Variables in modules in PowerShell

powershell module

Function SetSQLServerAddr ([string] $name){    $SQLServer = $name}

That creates a new local $SQLServer in the scope of that function.

If you want to update a variable at module (.psm1) scope then you need to prefix the name to indicate that:

Function SetSQLServerAddr ([string] $name){    $script:SQLServer = $name}

For more on scopes see get-help about_scopes.

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