporary table instead of a cursor and then pass the name of the table. Especially with huge amounts of data that's much faster than converting data into some sort of stream (XML, arrays) and pass them through COM.
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Christof