I liked this graphical representation of the Keys
Also http://www.windowsecurity.com/img/upl/image0051069853621203.jpg
NOLOCK: Why It Counts Some Rows Twice and Misses Others
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NOLOCK is not a safe performance fix, it is a decision to reduce blocking
by accepting an answer that may never have been true. The whole problem is
that...
1 day ago
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