# Update-DbaInstance

Author Kirill Kravtsov (@nvarscar) https://nvarscar.wordpress.com/
Availability Windows only

## Synopsis

Invokes installation of SQL Server Service Packs and Cumulative Updates on local and remote servers.

## Description

Starts and automated process of updating SQL Server installation to a specific version defined in the parameters. The command will:

• Search for SQL Server installations in a remote registry
• Check if current settings are applicable to the current SQL Server versions
• Search for a KB executable in a folder specified in -Path
• Establish a PSRemote connection to the target machine if necessary
• Extract KB to a temporary folder in a current user's profile
• Run the installation from the temporary folder updating all instances on the computer at once
• Remove temporary files
• Restart the computer (if -Restart is specified)
• Repeat for each consequent KB and computer

The impact of this function is set to High, if you don't want to receive interactive prompts, set -Confirm to $false. Credentials are a required parameter for remote machines. Without specifying -Credential, the installation will fail due to lack of permissions. CredSSP is a recommended transport for running the updates remotely. Update-DbaInstance will attempt to reconfigure local and remote hosts to support CredSSP, which is why it is desirable to run this command in an elevated console at all times. CVE-2018-0886 security update is required for both local and remote hosts. If CredSSP connections are failing, make sure to apply recent security updates prior to doing anything else. When using CredSSP authentication, this function will configure CredSSP authentication for PowerShell Remoting sessions. If this is not desired (e.g.: CredSSP authentication is managed externally, or is already configured appropriately,) it can be disabled by setting the dbatools configuration option 'commands.initialize-credssp.bypass' value to$true.

Always backup databases and configurations prior to upgrade.

## Syntax

Update-DbaInstance
[[-ComputerName] <DbaInstanceParameter[]>]
[-Credential <PSCredential>]
[-Version <String[]>]
[-Type <String[]>]
[-InstanceName <String>]
[-Path <String[]>]
[-Restart]
[-Continue]
[-Throttle <Int32>]
[-Authentication <String>]
[-ExtractPath <String>]
[-ArgumentList <String[]>]
[-EnableException]
[-WhatIf]
[-Confirm]
[<CommonParameters>]

Update-DbaInstance
[[-ComputerName] <DbaInstanceParameter[]>]
[-Credential <PSCredential>] -KB <String[]>
[-InstanceName <String>]
[-Path <String[]>]
[-Restart]
[-Continue]
[-Throttle <Int32>]
[-Authentication <String>]
[-ExtractPath <String>]
[-ArgumentList <String[]>]
[-EnableException]
[-WhatIf]
[-Confirm]
[<CommonParameters>]



## Examples

##### Example: 1
PS C:\> Update-DbaInstance -ComputerName SQL1 -Version SP3 -Path \\network\share


Updates all applicable SQL Server installations on SQL1 to SP3.
Binary files for the update will be searched among all files and folders recursively in \network\share.
Prompts for confirmation before the update.

PS C:\> Update-DbaInstance -ComputerName SQL1, SQL2 -Restart -Path \\network\share -Confirm:$false  Updates all applicable SQL Server installations on SQL1 and SQL2 with the most recent patch. It will install latest ServicePack, restart the computers, install latest Cumulative Update, and finally restart the computer once again. Binary files for the update will be searched among all files and folders recursively in \network\share. Does not prompt for confirmation. ##### Example: 3 PS C:\> Update-DbaInstance -ComputerName SQL1 -Version 2012 -Type ServicePack -Path \\network\share  Updates SQL Server 2012 on SQL1 with the most recent ServicePack found in your patch repository. Binary files for the update will be searched among all files and folders recursively in \network\share. Prompts for confirmation before the update. ##### Example: 4 PS C:\> Update-DbaInstance -ComputerName SQL1 -KB 123456 -Restart -Path \\network\share -Confirm:$false


Installs KB 123456 on SQL1 and restarts the computer.
Binary files for the update will be searched among all files and folders recursively in \network\share.
Does not prompt for confirmation.

PS C:\> Update-DbaInstance -ComputerName Server1 -Version SQL2012SP3, SQL2016SP2CU3 -Path \\network\share -Restart -Confirm:$false  Updates SQL 2012 to SP3 and SQL 2016 to SP2CU3 on Server1. Each update will be followed by a restart. Binary files for the update will be searched among all files and folders recursively in \network\share. Does not prompt for confirmation. ##### Example: 6 PS C:\> Update-DbaInstance -ComputerName Server1 -Path \\network\share -Restart -Confirm:$false -ExtractPath "C:\temp"


Updates all applicable SQL Server installations on Server1 with the most recent patch. Each update will be followed by a restart.
Binary files for the update will be searched among all files and folders recursively in \network\share.
Does not prompt for confirmation.
Extracts the files in local driver on Server1 C:\temp.

