Friday, March 9, 2012

Pls explain when I look I/O

Hello all
when I looked at I/O . I could see logical read,physical read,read ahead read, scan count .Please explain it . Thank you
I want to know . where can I found knowledge base . please suggest me. :)As a start you can take a look at 'set statistics io' in sql book online. Also, take a look at the following article. It has some good info.

http://www.windowsitlibrary.com/Content/77/18/1.html|||thank you so much

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