<html><body bgcolor="#FFFFFF"><div>I highly recommend Regina and Leo's book <a href="http://www.manning.com/obe/"><a href="http://www.manning.com/obe/">http://www.manning.com/obe/</a></a></div><div><br></div><div>David.<br><br><div><br></div></div><div><br>On Oct 6, 2011, at 9:41 AM, "Dennis M. Linton" <<a href="mailto:dennis@dmlinton.net">dennis@dmlinton.net</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
Can anyone recommend/suggest any introductory tutorials on using polygon points or bounding boxes in QGIS SQL queries. I have done a lot Googling and have found a few but the instructions are quite cryptic and in trying a few examples I do not seem to be able to obtain any results. My queries do not throw errors but neither do they return anything.<br>
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Thanks in advance.<br>
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Dennis M. Linton, P.Eng.
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