Arc Engine 9.3 连接 SQL Server 2008

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using ESRI.ArcGIS.esriSystem;   
using ESRI.ArcGIS.DataSourcesOleDB;  
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.DataSourcesOleDB;

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PropertySet propertySet=new PropertySet();   
propertySet.SetProperty("CONNECTSTRING","Provider=SQLOLEDB;
Integrated Security=SSPI;Persist Security Info=False;
Initial Catalog=数据库名;Data Source=机器名/服务器名");   
IWorkspaceFactory2 workspaceFactory = new OLEDBWorkspaceFactoryClass();   
IWorkspace workspace = workspaceFactory.Open(propertySet, 0);   
IFeatureWorkspace featureWorkspace = workspace as IFeatureWorkspace; 
ITable table = featureWorkspace.OpenTable("表名");