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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
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Assuming you've used home-brew to install and upgrade Postgres, you can perform the following steps.
Stop current Postgres server:
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Initialize a new 10.1 database:
initdb /us...
mongoDB/mongoose: unique if not null
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Awesome! Definitely the best answer for newbs like me after 1.8! NOTE: Mongoose won't update your unique index to be sparse if you just add a sparse : true to your schema. You have to drop and re-add the index. Dunno if that's ex...
How to validate phone numbers using regex
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The formatting code is going to be a waste of time if the numbers are allowed to come from outside the US.
– Daniel Earwicker
Jul 21 '09 at 12:13
26
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ASP.NET MVC A potentially dangerous Request.Form value was detected from the client when using a cus
...low HTML - best choice
using System.Web.Mvc;
[AllowHtml]
public string SomeProperty { get; set; }
On the controller action add this attribute to allow all HTML
[ValidateInput(false)]
public ActionResult SomeAction(MyViewModel myViewModel)
Brute force in web.config - definitely not recommende...
Preferred Github workflow for updating a pull request after code review
... a change to an Open Source project on Github, and received code review comments from one of the core team members.
2 Answe...
HashSet versus Dictionary w.r.t searching time to find if an item exists
Whose .Contains method will return quicker?
5 Answers
5
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In SQL Server, when should you use GO and when should you use semi-colon ;?
...MS - it isn't actual Transact SQL, it just tells SSMS to send the SQL statements between each GO in individual batches sequentially.
The ; is a SQL statement delimiter, but for the most part the engine can interpret where your statements are broken up.
The main exception, and place where the ; is ...
Is it worth using Python's re.compile?
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I've had a lot of experience running a compiled regex 1000s of times versus compiling on-the-fly, and have not noticed any perceivable difference. Obviously, this is anecdotal, and certainly not a great argument against compiling, but I've found the difference to be negligible.
EDIT:
Aft...
Request is not available in this context
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Integrated mode on IIS 7.0. This
exception happens in your
implementation of the
Application_Start method in the
global.asax file if you attempt to
access the HttpContext of the request
that started the application.
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Creating instance of type without default constructor in C# using reflection
...osted this answer here, but here is a reprint since this isn't the exact same question but has the same answer:
FormatterServices.GetUninitializedObject() will create an instance without calling a constructor. I found this class by using Reflector and digging through some of the core .Net serializ...