Sqlserver2008数据引擎特性之空间数据预先体验
抢先体验下 SqlServer 2008 空间数据 . 本文将演示如何获得基本的地理信息数据 , 并且借助老外的工具如何把其导入到 SqlServer2008 中 , 然后通过查询工具观察查询结果 . 期待 Sqlserver 2008 正式版的发布 . 1. 安装 sqlserver2008. 只需安装数据引擎 . 下
抢先体验下SqlServer 2008空间数据.本文将演示如何获得基本的地理信息数据,并且借助老外的工具如何把其导入到SqlServer2008中,然后通过查询工具观察查询结果. 期待Sqlserver 2008正式版的发布.
1.安装sqlserver2008.只需安装数据引擎.
下载地址:
http://download.microsoft.com/download/d/3/6/d36e87cc-27ef-4ac3-ab38-290f15ff14de/SQLDEV_CHS.exe
可能是由于还是CTP的原因,下载和安装的过程同样都是漫长而痛苦,有可能遭遇失败,我装了四遍.在正式版中相信会有所改善.
2.从网站上下载地理信息数据.
从国家基础地理信息中心下载基础数据:
http://sms.webmap.cn/find.asp?status=完成&accessOption=下载
这里推荐1:400万地级行政界线.
3.将e00格式转换成shp格式.
下载格式转换工具:
http://www.openlib.org.cn/plus/view.php?aid=7600
安装完毕后运行datatransfer.exe.
数据源格式选择:ESRI EOO格式.
目标数据格式选择:ESRI Shape格式.
选择下载的e00文件并且指定输出目录,后,点击”开始转换”,将e00格式的数据转换成shp格式.
4.下载SqlSpatialTools,导入地理信息数据到数据库中.
下载地址:
http://www.sharpgis.net/file.axd?file=SqlSpatialTools.zip
解压后,运行里面的Shape2Sql.exe.选择好Shapefile文件所在位置,并且根据自己机器上的实例名指定Server和数据库信息,数据库提前建立好.
其它设置可以按照默认设置,点击Upload to Database.将shp文件里的数据转换到sqlserver2008数据引擎实例中.
5.查询
用默认的Managementstudio是无法直观的观察和地理信息类型相关的结果的,不过借助老外的工具可以在WPF下很直观的观察到.
打开SqlServer2008 Management Studio,打开所导入的表.
复制这个查询以备下面用.
运行上面提到的SqlSpatialTools里的SqlSpatial.exe.把上面拷贝下来的查询语句复制到查询框中. 此外,请注意Database和Server等信息的填写.
至此,大家可以看到空间数据的查询结果了.这个工具是老外用WPF写的.
其它:
目前还没有找到将e00直接转换到sqlserver2008的工具,所以只能根据目前掌握的资料先转成shapefile然后再转到sqlserver2008中.
SqlServer2008的Management Studio首次安装很有可能找不到,我是重新安装客户端工具后才找到的.
不要指望VS2008支持SQLServer2008,最起码LINQ和xxxDataSource还不能用,除非安装VS2008 SP1.当然这两样东西都没有正式发布,所以想要吃螃蟹的朋友一定要考虑好.
个人比较倾向于用WPF显示GIS数据,里面有很多图形操作类用起来都很舒服,也在考虑Silverlight,不过考虑到Silverlight无法直接和数据引擎通讯,只能以service的方法访问数据,shape数据量通常会很大影响性能.不知园子里的朋友是否有比较好的方法.
参考资料:
Creating OGC conformance test map in SQL Server 2008
http://www.sharpgis.net/post/2008/02/24/Creating-OGC-conformance-test-map-in-SQL-Server-2008.aspx
所给的实例很不错,示例值得尝试.
Shapefile to SqlServer 2008 to WPF
http://www.sharpgis.net/post/2007/12/Shapefile-to-SqlServer-2008-to-WPF.aspx
本文中所提及的工具,这个链接主要是介绍.
SQL Server 2008 Spatial Tools
http://www.sharpgis.net/page/SQL-Server-2008-Spatial-Tools.aspx
本文中所提及的工具.
希望本文对您会有所帮助---aspnetx来自博客园
[2011-04-25 修正]
Sharp to SQLServer 地址更新：http://www.sharpgis.net/page/SQL-Server-2008-Spatial-Tools.aspx
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