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Understanding MongoDB BSON Document size limit
... you have enough RAM for your entire database ... Typically the "working set" is in RAM, not the whole database (like in my case I have more than one x GBs databases where if all added up would exceed my RAM, but that's okay because the working set is much, much smaller.) Also, if there was no l...
What is the recommended approach towards multi-tenant databases in MongoDB?
...he way MongoDB
allocates its data files. Each
database uses it’s own set of files:
The first file for a database is
dbname.0, then dbname.1, etc. dbname.0
will be 64MB, dbname.1 128MB, etc., up
to 2GB. Once the files reach 2GB in
size, each successive file is also
...
BasicHttpBinding vs WsHttpBinding vs WebHttpBinding
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Python str vs unicode types
...hold Unicode strings. Is there any special reason apart from being able to set Unicode codes in unicode strings using the escape char \ ?:
...
How to avoid “cannot load such file — utils/popen” from homebrew on OSX
...
The problem mainly occurs after updating OS X to El Capitan (OS X 10.11) or macOS Sierra (macOS 10.12).
This is because of file permission issues with El Capitan’s or later macOS's new SIP process. Try changing the permissions for the /usr/local dir...
How to write DataFrame to postgres table?
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What does the @ symbol represent in objective-c?
...rations, copy, retain, assign, readonly, readwrite, nonatomic, getter, and setter; those are only valid within the attribute section of a @property declaration.
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What is the difference between instanceof and Class.isAssignableFrom(…)?
Which of the following is better?
14 Answers
14
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MVVM: Tutorial from start to finish?
I'm a C#/Windows Forms programmer with more than 5 years experience. I've been investigating WPF using the MVVM (Model-View-ViewModel) design pattern. I have searched the Internet for tutorials. I have even watched the entirety of Jason Dolinger's awesome video. Although I have found many, I have no...
地图组件（高德地图） · App Inventor 2 中文网
...ty 转换为 FillOpacity（填充透明度）
image 转换为 ImageAsset（图像素材）
stroke 转换为 StrokeColor（线条颜色）
stroke-opacity 转换为 StrokeOpacity（线条透明度）
stroke-width 转换为 StrokeWidth（线条宽度）
title 转换为 Tit...