>>>The thing I mentioned about SQL back-ends is that they are not free.
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>>
>>Check. It's the LINUX + SQL DB configuration that interests me. I don't expect enterprise-quality DBs to be free but the prices seem to be lower in the Linux market.
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>>Peter
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>MySQL is free.
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>www.mysql.org
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>
>Mike
Free until you distribute as part of commercial application. See the fine print section entitled "Licensing".