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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...RCHAR fields are converted to CHAR to gain the advantage of working with fixed-width rows. So the strings in memory become padded out to the maximum length of your declared VARCHAR column.
When your query implicitly generates a temporary table, for instance while sorting or GROUP BY, this can use ...
How do Python functions handle the types of the parameters that you pass in?
...traint on the name such that, if it has once referred to an object of type X, it's then forevermore constrained to refer only to other objects of type X. Constraints on names are not part of the concept of "strong typing", though some enthusiasts of static typing (where names do get constrained, an...
How can I use Autolayout to set constraints on my UIScrollview?
I have spent two days trying out the various solutions for Mixed and Pure Autolayout approaches to achieve what was a trivial scrollview setup prior to autolayout, and it's now official - I must be too stupid. I am setting this up mostly in Storyboard (well, it's just the way it is).
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How to work with complex numbers in C?
How can I work with complex numbers in C? I see there is a complex.h header file, but it doesn't give me much information about how to use it. How to access real and imaginary parts in an efficient way? Is there native functions to get module and phase?
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Changing the background drawable of the searchview widget
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Intro
Unfortunately there's no way to set SearchView text field style using themes, styles and inheritance in XML as you can do with background of items in ActionBar dropdown. This is because selectableItemBackground is listed as styleable in R.stylable, whereas searchViewTextFie...
Truncating long strings with CSS: feasible yet?
Is there any good way of truncating text with plain HTML and CSS, so that dynamic content can fit in a fixed-width-and-height layout?
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Where in a virtualenv does the custom code go?
...uirement to locate your application within a virtualenv directory.
For example, you might have a project where you have multiple applications using the same virtualenv. Or, you may be testing an application with a virtualenv that will later be deployed with a system Python. Or, you may be packa...
Why should I avoid multiple inheritance in C++?
...h B and C), because this was bad architecture (in fact, C should not have existed at all...)
How much maintainers were paying for that, because in C++, the parent class A was present twice in its grandchild class D, and thus, updating one parent field A::field meant either updating it twice (through...
Recommended way to get hostname in Java
...ly speaking - you have no choice but calling either hostname(1) or - on Unix gethostname(2). This is the name of your computer. Any attempt to determine the hostname by an IP address like this
InetAddress.getLocalHost().getHostName()
is bound to fail in some circumstances:
The IP address might not...
setuptools vs. distutils: why is distutils still a thing?
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Have a look at this SO question. It explains all the packaging methods very well, and might help answer your question to some extent: Differences between distribute, distutils, setuptools and distutils2?
Distutils is still the standard tool for packaging in ...