Copy-DbaLinkedServer - Fix issues when migrating to SQL Server 2025

[andreasjordan]

Type of Change

• Bug fix (non-breaking change, fixes Copy-DbaLinkedServer issues copying to SQL 2022 and SQL 2025 #10336 )
• New feature (non-breaking change, adds functionality, fixes # )
• Breaking change (affects multiple commands or functionality, fixes # )
• Ran manual Pester test and has passed (Invoke-ManualPester)
• Adding code coverage to existing functionality
• Pester test is included
• If new file reference added for test, has is been added to github.com/dataplat/appveyor-lab ?
• Unit test is included
• Documentation
• Build system

Should solve the issue in most situations. We can upgrade the code later if we better test cases.

This can only be testet with SQL Server 2025, so not on AppVeyor.

I use to test in my lab:

$cred = Get-Credential
$target = 'sql04\sql2019'
$source = 'sql03\sql2019'
$destination = 'sql03\sql2025'
$null = New-DbaLogin -SqlInstance $target -Login $cred.UserName -SecurePassword $cred.Password
$null = New-DbaLinkedServer -SqlInstance $source -LinkedServer $target -DataSource tcp:$target -SecurityContext SpecifiedSecurityContext -SecurityContextRemoteUser $cred.UserName -SecurityContextRemoteUserPassword $cred.Password -Provider MSOLEDBSQL
$null = Invoke-DbaQuery -SqlInstance $source -Query "SELECT * FROM [$target].master.sys.databases"
$result = Copy-DbaLinkedServer -Source $source -Destination $destination
$result | Format-Table *
$null = Invoke-DbaQuery -SqlInstance $destination -Query "SELECT * FROM [$target].master.sys.databases"
$null = Remove-DbaLinkedServer -SqlInstance $source -LinkedServer $target -Force -Confirm:$false
$null = Remove-DbaLinkedServer -SqlInstance $destination -LinkedServer $target -Force -Confirm:$false
$null = Remove-DbaLogin -SqlInstance $linkTarget -Login $cred.UserName -Confirm:$false