functions/Copy-DbaDatabaseAssembly.ps1
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function Copy-DbaDatabaseAssembly { <# .SYNOPSIS Copy-DbaDatabaseAssembly migrates assemblies from one SQL Server to another. .DESCRIPTION By default, all assemblies are copied. If the assembly already exists on the destination, it will be skipped unless -Force is used. This script does not yet copy dependencies or dependent objects. .PARAMETER Source Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or higher. .PARAMETER SourceSqlCredential Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use: $scred = Get-Credential, then pass $scred object to the -SourceSqlCredential parameter. Windows Authentication will be used if SourceSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials. To connect as a different Windows user, run PowerShell as that user. .PARAMETER Destination Destination SQL Server. You must have sysadmin access and the server must be SQL Server 2000 or higher. .PARAMETER DestinationSqlCredential Allows you to login to servers using SQL Logins instead of Windows Authentication (AKA Integrated or Trusted). To use: $dcred = Get-Credential, then pass this $dcred to the -DestinationSqlCredential parameter. Windows Authentication will be used if DestinationSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials. To connect as a different Windows user, run PowerShell as that user. .PARAMETER Assembly The assembly(ies) to process. This list is auto-populated from the server. If unspecified, all assemblies will be processed. .PARAMETER ExcludeAssembly The assembly(ies) to exclude. This list is auto-populated from the server. .PARAMETER WhatIf If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run. .PARAMETER Confirm If this switch is enabled, you will be prompted for confirmation before executing any operations that change state. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .PARAMETER Force If this switch is enabled, existing assemblies on Destination with matching names from Source will be dropped. .NOTES Tags: Migration, Assembly Author: Chrissy LeMaire (@cl), netnerds.net Requires: sysadmin access on SQL Servers Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0 .LINK http://dbatools.io/Get-SqlDatabaseAssembly .EXAMPLE Copy-DbaDatabaseAssembly -Source sqlserver2014a -Destination sqlcluster Copies all assemblies from sqlserver2014a to sqlcluster using Windows credentials. If assemblies with the same name exist on sqlcluster, they will be skipped. .EXAMPLE Copy-DbaDatabaseAssembly -Source sqlserver2014a -Destination sqlcluster -Assembly dbname.assemblyname, dbname3.anotherassembly -SourceSqlCredential $cred -Force Copies two assemblies, the dbname.assemblyname and dbname3.anotherassembly from sqlserver2014a to sqlcluster using SQL credentials for sqlserver2014a and Windows credentials for sqlcluster. If an assembly with the same name exists on sqlcluster, it will be dropped and recreated because -Force was used. In this example, anotherassembly will be copied to the dbname3 database on the server sqlcluster. .EXAMPLE Copy-DbaThing -Source sqlserver2014a -Destination sqlcluster -WhatIf -Force Shows what would happen if the command were executed using force. #> [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)] param ( [parameter(Mandatory = $true)] [DbaInstanceParameter]$Source, [PSCredential]$SourceSqlCredential, [parameter(Mandatory = $true)] [DbaInstanceParameter]$Destination, [PSCredential]$DestinationSqlCredential, [object[]]$Assembly, [object[]]$ExcludeAssembly, [switch]$Force, [switch][Alias('Silent')]$EnableException ) begin { $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential $destServer = Connect-SqlInstance -SqlInstance $Destination -SqlCredential $DestinationSqlCredential $source = $sourceServer.DomainInstanceName $destination = $destServer.DomainInstanceName if ($sourceServer.VersionMajor -lt 9 -or $destServer.VersionMajor -lt 9) { throw "Assemblies are only supported in SQL Server 2005 and newer. Quitting." } } process { $sourceAssemblies = @() foreach ($database in $sourceServer.Databases) { try { # a bug here requires a try/catch $userAssemblies = $database.Assemblies | Where-Object IsSystemObject -eq $false foreach ($assembly in $userAssemblies) { $sourceAssemblies += $assembly } } catch { } } $destAssemblies = @() foreach ($database in $destServer.Databases) { try { # a bug here requires a try/catch $userAssemblies = $database.Assemblies | Where-Object IsSystemObject -eq $false foreach ($assembly in $userAssemblies) { $destAssemblies += $assembly } } catch { } } foreach ($currentAssembly in $sourceAssemblies) { $assemblyName = $currentAssembly.Name $dbName = $currentAssembly.Parent.Name $destDb = $destServer.Databases[$dbName] $copyDbAssemblyStatus = [pscustomobject]@{ SourceServer = $sourceServer.Name SourceDatabase = $dbName DestinationServer = $destServer.Name DestinationDatabase = $destDb Name = $assemblyName Status = $null DateTime = [Sqlcollaborative.Dbatools.Utility.DbaDateTime](Get-Date) } if (!$destDb) { $copyDbAssemblyStatus.Status = "Skipped" $copyDbAssemblyStatus Write-Message -Level Warning -Message "Destination database $dbName does not exist. Skipping $assemblyName."; continue } if ($Assembly -and $Assembly -notcontains "$dbName.$assemblyName" -or $ExcludeAssembly -contains "$dbName.$assemblyName") { continue } if ($currentAssembly.AssemblySecurityLevel -eq "External" -and $destDb.Trustworthy -eq $false) { if ($Pscmdlet.ShouldProcess($destination, "Setting $dbName to External")) { Write-Message -Level Warning -Message "Setting $dbName Security Level to External on $destination." $sql = "ALTER DATABASE $dbName SET TRUSTWORTHY ON" try { Write-Message -Level Debug -Message $sql $destServer.Query($sql) } catch { $copyDbAssemblyStatus.Status = "Failed" $copyDbAssemblyStatus Stop-Function -Message "Issue setting security level." -Target $destDb -InnerErrorRecord $_ } } } if ($destServer.Databases[$dbName].Assemblies.Name -contains $currentAssembly.name) { if ($force -eq $false) { $copyDbAssemblyStatus.Status = "Skipped" $copyDbAssemblyStatus Write-Message -Level Warning -Message "Assembly $assemblyName exists at destination in the $dbName database. Use -Force to drop and migrate." continue } else { if ($Pscmdlet.ShouldProcess($destination, "Dropping assembly $assemblyName and recreating")) { try { Write-Message -Level Verbose -Message "Dropping assembly $assemblyName." Write-Message -Level Verbose -Message "This won't work if there are dependencies." $destServer.Databases[$dbName].Assemblies[$assemblyName].Drop() Write-Message -Level Verbose -Message "Copying assembly $assemblyName." $sql = $currentAssembly.Script() Write-Message -Level Debug -Message $sql $destServer.Query($sql,$dbName) } catch { $copyDbAssemblyStatus.Status = "Failed" $copyDbAssemblyStatus Stop-Function -Message "Issue dropping assembly." -Target $assemblyName -InnerErrorRecord $_ -Continue } } } } if ($Pscmdlet.ShouldProcess($destination, "Creating assembly $assemblyName")) { try { Write-Message -Level Verbose -Message "Copying assembly $assemblyName from database." $sql = $currentAssembly.Script() Write-Message -Level Debug -Message $sql $destServer.Query($sql,$dbName) $copyDbAssemblyStatus.Status = "Successful" $copyDbAssemblyStatus } catch { $copyDbAssemblyStatus.Status = "Failed" $copyDbAssemblyStatus Stop-Function -Message "Issue creating assembly." -Target $assemblyName -InnerErrorRecord $_ } } } } end { Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Copy-SqlDatabaseAssembly } } |