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Django queries - id vs pk
...t variable names). The reason for this is that pk is a property which is 7 times slower than id since it takes time looking up pk attribute name in meta.
%timeit obj.id
46 ns ± 0.187 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
%timeit obj.pk
347 ns ± 11.3 ns per loop (mean ± s...
What are best practices for multi-language database design? [closed]
What is the best way to create multi-language database? To create localized table for every table is making design and querying complex, in other case to add column for each language is simple but not dynamic, please help me to understand what is the best choose for enterprise applications
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What are the differences between LinearLayout, RelativeLayout, and AbsoluteLayout?
I am confused about the difference between LinearLayout, RelativeLayout, and AbsoluteLayout.
Could someone please tell me the exact differences between them?
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What is the best Distributed Brute Force countermeasure?
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With respect to the 'Last attempted login time', that is a good strategy for power users (which I bet is why SO does it), but it has two weaknesses: (a) it doesn't address the problem of intrusion, it only reports that it may have happened, and (b), most user's just ...
Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
...ll realize that you should have used an ArrayList (which gives O(1) access time) instead of a LinkedList (which gives O(n) access time). Assuming you have been programming to an interface, making such a change is easy. You would simply change the instance of List from,
List list = new LinkedList();...
Protected methods in Objective-C
What is the equivalent to protected methods in Objective-C?
I want to define methods which only the derived classes may call/implement.
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UITapGestureRecognizer tap on self.view but ignore subviews
I need to implement a feature that will invoke some code when I double tap on the self.view (view of UIViewCotroller ). But the problem that I have other UI object on this view and I don't want to attach any recognizer object to all of them. I found this method below how to make gesture on my view ...
External resource not being loaded by AngularJs
Using Angular and Phonegap, I'm trying to load a video that is on a remote server but came across an issue. In my JSON, the URL is entered as a plain HTTP URL.
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Hidden Features of C#? [closed]
...ptimized the code for performing
uppercase comparisons.
I remember one time my coworker always changed strings to uppercase before comparing. I've always wondered why he does that because I feel it's more "natural" to convert to lowercase first. After reading the book now I know why.
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In C# what is the difference between ToUpper() and ToUpperInvariant()?
...rıght' on an "English" Windows with Turkey regional settings for date and time. Looks like sometimes even Microsoft fails the Turkey test, an PC's language isn't even Turkish, just lol.
– Guney Ozsan
Oct 28 '18 at 16:28
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