Why would you want to not have the default instance name in a SQL server connection string?

One of our customers does not want to put the default instance name "MSSQLS开发者_运维问答ERVER" in the connection string. Unfortunately the dba has not replied to any of my emails inquiring what the problem is?

Any reasons why this would cause an issue?

JD

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The only "problem" I would see is the confusion that would be caused when someone looks at the connection string and mistakenly thinks that they are using a named instance instead of the default.

This is one of the rare cases where I think you would actually make things clearer by omitting information.