https://betterexplained.com/articles/the-quick-guide-to-guids/ Math lessons that click Mon, 02 Aug 2021 19:26:19 +0000 hourly 1 https://betterexplained.com/articles/the-quick-guide-to-guids/#comment-395202 Mon, 02 Aug 2021 19:26:19 +0000 http://betterexplained.com/articles/the-quick-guide-to-guids/#comment-395202 […] https://betterexplained.com/articles/the-quick-guide-to-guids/ […]

]]> https://betterexplained.com/articles/the-quick-guide-to-guids/#comment-393134 Wed, 21 Apr 2021 21:42:53 +0000 http://betterexplained.com/articles/the-quick-guide-to-guids/#comment-393134 […] ETL tool like Scribe to perform data migration, important to migrate the GUID Ids for most entities as those will be used to maintain the relationship […]

]]> https://betterexplained.com/articles/the-quick-guide-to-guids/#comment-362023 Fri, 28 Dec 2018 13:57:00 +0000 http://betterexplained.com/articles/the-quick-guide-to-guids/#comment-362023 it was really helpfull thanks for sharing Oppo-F7

]]> https://betterexplained.com/articles/the-quick-guide-to-guids/#comment-355012 Fri, 23 Nov 2018 07:14:00 +0000 http://betterexplained.com/articles/the-quick-guide-to-guids/#comment-355012 Considering that part of the GUID is made up of a timestamp, as long as everyone’s clocks are _nearly_ synchronized, the chance of colliding GUIDs are very small and it’s not like you can “run out”.
That said, as the time rolls over every few thousand years, depending on the implementation, after the first round, when you start again, collisions become much more likely each time, as the time portion of the GUID starts repeating.
So while a 128 bit number presents a huge key space, the way the numbers are generated cannot, as the article says, guarantee no conflicts.
However, 50 years, let alone thousands of years, are a long time in human history. By that time, other schemes will have been invented.
It’s a good solution that serves us well now.

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