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MySQL error: key specification without a key length

... 64 You can specify the key length in the alter table request, something like: alter table authors...
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How to get object size in memory? [duplicate]

...sure. It is an internal implementation detail and not documented. However, based on the objects included in the other object. Now, how do we calculate the memory requirement for our cached objects? I had previously touched this subject in this article: Now, how do we calculate the memory requir...
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Cosine Similarity between 2 Number Lists

... another version based on numpy only from numpy import dot from numpy.linalg import norm cos_sim = dot(a, b)/(norm(a)*norm(b)) share | im...
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What does the number in parentheses shown after Unix command names in manpages mean?

...et Archive which had the v7 version the original answer seemed to link to (based on the URL). – Jeroen Oct 7 '17 at 14:28 add a comment  |  ...
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background-size in shorthand background property (CSS3)

... and background-size properties in a shorthanded background property. Based on W3C documentation background-size should come after background-position property separated with an slash( / ). ...
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Visual Studio 2013 hangs when opening a solution

... I found the following to be the better approach to debugging VS based on MS Connect instructions Please help to confirm if your captured dump file is a 32-bit dump file. If it is a 64-bit dump file, please use the following step to capture a new dump file. Start Visual Studio. Start a...
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Does pandas iterrows have performance issues?

... Mateen Ulhaq 16.6k1111 gold badges6464 silver badges105105 bronze badges answered Jul 21 '14 at 17:39 JeffJeff 1...
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MySQL skip first 10 results

... This is useful and fast to do, for impala and other databases where the limit with offset requires an order argument which is not always desirable. – KarthikS Apr 23 '17 at 22:26 ...
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What is the curiously recurring template pattern (CRTP)?

... In short, CRTP is when a class A has a base class which is a template specialization for the class A itself. E.g. template <class T> class X{...}; class A : public X<A> {...}; It is curiously recurring, isn't it? :) Now, what does this give you? T...
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How can I get the current page's full URL on a Windows/IIS server?

...because you are under IIS, $_SERVER['PATH_INFO'] is what you want, based on the URLs you used to explain. For Apache, you'd use $_SERVER['REQUEST_URI']. share | improve this answer ...