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跟安装顺序无关。
检查一下看看你的数据库是不是用了非默认的那个端口号。
In IBM Cognos Administration, go to where your datasources are listed.Click More next to the datasource you want to modify.Click the View connections link.Click the Set properties icon.Click the Connection tab.Under Connection string, click the Edit the connection string icon (the pencil icon).Under Server Name, remove ':port'.Click OK还有，楼主用的是ODBC连的数据源吗？如果是的话，用32-bit 的ODBC Administrator tool配置，别用64的。 Control Panel->Administrative Tools->Data Sources (ODBC).
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