Best Way To Read Millions Of Record From Sql Server Very Fast?

Dec 6, 2010

best way to read millions of record from sql server database.i have tried dataset but the performance is not good

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here is my code 

[WebMethod]
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[Code]....

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I'm running a query that brings millions of records and makes the server run out of memory. I'm thinking I should get the data in chunks. So I was wondering if someone could shed some light on this or point me to another place where I can read further.

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I tried this code by inputting the ftp address as ftp//: and the correct username and password and I get the following error

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