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Q: 

How many DataReaders can be created on a single DataConnection in ADO.NET?

As far as I know, via MARS(Multiple Active Result Sets), we can create several Datareaders on a single DataConnection. Please refer to http://msdn.microsoft.com/en-us/library/yf1a7f4f.aspx.

I am wondering how many DataReaders can be created maximumly?

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