functions/Get-DbaDbForeignKey.ps1
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function Get-DbaDbForeignKey { <# .SYNOPSIS Gets database Foreign Keys .DESCRIPTION Gets database Foreign Keys .PARAMETER SqlInstance The target SQL Server instance(s) .PARAMETER SqlCredential Allows you to login to SQL Server using alternative credentials .PARAMETER Database To get Foreign Keys from specific database(s) .PARAMETER ExcludeDatabase The database(s) to exclude - this list is auto populated from the server .PARAMETER ExcludeSystemTable This switch removes all system objects from the tables collection .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: Databases Author: Cláudio Silva ( @ClaudioESSilva | https://claudioessilva.eu) Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: MIT https://opensource.org/licenses/MIT .EXAMPLE Get-DbaDbForeignKey -SqlInstance sql2016 Gets all database Foreign Keys .EXAMPLE Get-DbaDbForeignKey -SqlInstance Server1 -Database db1 Gets the Foreign Keys for the db1 database .EXAMPLE Get-DbaDbForeignKey -SqlInstance Server1 -ExcludeDatabase db1 Gets the Foreign Keys for all databases except db1 .EXAMPLE Get-DbaDbForeignKey -SqlInstance Server1 -ExcludeSystemTable Gets the Foreign Keys from all tables that are not system objects from all databases .EXAMPLE 'Sql1','Sql2/sqlexpress' | Get-DbaDbForeignKey Gets the Foreign Keys for the databases on Sql1 and Sql2/sqlexpress #> [CmdletBinding()] param ( [parameter(Mandatory, ValueFromPipeline)] [Alias("ServerInstance", "SqlServer")] [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$SqlCredential, [object[]]$Database, [object[]]$ExcludeDatabase, [switch]$ExcludeSystemTable, [Alias('Silent')] [switch]$EnableException ) process { foreach ($instance in $SqlInstance) { try { Write-Message -Level Verbose -Message "Connecting to $instance" $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $sqlcredential } catch { Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue } $databases = $server.Databases | Where-Object IsAccessible if ($Database) { $databases = $databases | Where-Object Name -In $Database } if ($ExcludeDatabase) { $databases = $databases | Where-Object Name -NotIn $ExcludeDatabase } foreach ($db in $databases) { if (!$db.IsAccessible) { Write-Message -Level Warning -Message "Database $db is not accessible. Skipping." continue } foreach($tbl in $db.Tables) { if ( (Test-Bound -ParameterName ExcludeSystemTable) -and $tbl.IsSystemObject ) { continue } if ($tbl.ForeignKeys.Count -eq 0) { Write-Message -Message "No Foreign Keys exist in $tbl table on the $db database on $instance" -Target $tbl -Level Verbose continue } foreach ($fk in $tbl.ForeignKeys) { Add-Member -Force -InputObject $fk -MemberType NoteProperty -Name ComputerName -value $server.NetName Add-Member -Force -InputObject $fk -MemberType NoteProperty -Name InstanceName -value $server.ServiceName Add-Member -Force -InputObject $fk -MemberType NoteProperty -Name SqlInstance -value $server.DomainInstanceName Add-Member -Force -InputObject $fk -MemberType NoteProperty -Name Database -value $db.Name $defaults = 'ComputerName', 'InstanceName', 'SqlInstance', 'Database', 'Table', 'ID', 'CreateDate', 'DateLastModified', 'Name', 'IsEnabled', 'IsChecked', 'NotForReplication', 'ReferencedKey', 'ReferencedTable', 'ReferencedTableSchema' Select-DefaultView -InputObject $fk -Property $defaults } } } } } } |