##### Example: 7
PS C:\> Update-DbaInstance -ComputerName Server1 -Path \\network\share -ArgumentList "/SkipRules=RebootRequiredCheck"


Updates all applicable SQL Server installations on Server1 with the most recent patch.
Additional command line parameters would be passed to the executable.
Binary files for the update will be searched among all files and folders recursively in \network\share.

##### -Credential

Windows Credential with permission to log on to the remote server. Must be specified for any remote connection if update Repository is located on a network folder.

Alias
Required False
Pipeline false
Default Value
##### -Version

A target version of the installation you want to reach. If not specified, a latest available version would be used by default. Can be defined using the following general pattern: . Any part of the pattern can be omitted if needed: 2008R2SP1 - will update SQL 2008R2 to SP1 2016CU3 - will update SQL 2016 to CU3 of current Service Pack installed SP0CU3 - will update all existing SQL Server versions to RTM CU3 without installing any service packs SP1CU7 - will update all existing SQL Server versions to SP1 and then (after restart if -Restart is specified) to SP1CU7 CU7 - will update all existing SQL Server versions to CU7 of current Service Pack installed

Alias
Required False
Pipeline false
Default Value
##### -Type

Type of the update: All | ServicePack | CumulativeUpdate. Default: All Use -Version to limit upgrade to a certain Major version of SQL Server.

Alias
Required False
Pipeline false
Default Value @('All')
Accepted Values All,ServicePack,CumulativeUpdate
##### -InstanceName

Only updates a specific instance(s).

Alias Instance
Required False
Pipeline false
Default Value
##### -Path

Path to the folder(s) with SQL Server patches downloaded. It will be scanned recursively for available patches. Path should be available from both server with SQL Server installation and client that runs the command. All file names should match the pattern used by Microsoft: SQLServer####-KB###-x##*.exe If a file is missing in the repository, the installation will fail. Consider setting the following configuration if you want to omit this parameter: Set-DbatoolsConfig -Name Path.SQLServerUpdates -Value '\\path\to\updates'

Alias
Required False
Pipeline false
Default Value (Get-DbatoolsConfigValue -Name 'Path.SQLServerUpdates')
##### -Restart

Restart computer automatically after a successful installation of a patch and wait until it comes back online. Using this parameter is the only way to chain-install more than 1 patch on a computer, since every single patch will require a restart of said computer.

Alias
Required False
Pipeline false
Default Value False
##### -Continue

Continues a failed installation attempt when specified. Will abort a previously failed installation otherwise.

Alias
Required False
Pipeline false
Default Value False
##### -Throttle

Maximum number of computers updated in parallel. Once reached, the update operations will queue up. Default: 50

Alias
Required False
Pipeline false
Default Value 50
##### -Authentication

Chooses an authentication protocol for remote connections. If the protocol fails to establish a connection Defaults:

• CredSSP when -Credential is specified - due to the fact that repository Path is usually a network share and credentials need to be passed to the remote host to avoid the double-hop issue.
• Default when -Credential is not specified. Will likely fail if a network path is specified.
Alias
Required False
Pipeline false
Default Value @('CredSSP', 'Default')[$null -eq$Credential]
Accepted Values Default,Basic,Negotiate,NegotiateWithImplicitCredential,Credssp,Digest,Kerberos
##### -ExtractPath

Lets you specify a location to extract the update file to on the system requiring the update. e.g. C:\temp

Alias
Required False
Pipeline false
Default Value
##### -ArgumentList

A list of extra arguments to pass to the execution file. Accepts one or more strings containing command line parameters. Example: ... -ArgumentList "/SkipRules=RebootRequiredCheck", "/Q"

Alias
Required False
Pipeline false
Default Value

Download missing KBs to the first folder specified in the -Path parameter. Files would be first downloaded to the local machine (TEMP folder), and then distributed onto remote machines if needed. If the Path is a network Path, the files would be downloaded straight to the network folder and executed from there.

Alias
Required False
Pipeline false
Default Value False
##### -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.

Alias
Required False
Pipeline false
Default Value False
##### -WhatIf

Shows what would happen if the command were to run. No actions are actually performed.

Alias wi
Required False
Pipeline false
Default Value
##### -Confirm

Prompts you for confirmation before executing any changing operations within the command.

Alias cf
Required False
Pipeline false
Default Value

Want to see the source code for this command? Check out Update-DbaInstance on GitHub.
Want to see the Bill Of Health for this command? Check out Update-DbaInstance.