internal/functions/Get-SqlServerUpdate.ps1
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function Get-SqlServerUpdate { <# Originally based on https://github.com/adbertram/PSSqlUpdater Internal function. Provides information on the target update version for a specific set of SQL Server instances based on current and target SQL Server levels. Component parameter is using the output object of Get-SqlInstanceComponent. #> [CmdletBinding(DefaultParameterSetName = 'Latest')] param ( [Parameter(Mandatory)] [ValidateNotNullOrEmpty()] [DbaInstanceParameter]$ComputerName, [pscredential]$Credential, [Parameter(Mandatory, ParameterSetName = 'Latest')] [ValidateSet('ServicePack', 'CumulativeUpdate')] [string]$Type, [object[]]$Component, [Parameter(ParameterSetName = 'Number')] [int]$ServicePack, [Parameter(ParameterSetName = 'Number')] [int]$CumulativeUpdate, [Parameter(Mandatory, ParameterSetName = 'KB')] [ValidateNotNullOrEmpty()] [string]$KB, [string]$InstanceName, [bool]$EnableException = $EnableException, [bool]$Continue ) process { # check if any type of the update was specified if ($PSCmdlet.ParameterSetName -eq 'Number' -and -not ((Test-Bound ServicePack) -or (Test-Bound CumulativeUpdate))) { Stop-Function -Message "No update was specified, provide at least one value for either SP/CU" return } $computer = $ComputerName.ComputerName $verCount = ($Component | Measure-Object).Count $verDesc = ($Component | Foreach-Object { "$($_.Version.NameLevel) ($($_.Version.Build))" }) -join ', ' Write-Message -Level Debug -Message "Selected $verCount existing SQL Server version(s): $verDesc" # Group by version $currentVersionGroups = $Component | Group-Object -Property { $_.Version.NameLevel } #Check if more than one version is found if (($currentVersionGroups | Measure-Object ).Count -gt 1 -and ($CumulativeUpdate -or $ServicePack) -and !$MajorVersion) { Stop-Function -Message "Updating multiple different versions of SQL Server to a specific SP/CU is not supported. Please specify a version of SQL Server on $computer that you want to update." return } ## Find the architecture of the computer if ($arch = (Get-DbaCmObject -ComputerName $computer -ClassName 'Win32_ComputerSystem').SystemType) { if ($arch -eq 'x64-based PC') { $arch = 'x64' } else { $arch = 'x86' } } else { Write-Message -Level Warning -Message "Failed to determine the arch of $computer, using x64 by default" $arch = 'x64' } $targetLevel = '' # Launch a setup sequence for each version found foreach ($currentGroup in $currentVersionGroups) { $currentMajorVersion = "SQL" + $currentGroup.Name $currentMajorNumber = $currentGroup.Name # Use the earliest version in case specifics are needed $currentVersion = $currentGroup.Group | Sort-Object -Property { $_.Version.BuildLevel } | Select-Object -ExpandProperty Version -First 1 #create output object $output = [pscustomobject]@{ ComputerName = $ComputerName MajorVersion = $currentMajorNumber Build = $currentVersion.Build Architecture = $arch TargetVersion = $null TargetLevel = $null KB = $null Successful = $false Restarted = $false InstanceName = $InstanceName Installer = $null ExtractPath = $null Notes = @() ExitCode = $null Log = $null } # Find target KB number based on provided SP/CU levels or KB numbers if ($CumulativeUpdate -gt 0) { #Cumulative update is present - installing CU if (Test-Bound -Parameter ServicePack) { #Service pack is present - using it as a reference $targetKB = Get-DbaBuildReference -MajorVersion $currentMajorNumber -ServicePack $ServicePack -CumulativeUpdate $CumulativeUpdate } else { #Service pack not present - using current SP level $targetSP = $currentVersion.SPLevel | Where-Object { $_ -ne 'LATEST' } | Select-Object -First 1 $targetKB = Get-DbaBuildReference -MajorVersion $currentMajorNumber -ServicePack $targetSP -CumulativeUpdate $CumulativeUpdate } } elseif ($ServicePack -gt 0) { #Service pack number was passed without CU - installing service pack $targetKB = Get-DbaBuildReference -MajorVersion $currentMajorNumber -ServicePack $ServicePack } elseif ($KB) { $targetKB = Get-DbaBuildReference -KB $KB if ($targetKB -and $currentMajorNumber -ne $targetKB.NameLevel) { Write-Message -Level Debug -Message "$($targetKB.NameLevel) is not a target Major version $($currentMajorNumber), skipping" continue } } else { #No parameters = latest patch. Find latest SQL Server build and corresponding SP and CU KBs $latestCU = Test-DbaBuild -Build $currentVersion.BuildLevel -MaxBehind '0CU' if (!$latestCU.Compliant) { #more recent build is found, get KB number depending on what is the current upgrade $Type $targetKB = Get-DbaBuildReference -Build $latestCU.BuildTarget $targetSP = $targetKB.SPLevel | Where-Object { $_ -ne 'LATEST' } | Select-Object -First 1 if ($Type -eq 'CumulativeUpdate') { if ($currentVersion.SPLevel -notcontains 'LATEST') { $currentSP = $currentVersion.SPLevel | Where-Object { $_ -ne 'LATEST' } | Select-Object -First 1 Stop-Function -Message "Current SP version $currentMajorVersion$currentSP is not the latest available. Make sure to upgade to latest SP level before applying latest CU." -Continue } $targetLevel = "$($targetKB.SPLevel | Where-Object { $_ -ne 'LATEST' })$($targetKB.CULevel)" Write-Message -Level Debug -Message "Found a latest Cumulative Update $targetLevel (KB$($targetKB.KBLevel))" } elseif ($Type -eq 'ServicePack') { $targetKB = Get-DbaBuildReference -MajorVersion $targetKB.NameLevel -ServicePack $targetSP $targetLevel = $targetKB.SPLevel | Where-Object { $_ -ne 'LATEST' } if ($currentVersion.SPLevel -contains 'LATEST') { Write-Message -Message "No need to update $currentMajorVersion to $targetLevel - it's already on the latest SP version" -Level Verbose continue } Write-Message -Level Debug -Message "Found a latest Service Pack $targetLevel (KB$($targetKB.KBLevel))" } } else { Write-Message -Message "$($currentVersion.Build) on computer [$($computer)] is already the latest available." -Level Verbose continue } } if ($targetKB.KBLevel) { if ($targetKB.MatchType -ne 'Exact') { Stop-Function -Message "Couldn't find an exact build match with specified parameters while updating $currentMajorVersion" -Continue } $output.TargetVersion = $targetKB $targetLevel = "$($targetKB.SPLevel | Where-Object { $_ -ne 'LATEST' })$($targetKB.CULevel)" $targetKBLevel = $targetKB.KBLevel | Select-Object -First 1 Write-Message -Level Verbose -Message "Found applicable upgrade for SQL$($targetKB.NameLevel) to $targetLevel (KB$($targetKBLevel))" $output.KB = $targetKBLevel } else { $msg = "Could not find a KB$KB reference for $currentMajorVersion SP $ServicePack CU $CumulativeUpdate" $output.Notes += $msg $output Stop-Function -Message $msg -Continue } # Compare versions - whether to proceed with the installation $needsUpgrade = $false foreach ($currentComponent in $currentGroup.Group) { $groupVersion = $currentComponent.Version #target version is less than requested if ($groupVersion.BuildLevel -lt $targetKB.BuildLevel) { $needsUpgrade = $true } #target version is the same but installation has failed last time elseif ($groupVersion.BuildLevel -eq $targetKB.BuildLevel -and $Continue -and $currentComponent.Resume) { $needsUpgrade = $true } } if (!$needsUpgrade) { Write-Message -Message "Current $currentMajorVersion version $($currentVersion.BuildLevel) on computer [$($computer)] matches or already higher than target version $($targetKB.BuildLevel)" -Level Verbose continue } $output.TargetLevel = $targetLevel $output.Successful = $true #Return the object for further processing $output } } } |