Ask a related question do not know is it related question, is CSDNforumID = c5eca554-e88a-47bd-873d-58c8014f2f91 after this string of characters, what is the use

Ask a question don't know if it's a problem, that is, the string after the CSDNforumID = c5eca554-e88a-47bd-873d-58c8014f2f91, what do I have with this problem is because I see these websites and they all root the title to the url connection after the http://www.lightinthebox.com/seq asked a question I don't know if it is a problem, is the CSDN forumID = c5eca554-e88a-47bd-873d-58c8014f2f91 after this string of characters, what is the use

I have this problem because these websites all root the title behind the url connection.

Http://www.lightinthebox.com/sequined-bateau-neck-sweep-brush-train-evening-dress-inspired-by-evan-rachel-wood-at-the-emmys_p283066.html

This article has The title: Sequined Bateau Neck Sweep/Brush Train Evening Dress sort Red By Evan Rachel Wood At The Emmys

Http://www.lightinthebox.com/A-line-One-Shoulder-Short--Mini-Chiffon-Cocktail-Dress_p169421.html
This article has the title: A-line One Shoulder Knee-length Chiffon Cocktail Dress

Http://stackoverflow.com/questions/11060192/command-to-call-method-from-viewmodel
Title: Command to call method from viewmodel

What is the root cause behind ??

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Prevent others from making guesses.
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For seo
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Isn't it good? You will know the approximate content when you see the url.
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6d86ac8e-51d2-4c9b-9f74-1c2b10c15319
This is a unique key expression of oracle or SQL server.
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It is equivalent to id, but it is not a number like 1, 2, 3, 4
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Discussion

Why not use auto-increment? Reference:

It is equivalent to id, but it is not a number like 1, 2, 3, 4

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Discussion

Oh
I understand, but what if bigint is 20 bits in size? is there so many data projects in the world? Reference:

Reference:

Why not use auto-increment? Reference:

It is equivalent to id, but it is not a number like 1, 2, 3, 4


Because the number is larger than the bigint value, it will crash sooner or later.

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Discussion
Oh
I understand, but what if bigint is 20 bits in size? is there so many data projects in the world?