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yaxiaoxiao
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空间数据库的几个问题？
<P>空间数据库的实现方式有那几种？当前的趋势是什么？另外谁有SQL92和SQL99标准能不能共享一下？</P>
2008-11-10 16:14
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地理信息系统(GIS)
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![](<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL /windid/index.php was not found on this server.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
<hr>
<address>Apache/2.0.63 (Win32) PHP/5.2.14 Server at www.gisempire.com Port 80</address>
</body></html>/avatar/000/09/24/92428.jpg)