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SQL JOIN vs IN performance?
I have a case where using a JOIN or an IN will give me the correct results... Which typically has better performance and why? How much does it depend on what database server you are running? (FYI I am using MSSQL)
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What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
I have a project in which I'd like to use some of the .NET 4.0 features but a core requirement is that I can use the System.Data.SQLite framework which is compiled against 2.X. I see mention of this being possible such as the accepted answer here but I don't see how to actually achieve this.
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How to read an external local JSON file in JavaScript?
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In terms of helping you write code to read JSON, you should read the documentation for jQuery.getJSON():
http://api.jquery.com/jQuery.getJSON/
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Android Camera Preview Stretched
I've been working on making my custom camera activity on Android, but when rotating the camera, the aspect ratio of the surface view gets messed up.
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Repository Pattern vs DAL
Are they the same thing? Just finished to watch Rob Connery's Storefront tutorial and they seem to be similar techinques. I mean, when I implement a DAL object I have the GetStuff, Add/Delete etc methods and I always write the interface first so that I can switch db later.
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How to do a regular expression replace in MySQL?
I have a table with ~500k rows; varchar(255) UTF8 column filename contains a file name;
13 Answers
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(this == null) in C#!
...aving correctly according to the spec (even in Beta 1, this is a compile time error):
§ 7.5.7 This access
A this-access consists of the reserved word this.
this-access:
this
A this-access is permitted only in the block of an instance constructor, an instance method, or an insta...
snprintf and Visual Studio 2010
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Short story: Microsoft has finally implemented snprintf in Visual Studio 2015. On earlier versions you can simulate it as below.
Long version:
Here is the expected behavior for snprintf:
int snprintf( char* buffer, std::size_t buf_size, const char* format, ......
Convert absolute path into relative path given a current directory using Bash
...for /usr/bin/nmap: from nmap to /tmp/testing it is only ../../ and not 3 times ../. It works however, because doing .. on the rootfs is /.
– Patrick B.
Mar 6 '18 at 14:50
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Create a git patch from the uncommitted changes in the current working directory
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git format-patch also includes binary diffs and some meta info. Actually that would be the best bet for creating a patch, but afaik this does only work for checked in sources/ changes, right?
– Eric
Mar 18 '12 at 12:24
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