What exactly is GUID? Why and where I should use it?
Dec 16, 2008 · GUID technically stands for globally unique identifier. What it is, actually, is a 128 bit structure that is unlikely to ever repeat or create a collision. If you do the maths, the domain of values …
database design - What is uniqueidentifier type? - Stack Overflow
Jan 15, 2011 · In SQL server there is a type uniqueidentifier? What is this? What does it do? What is the difference between this and using primary key
c# - .NET unique object identifier - Stack Overflow
Apr 15, 2009 · Is there a way of getting a unique identifier of an instance? GetHashCode() is the same for the two references pointing to the same instance. However, two different instances can (quite …
Unique identifier for HTML elements - Stack Overflow
Jul 21, 2010 · Besides the ID, if you say you want a unique identifier for an HTML element (let’s say a div). I browsed the DOM for something (like a number or string) that was unique for each element; …
windows - Generating a unique machine id - Stack Overflow
Sep 19, 2008 · I need to write a function that generates an id that is unique for a given machine running a Windows OS. Currently, I'm using WMI to query various hardware parameters and concatenate …
How can I create unique IDs with JavaScript? - Stack Overflow
Mar 19, 2019 · 4 Random is not unique. Times values are not unique. The concepts are quite different and the difference rears its ugly head when your application scales and is distributed. Many of the …
How to generate a unique numeric ID in SQL Server (not using identity ...
Nov 12, 2020 · One option here would be to use a UUID to represent each unique record. Should you want to generate the UUID within SQL Server, you could use the NEWID() function (see the …
Is there a unique Android device ID? - Stack Overflow
May 7, 2010 · The question asks for a unique DEVICE identifier (not installation identifier), so I disagree with your statement. The blog is making an assumption that what you want is not necessarily to track …
How do I create a unique ID in Java? - Stack Overflow
Sep 7, 2009 · I'm looking for the best way to create a unique ID as a String in Java. Any guidance appreciated, thanks. I should mention I'm using Java 5.
sql - Adding a uniqueidentifier column and adding the default to ...
Jul 4, 2016 · ADD ChatId UniqueIdentifier NOT NULL, UNIQUE(ChatId), CONSTRAINT "ChatId_default" SET DEFAULT newid() I want to be able to make this column unique, and I want it to be able to …