Remove-DbaDatabase

Synopsis

Removes user databases using multiple fallback methods to handle stuck or locked databases.

Description

Removes user databases by attempting three different drop methods in sequence until one succeeds. First tries the standard KillDatabase() method, then attempts to set the database to single-user mode with rollback immediate before dropping, and finally uses the SMO Drop() method. This approach handles databases that are stuck due to active connections, replication, mirroring, or other locks that prevent normal removal. System databases are automatically excluded from removal operations.

Syntax

Remove-DbaDatabase
    [-SqlCredential <PSCredential>]
    [-EnableException]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

Remove-DbaDatabase -SqlInstance <DbaInstanceParameter[]>
    [-SqlCredential <PSCredential>]
    -Database <Object[]>
    [-EnableException]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

Remove-DbaDatabase
    [-SqlCredential <PSCredential>]
    -InputObject <Database[]>
    [-EnableException]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

Examples

Example: 1

PS C:\> Remove-DbaDatabase -SqlInstance sql2016 -Database containeddb

Prompts then removes the database containeddb on SQL Server sql2016

Example: 2

PS C:\> Remove-DbaDatabase -SqlInstance sql2016 -Database containeddb, mydb

Prompts then removes the databases containeddb and mydb on SQL Server sql2016

Example: 3

PS C:\> Remove-DbaDatabase -SqlInstance sql2016 -Database containeddb -Confirm:$false

Does not prompt and swiftly removes containeddb on SQL Server sql2016

Example: 4

PS C:\> Get-DbaDatabase -SqlInstance server\instance | Remove-DbaDatabase

Removes all the user databases from server\instance

Example: 5

PS C:\> Get-DbaDatabase -SqlInstance server\instance | Remove-DbaDatabase -Confirm:$false

Removes all the user databases from server\instance without any confirmation

Required Parameters

-SqlInstance

The target SQL Server instance or instances.You must have sysadmin access and server version must be SQL Server version 2000 or higher.

-Database

Specifies the user database(s) to remove from the SQL Server instance. Accepts multiple database names and supports wildcards for pattern matching.
Use this when you need to remove specific databases rather than all user databases. System databases (master, model, msdb, tempdb, resource) are automatically excluded and cannot be removed.

-InputObject

Accepts database objects from the pipeline, typically from Get-DbaDatabase or other dbatools database commands.
Use this for pipeline operations when you want to filter databases first, then remove the filtered results. This provides more flexibility than specifying database names directly.

Optional Parameters

-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.

-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.

-WhatIf

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

-Confirm

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

Outputs

PSCustomObject

Returns one object per database that was processed, regardless of success or failure.

Properties:

• ComputerName: The name of the computer where the SQL Server instance is running
• InstanceName: The SQL Server instance name
• SqlInstance: The full SQL Server instance name (computer\instance format)
• Database: The name of the database that was processed
• Status: Either “Dropped” when the database was successfully removed, or the error message if removal failed The command returns results for each database processed even if some fail. Failed databases will have the error message in the Status property instead of “Dropped”.