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What's wrong with nullable columns in composite primary keys?
... comparisons. This can be a source of subtle bugs when sorting, comparing, etc.
Postgres assumes you're an adult and can make this decision for yourself. Oracle and DB2 assume you didn't realize you were doing something silly and throw an error. This is usually the right thing, but not always -- yo...
How to make an Android Spinner with initial text “Select One”?
...nerAdapter) java.lang.reflect.Proxy.newProxyInstance(
obj.getClass().getClassLoader(),
new Class[]{SpinnerAdapter.class},
new SpinnerAdapterProxy(obj));
}
/**
* Intercepts getView() to display the prompt if position < 0
*/
p...
source of historical stock data [closed]
... as two different symbols, or stock splits are not properly accounted for, etc. And then you realize that historical dividend data is need as well and so you start running in circles, patching data together from 100 different data sources and so on. So to start with a "discount" data feed will do, b...
In Functional Programming, what is a functor?
...bananas, and we map the same function, we now would have a tree of apples. Etc. tree and list are two Functors here.
– Qqwy
Jun 19 '16 at 21:34
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How to deploy correctly when using Composer's develop / production switch?
...hat only make sense in development, like tests, fake-data-tools, debugger, etc.
5 Answers
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How do I set a cookie on HttpClient's HttpRequestMessage
...be used to do things like http only or scoped cookies, multivalue cookies, etc etc. The second highest rated answer proposes the same method as this but with a lot more context and explanation
– George Mauer
Aug 19 '19 at 21:01
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C++ auto keyword. Why is it magic?
...w people still write code for MS-DOS using compilers from Borland, Watcom, etc., that haven't seen significant upgrades in decades). If you're using a reasonably current version of any of the mainstream compilers, there's no reason to avoid it at all though.
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Are getters and setters poor design? Contradictory advice seen [duplicate]
... check when tempted to promote a POJO to a Bean. Accessors, serialization, etc. are a form of complexity: stackoverflow.com/questions/601721/decoupling-vs-yagni
– Chris Noe
Aug 24 '10 at 15:11
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How to get current CPU and RAM usage in Python?
...d way of getting current system status (current CPU, RAM, free disk space, etc.) in Python? Bonus points for *nix and Windows platforms.
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Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
...mplete) list, which includes Linux, BSD, Android, Palm, Sony Playstations, etc.: stackoverflow.com/questions/19877924/…
– Michael Scheper
Mar 22 '16 at 22:36
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