<# .SYNOPSIS Installs SQL Server 2016 Express LocalDB on a machine. .DESCRIPTION This script installs Microsoft SQL Server 2016 Express LocalDB on a machine. .PARAMETER Force Force the script to run the MSI, even it it appears LocalDB is installed. .LINK https://docs.microsoft.com/en-us/sql/database-engine/configure-windows/sql-server-2016-express-localdb?view=sql-server-2016 https://docs.microsoft.com/en-us/sql/database-engine/install-windows/install-sql-server-from-the-command-prompt?view=sql-server-2016 #> param( [switch]$Force ) $ErrorActionPreference = 'Stop' $ProgressPreference = 'SilentlyContinue' # Workaround PowerShell/PowerShell#2138 Set-StrictMode -Version 1 $intermedateDir = "$PSScriptRoot\obj" mkdir $intermedateDir -ErrorAction Ignore | Out-Null if (-not $Force -and (Test-Path 'HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\RefCount\SqlLocalDB13')) { Write-Host "SQL Server 2016 Express LocalDB is already installed. Exiting without action. Call this script again with -Force to run the installation anyways." exit 0 } Write-Host "Installing SQL Server 2016 Express LocalDB" -f Magenta # Download SqlLocalDB.msi. $installerFilename = "SqlLocalDB.msi" $installerPath = "$intermedateDir\$installerFilename" Write-Host "" Write-Host "Downloading '$installerFilename' to '$installerPath'." Invoke-WebRequest -OutFile $installerPath -UseBasicParsing ` -Uri 'https://download.microsoft.com/download/9/0/7/907AD35F-9F9C-43A5-9789-52470555DB90/ENU/SqlLocalDB.msi' # Install LocalDB. $arguments = '/package', "`"$installerPath`"", '/NoRestart', '/Passive', ` 'IACCEPTSQLLOCALDBLICENSETERMS=YES', 'HIDEPROGRESSBAR=YES' Write-Host "" Write-Host "Running 'msiexec $arguments'." $process = Start-Process msiexec.exe -ArgumentList $arguments -NoNewWindow -PassThru -Verbose -Wait exit $process.ExitCode