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What is “with (nolock)” in SQL Server?
Can someone explain the implications of using with (nolock) on queries, when you should/shouldn't use it?
16 Answers
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Why should hash functions use a prime number modulus?
A long time ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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Why use iterators instead of array indices?
...anning to do within the body of the loop? If you plan on accessing the elements as in
T elem = some_vector[i];
then you're making the assumption that the container has operator[](std::size_t) defined. Again, this is true for vector but not for other containers.
The use of iterators bring you c...
How to trigger Autofill in Google Chrome?
I would like to know if there is some kind of special markup to enable the Chrome autofill feature for a specific form. I only found questions about how to disable it, but I would like to know if I can add some kind of markup to the html code in order to tell the browser "this is the input for the a...
How to get my IP address programmatically on iOS/macOS?
...ll IPv4 and IPv6 addresses on an iOS or OSX device. The first getIPAddress method acts more or less as the older code in this answer: you can prefer either one or the other type address, and it always prefers WIFI over cellular (obviously you could change this).
More interestingly it can return a d...
What is the difference between a symbolic link and a hard link?
...n inode.
A hard link, then, just creates another file with a link to the same underlying inode.
When you delete a file, it removes one link to the underlying inode. The inode is only deleted (or deletable/over-writable) when all links to the inode have been deleted.
A symbolic link is a link to an...
Good example of livelock?
...anyone had a good code-based example of it? And by code-based, I do not mean "two people trying to get past each other in a corridor". If I read that again, I'll lose my lunch.
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Entity Framework 4 - AddObject vs Attach
I have been working with Entity Framework 4 recently, and am slightly confused as to when to use ObjectSet.Attach , and ObjectSet.AddObject .
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
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:last-child only works when the element in question is the last child of the container, not the last of a specific type of element. For that, you want :last-of-type
http://jsfiddle.net/C23g6/3/
As per @BoltClock's comment, this is only checking for the last ...
How can the Euclidean distance be calculated with NumPy?
...rks because Euclidean distance is l2 norm and the default value of ord parameter in numpy.linalg.norm is 2.
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