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Asked: 2026-06-06T13:36:48+00:00

In my application code i am generating GUID using System.Guid.NewGuid() and saving this to

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In my application code i am generating GUID using System.Guid.NewGuid() and saving this to SQL server DB.

I have few questions regarding the GUID generation:

  1. when I ran the program I did not find any problem with this in terms of performance, but I still wanted to know whether we have any other better way to generate GUID.
  2. System.Guid.NewGuid() is this the only way to create GUID in .NET
    code?
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1 Answer

  1. Editorial Team

    The GUIDs generated by Guid.NewGuid are not sequential according to SQL Servers sort order. This means you are inserting randomly into your indexes which is a disaster for performance. It might not matter, if the write volume is small enough.

    You can use SQL Servers NEWSEQUENTIALGUID() function to create sequential ones, or just use an int.

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