functions/Remove-DbaDbSchema.ps1
function Remove-DbaDbSchema { <# .SYNOPSIS Drops one or more schemas from the specified database(s). .DESCRIPTION Drops one or more schemas from the specified database(s). As noted in the remarks section of the documentation for DROP SCHEMA there must not be any objects in the schema. .PARAMETER SqlInstance The target SQL Server instance or instances. This can be a collection and receive pipeline input to allow the function to be executed against multiple SQL Server instances. .PARAMETER SqlCredential Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential). Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported. For MFA support, please use Connect-DbaInstance. .PARAMETER Database The target database(s). .PARAMETER Schema The name(s) of the schema(s) .PARAMETER InputObject Allows piping from Get-DbaDatabase. .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: Data, Database, Migration, Permission, Security, Schema, Table, User Author: Adam Lancaster https://github.com/lancasteradam dbatools PowerShell module (https://dbatools.io) Copyright: (c) 2021 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Remove-DbaDbSchema .EXAMPLE PS C:\> Remove-DbaDbSchema -SqlInstance sqldev01 -Database example1 -Schema TestSchema1 Removes the TestSchema1 schema in the example1 database in the sqldev01 instance. .EXAMPLE PS C:\> Get-DbaDatabase -SqlInstance sqldev01, sqldev02 -Database example1 | Remove-DbaDbSchema -Schema TestSchema1, TestSchema2 Passes in the example1 db via pipeline and removes the TestSchema1 and TestSchema2 schemas. #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'High')] param ( [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$SqlCredential, [string[]]$Database, [Parameter(Mandatory)] [string[]]$Schema, [parameter(ValueFromPipeline)] [Microsoft.SqlServer.Management.Smo.Database[]]$InputObject, [switch]$EnableException ) process { if ((Test-Bound -ParameterName SqlInstance) -and (Test-Bound -Not -ParameterName Database)) { Stop-Function -Message "Database is required when SqlInstance is specified" return } foreach ($instance in $SqlInstance) { $InputObject += Get-DbaDatabase -SqlInstance $instance -SqlCredential $SqlCredential -Database $Database } foreach ($db in $InputObject) { foreach ($sName in $Schema) { if ($Pscmdlet.ShouldProcess($db.Parent.Name, "Dropping the schema $sName on the database $($db.Name)")) { try { $schemaObject = $db | Get-DbaDbSchema -Schema $sName $schemaObject.Drop() } catch { Stop-Function -Message "Failure on $($db.Parent.Name) to drop the schema $sName in the database $($db.Name)" -ErrorRecord $_ -Continue } } } } } } # 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