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Why are joins bad when considering scalability?
...rk unit. To scale well, you don't do anything you don't need to in volume, and the things you actually do you make sure are done as efficiently as possible.
In that context, of course joining two separate data sources is relatively slow, at least compared to not joining them, because it's work you n...
How should I pass multiple parameters to an ASP.Net Web API GET?
...implement a RESTful api. I need to pass in a few parameters to the system and have it perform some action, then return a list of objects as the results. Specifically I am passing in two dates and returning records that fall between them. I'm also keeping track of the records returned so that subs...
How do you prevent install of “devDependencies” NPM modules for Node.js (package.json)?
...
The npm install command will install the devDependencies along other dependencies when run inside a package directory, in a development environment (the default).
Use npm install --only=prod (or --only=production) to install only dependencies, ...
Shortcut to exit scale mode in VirtualBox [closed]
...d to even save after changing the settings
3) Re-open the Virtual Machine and it should be reset!
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What is a good reason to use SQL views?
I am reading through the SQL Server 2008 bible and I am covering the views section. But the author really doesn't explain the purpose of views. What is a good use for views? Should I use them in my website and what are the benefits of them?
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Equivalent of *Nix 'which' command in PowerShell?
...customizing my profile in PowerShell was 'which'.
New-Alias which get-command
To add this to your profile, type this:
"`nNew-Alias which get-command" | add-content $profile
The `n at the start of the last line is to ensure it will start as a new line.
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CSS force image resize and keep aspect ratio
I am working with images, and I ran across a problem with aspect ratios.
23 Answers
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What to add for the update portion in ConcurrentDictionary AddOrUpdate
...f an update. I guess in your case (since you don't distinguish between add and update) this would be:
var sessionId = a.Session.SessionID.ToString();
userDic.AddOrUpdate(
authUser.UserId,
sessionId,
(key, oldValue) => sessionId);
I.e. the Func always returns the sessionId, so that both A...
Hiding a password in a python script (insecure obfuscation only)
...onnection string. In this connection string I have to include the username and password for this connection.
21 Answers
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What type of hash does WordPress use?
...hing framework, which is used in Content Management Systems like WordPress and Drupal.
They used to use MD5 in the older versions, but sadly for me, no more. You can generate hashes using this encryption scheme at http://scriptserver.mainframe8.com/wordpress_password_hasher.php.
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