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Storing time-series data, relational or non?
...r description, the actual PK is (Device, Metric, DateTime). (Please don't call it TimeStamp, that means something else, but that is a minor issue.) The uniqueness of the row is identified by:
(Device, Metric, DateTime)
The Id column does nothing, it is totally and completely redundant.
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Define all functions in one .R file, call them from another .R file. How, if possible?
How do I call functions defined in abc.R file in another file, say xyz.R?
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Remove last item from array
... This works great, just make sure you notice that this is a call to .slice() and not to .splice().
– Brian Hasden
Oct 17 '14 at 20:44
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Android: how to make an activity return results to the activity which calls it?
I have a Location activity that can be called from many activities, such as Sign up and Order . In the Location activity the user enters his location, so the activity Location will return this new location to that activity which called it.
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Start may not be called on a promise-style task. exception is coming
...ss already started the task before giving it to you. You should only ever call Start on a task that you create by calling its constructor, and you shouldn't even do that unless you have a compelling reason to not start the task when you create it; if you want it started right away you should use Ta...
EditText maxLines not working - user can still input more lines than set
...y to limit the inputed lines or do I have to it on backend code programmatically?
– Indrek Kõue
Aug 17 '11 at 14:12
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Paging with Oracle
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This is the correct answer should you want to dynamically change your order.
– chakeda
Aug 30 '18 at 20:16
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Making your .NET language step correctly in the debugger
...he second time around? You might test by breaking in (through exception or call System.Diagnostic.Debugger.Break())
Assuming that symbols load, is there a repro that you could send us?
The likely difference is that the symbol format for dynamic-compiled code is 100% different between .NET 2 (PDB str...
Is R's apply family more than syntactic sugar?
...s can safely be used in parallel because changes are local to the function call (unless you try to use assign or <<-, in which case you can introduce side effects). Needless to say, it's critical to be careful about local vs. global variables, especially when dealing with parallel execution.
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Passing an Array as Arguments, not an Array, in PHP
...ndard func($arg1, $arg2) manner. But now I'm lost on how to do it. I recall the manner of passing by reference, how to "glob" incoming parameters ... but not how to de-list the array into a list of arguments.
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