guid Questions
12
Solved
How safe is it to use UUID to uniquely identify something (I'm using it for files uploaded to the server)? As I understand it, it is based off random numbers. However, it seems to me that given eno...
Jobbery asked 20/7, 2009 at 18:6
6
Is there a command line tool for Unix and Windows that uses the same algorithm to create GUIDs for both platforms?
Maddie asked 20/2, 2009 at 15:2
11
Solved
How can I generate a GUID in a batch file running using the commandline in Windows?
Valenciavalenciennes asked 30/11, 2010 at 11:54
9
Solved
I have an application that uses GUID as the Primary Key in almost all tables and I have read that there are issues about performance when using GUID as Primary Key. Honestly, I haven't seen a...
Meakem asked 13/8, 2012 at 16:3
7
Solved
I know there is a minute possibility of a clash but if I generated a batch of 1000 GUIDs (for example), would it be safe to assume they're all unique to save testing each one?
Bonus question
An o...
Scholz asked 4/6, 2010 at 20:30
2
Solved
I am using Swashbuckle to generate Swagger in my .Net Core WebAPI project. As you can see below, it generates a GUID of type string. I would like to generate a random Guid and replace "string" with...
Yuma asked 16/8, 2019 at 17:3
9
Solved
We use GUIDs extensively in our database design; Business Object properties provide Guid.Empty GUIDs for DB null values and null is always saved to the database if the value is Guid.Empty.
Apart f...
3
I have a table with an auto-increment ID field as shown below.
+------------+-------------------------------------+
| company_id | name |
+------------+-------------------------------------+
| 1 ...
Sarmentose asked 8/3, 2011 at 9:33
7
Solved
Is there a built in function equivalent to .NET's
Guid.NewGuid();
in Cocoa?
My desire is to produce a string along the lines of 550e8400-e29b-41d4-a716-446655440000 which represents a unique id...
Arcograph asked 15/11, 2008 at 0:30
6
Solved
I am faced with the dilemma of changing my primary keys from int identities to Guid. I'll put my problem straight up. It's a typical Retail management app, with POS and back office functionality. H...
Tildi asked 8/6, 2010 at 9:12
6
Solved
I want to create a cryptographically secure GUID (v4) in .NET.
.NET's Guid.NewGuid() function is not cryptographically secure, but .NET does provide the System.Security.Cryptography.RNGCryptoServi...
7
Solved
I need to create a GUID in an unmanaged windows C++ project. I'm used to C#, where I'd use Guid.NewGuid(). What's the (unmanaged windows) C++ version?
10
Solved
Is it possible to auto-generate a GUID into an Insert statement?
Also, what type of field should I use to store this GUID?
7
Solved
Vim doesn't have a built-in GUID generator.
For the project I'm working on, I can rely on Powershell being available, so the following gives me a GUID string:
[guid]::NewGuid().ToString()
I cal...
Elodea asked 10/9, 2012 at 10:55
4
Solved
What is the difference between these two ways of converting a string to System.Guid? Is there a reason to choose one over the other?
var myguid = Guid.Parse("9546482E-887A-4CAB-A403-AD9C326FFDA5")...
3
Solved
I am looking for the easiest way to compare two GUIDs for equality in C++. Surely there is a predefined function for that.
The solution needs to work with Visual C++ 2010.
I am talking of GUID as d...
Selfesteem asked 6/8, 2012 at 20:10
13
Solved
I've been looking at the code in this tutorial, and I found that it uses My.Computer.Name to save settings that shouldn't roam between computers. It's entirely possible, however, for a user to have...
3
Solved
I am building an application to transfer data from an SQL server to an offsite location via ftp and XML files.
I am building the XML data for each file via a query with FOR XML PATH('path'), TYPE....
Vaud asked 19/6, 2013 at 21:19
2
Solved
I have developed a performance critical and CPU intensive application in Python. To reach acceptable performance I'm using PyPy and multiple processes generated with os.fork. Overall I'm now satisf...
Admirable asked 12/8, 2018 at 17:29
3
I don't understand the meaning of "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" in RFC 6455.
Why does the server need this magic string?
And why does the WebSocket protocol need this mechanism?
...
Rh asked 19/11, 2012 at 14:38
1
Solved
I created a console application which just generated random GUIDs, but it came to my attention that it keeps having a 4 at the same location... Why is that?
Here's my code:
Sub Main()
Dim gener...
4
Solved
A while ago I worked on a web application where users could buy tickets. Due to the way our client's processes worked, what you effectively got as a result of your purchase was a URL with the ticke...
Omsk asked 6/9, 2010 at 16:31
1
Solved
Mysql offers a UUID() function,
which returns an rfc 4122 version 1 guid.
This is an easily guessed timestamp + node_id bit string.
How may we insert randomized version 4 guids?
(Defining a new fun...
Bluet asked 8/4, 2020 at 21:20
5
Solved
I'm trying to convert a string to GUID with sscanf:
GUID guid;
sscanf( "11111111-2222-3333-4455-667788995511", "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
&guid.Data1, &guid...
1
Solved
Edit: Added plugins configuration for more clarity
I am using uuid package in a rollup project. At first I was getting a warning for external dependency crypto. So I added external and output.gl...
Farrar asked 27/1, 2020 at 19:27
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