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How to assign NULL to optional parameters in VB.NET 1.1

I tried DbNull.Value but no luck. How to set a default value as null for a string parameter that is null in VB.NET? It is strange to see that VB has nothing like zero, as most other languages ​​do. Also what is the difference between null and DbNull and Nothing. Thanks guys.

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Nothing- this is what you use in VB for null, so VB does not null, but is DBNullused to transfer nullto the database when, for example, you create a call for a stored procedure and one of its input parameters must be zero.

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use nothinginsteadnull

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VB.Net null - Nothing.

, # null, # default(T). , , .

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Source: https://habr.com/ru/post/1781479/

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