Top "Guid" questions

Is a GUID unique 100% of the time?

Is a GUID unique 100% of the time? Will it stay unique over multiple threads?

language-agnostic guid

Generate GUID in MySQL for existing Data?

I've just imported a bunch of data to a MySQL table and I have a column "GUID" that I want …

mysql random guid

How to test valid UUID/GUID?

How to check if variable contains valid UUID/GUID identifier? I'm currently interested only in validating types 1 and 4, but it …

javascript regex validation uuid guid

What are the best practices for using a GUID as a primary key, specifically regarding performance?

I have an application that uses GUID as the Primary Key in almost all tables and I have read that …

sql-server entity-framework database-design primary-key guid

How to generate a GUID in Oracle?

Is it possible to auto-generate a GUID into an Insert statement? Also, what type of field should I use to …

oracle guid

How to convert a GUID to a string in C#?

I'm new to C#. I know in vb.net, i can do this: Dim guid as string = System.Guid.NewGuid.…

c# string guid

How should I store GUID in MySQL tables?

Do I use varchar(36) or are there any better ways to do it?

mysql guid uuid

Generate a UUID on iOS from Swift

In my iOS Swift app I want to generate random UUID (GUID) strings for use as a table key, and …

ios swift cocoa-touch guid core-foundation

How to validate GUID is a GUID

How to determine if a string contains a GUID vs just a string of numbers. will a GUID always contain …

c# asp.net string guid

C# guid and SQL uniqueidentifier

I want to create a GUID and store it in the DB. In C# a guid can be created using …

c# sql guid uniqueidentifier