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select * vs select colu<em>mem>n

If I just need 2/3 colu<em>mem>ns and I query SELECT * instead of providing those colu<em>mem>ns in select query, is there any perfor<em>mem>ance degradation regarding <em>mem>ore/less I/O or <em>mem>e<em>mem>ory? ...
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Re<em>mem>ove .php extension with .htaccess

Yes, I've read the Apache <em>mem>anual and searched here. For so<em>mem>e reason I si<em>mem>ply cannot get this to work. The closest I've co<em>mem>e is having it re<em>mem>ove the extension, but it points back to the root directory. I want this to just work in the directory that contains the .htaccess file. ...
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How to check BLAS/LAPACK linkage in Nu<em>mem>Py and SciPy?

I a<em>mem> builing <em>mem>y nu<em>mem>py/scipy environ<em>mem>ent based on blas and lapack <em>mem>ore or less based on this walk through. 5 Answers ...
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Switch state<em>mem>ent for greater-than/less-than

so I want to use a switch state<em>mem>ent like this: 10 Answers 10 ...
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What is “with (nolock)” in SQL Server?

Can so<em>mem>eone explain the i<em>mem>plications of using with (nolock) on queries, when you should/shouldn't use it? 16 Answers ...
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Copy array by value

... a reference to a new array. Also note that: For references, strings and nu<em>mem>bers (and not the actual object), slice() copies object references into the new array. Both the original and new array refer to the sa<em>mem>e object. If a referenced object changes, the changes are visible to both the new and ori...
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What's the best way to send a signal to all <em>mem>e<em>mem>bers of a process group?

I want to kill a whole process tree. What is the best way to do this using any co<em>mem><em>mem>on scripting languages? I a<em>mem> looking for a si<em>mem>ple solution. ...
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Aligning text and i<em>mem>age on UIButton with i<em>mem>ageEdgeInsets and titleEdgeInsets

...two lines of text such that there's about 2-3 pixels of space between the i<em>mem>age and the start of text. The control itself is Center aligned horizontally (set through Interface Builder) ...
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Securely storing environ<em>mem>ent variables in GAE with app.ya<em>mem>l

I need to store API keys and other sensitive infor<em>mem>ation in app.ya<em>mem>l as environ<em>mem>ent variables for deploy<em>mem>ent on GAE. The issue with this is that if I push app.ya<em>mem>l to GitHub, this infor<em>mem>ation beco<em>mem>es public (not good). I don't want to store the info in a datastore as it does not suit the project...
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How to loop through array in jQuery?

I a<em>mem> trying to loop through an array. I have the following code: 11 Answers 11 ...