functions/Disconnect-DbaInstance.ps1
function Disconnect-DbaInstance { <# .SYNOPSIS Disconnects or closes a connection to a SQL Server instance .DESCRIPTION Disconnects or closes a connection to a SQL Server instance To clear all of your connection pools, use Clear-DbaConnectionPool .PARAMETER InputObject The server object to disconnect from, usually piped in from Get-DbaConnectedInstance .PARAMETER WhatIf Shows what would happen if the command were to run. No actions are actually performed. .PARAMETER Confirm Prompts you for confirmation before executing any changing operations within the command. .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. .NOTES Tags: Connection Author: Chrissy LeMaire (@cl), netnerds.net Website: https://dbatools.io Copyright: (c) 2021 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Disconnect-DbaInstance .EXAMPLE PS C:\> Get-DbaConnectedInstance | Disconnect-DbaInstance Disconnects all connected instances .EXAMPLE PS C:\> Get-DbaConnectedInstance | Out-GridView -Passthru | Disconnect-DbaInstance Disconnects selected SQL Server instances .EXAMPLE PS C:\> $server = Connect-DbaInstance -SqlInstance sql01 PS C:\> $server | Disconnect-DbaInstance Disconnects the $server connection #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = "Low")] param ( [parameter(ValueFromPipeline)] [psobject[]]$InputObject, [switch]$EnableException ) process { # to avoid enumeration problems when piped $objects += $InputObject } end { foreach ($object in $objects) { if ($object.ConnectionObject) { $servers = $object.ConnectionObject } else { $servers = $object } foreach ($server in $servers) { try { if ($server.ConnectionContext) { if ($Pscmdlet.ShouldProcess($server.Name, "Disconnecting SQL Connection")) { $null = $server.ConnectionContext.Disconnect() if ($script:connectionhash[$server.ConnectionContext.ConnectionString]) { Write-Message -Level Verbose -Message "removing from connection hash" $null = $script:connectionhash.Remove($server.ConnectionContext.ConnectionString) } [pscustomobject]@{ SqlInstance = $server.Name ConnectionString = (Hide-ConnectionString -ConnectionString $server.ConnectionContext.ConnectionString) ConnectionType = $server.GetType().FullName State = "Disconnected" } | Select-DefaultView -Property SqlInstance, ConnectionType, State } } if ($server.GetType().Name -eq "SqlConnection") { if ($Pscmdlet.ShouldProcess($server.DataSource, "Closing SQL Connection")) { if ($server.State -eq "Open") { $null = $server.Close() } if ($script:connectionhash[$server.ConnectionString]) { Write-Message -Level Verbose -Message "removing from connection hash" $null = $script:connectionhash.Remove($server.ConnectionString) } [pscustomobject]@{ SqlInstance = $server.DataSource ConnectionString = (Hide-ConnectionString -ConnectionString $server.ConnectionString) ConnectionType = $server.GetType().FullName State = $server.State } | Select-DefaultView -Property SqlInstance, ConnectionType, State } } } catch { Stop-Function -Message "Failed to disconnect $object" -ErrorRecord $PSItem -Continue } } } } } # 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