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What is a “Bitmap heap scan” in a query plan?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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using facebook sdk in Android studio
...cebook-sdk-for-android-using-android-studio/3.0/ page are wrong for Gradle-based projects (i.e. your project was built using Android Studio's New Project wizard and/or has a build.gradle file for your application module). Follow these instructions instead:
Create a libraries folder underneath your...
What is the recommended approach towards multi-tenant databases in MongoDB?
...SaaS multi-tenant applicatios I also was going to select the second option based on my previous experience with the relational databases.
While making my research I found this article on mongodb support site (way back added since it's gone):
https://web.archive.org/web/20140812091703/http://support...
Pass an array of integers to ASP.NET Web API?
... provide a default constructor that pushes the type definition down to the base class: public CommaDelimitedArrayModelBinder() : base(typeof(CommaDelimitedArrayModelBinder)) { }.
– sliderhouserules
Jan 11 '16 at 22:49
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Tree data structure in C#
... many ways you could implement it that it would be impossible to cover all bases with one solution. The more specific a solution, the less likely it is applicable to any given problem. I even get annoyed with LinkedList - what if I want a circular linked list?
The basic structure you'll need to i...
Clang vs GCC for my Linux Development project
...& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/i686-pc-linux-gnu/4.3.4/include/g++-v4/ostream:169: note: std::basic_ostream<_CharT, _Traits>&...
Throwing the fattest people off of an overloaded airplane.
...cooperate: Use a parallel sorting network. (see also this)
Here is a live demonstration
Update: Alternative video (jump to 1:00)
Asking pairs of people to compare-exchange - you can't get faster than this.
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What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
...is an overhead, significant or otherwise, depending on your particular database. SQL Server, for example, loses a lot of ability to predict data page sizes and optimize accesses and alignment thusly. As always, test.
– Matt Enright
Aug 10 '11 at 22:09
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Text overflow ellipsis on two lines
...hite at 50% -> white at 100%.*/
background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAgAAAAABCAMAAACfZeZEAAAABGdBTUEAALGPC/xhBQAAAwBQTFRF//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////...
How to filter array in subdocument with MongoDB [duplicate]
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Use $filter aggregation
Selects a subset of the array to return based on the specified
condition. Returns an array with only those elements that match the
condition. The returned elements are in the original order.
db.test.aggregate([
{$match: {"list.a": {$gt:3}}}, // <-- mat...