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Asked: 2026-05-20T11:24:29+00:00

I am totally new to SQL Server CLR. I understand that we should use

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I am totally new to SQL Server CLR. I understand that we should use CLR under the condition that business logic is really complicated to implement in SQL.

We have quite a few functions in VB.NET to process data, such as standardizing data. I am trying to implement them through CLR. The functions access a remote server first to get some reference data, then process on the local server.

However no matter how I try, I got Error

System.NullReferenceException: Object reference not set to an instance of an object.

or it returns null from the remote server.

Can we access a remote server in the CLR routine? If yes, how?

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1 Answer

  1. Editorial Team

    You can access remote servers in the .Net CLR but you really shouldn’t.

    SQL server operates in a cooperative multitasking environment, i.e. threads are trusted to terminate and complete their processing (one way or another) in a timely manner. If you start doing things like calling remote methods (which are liable to long delays) you are likely going to end up starving SQL server worker threads which will ultimately end up with Bad Things happening.

    Also see this question

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