Repair-DbaDbOrphanUser

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

Synopsis

Finds orphan users with existing login and remaps them.

Description

An orphan user is defined by a user that does not have a matching login (Login property = "").

If the matching login exists it must be:
Enabled
Not a system object
Not locked
Have the same name that user

You can drop users that does not have their matching login by specifying the parameter -RemoveNotExisting.

Syntax

Repair-DbaDbOrphanUser
    [-SqlInstance] <DbaInstanceParameter[]>
    [[-SqlCredential] <PSCredential>]
    [[-Database] <Object[]>]
    [[-ExcludeDatabase] <Object[]>]
    [[-Users] <Object[]>]
    [-RemoveNotExisting]
    [-Force]
    [-EnableException]
    [-WhatIf]
    [-Confirm]
    [<CommonParameters>]

Examples

Example: 1

PS C:\> Repair-DbaDbOrphanUser -SqlInstance sql2005

Finds and repairs all orphan users of all databases present on server 'sql2005'

Example: 2

PS C:\> Repair-DbaDbOrphanUser -SqlInstance sqlserver2014a -SqlCredential $cred

Finds and repair all orphan users in all databases present on server 'sqlserver2014a'. SQL credentials are used to authenticate to the server.

Example: 3

PS C:\> Repair-DbaDbOrphanUser -SqlInstance sqlserver2014a -Database db1, db2

Finds and repairs all orphan users in both db1 and db2 databases.

Example: 4

PS C:\> Repair-DbaDbOrphanUser -SqlInstance sqlserver2014a -Database db1 -Users OrphanUser

Finds and repairs user 'OrphanUser' in 'db1' database.

Example: 5

PS C:\> Repair-DbaDbOrphanUser -SqlInstance sqlserver2014a -Users OrphanUser

Finds and repairs user 'OrphanUser' on all databases

Example: 6

PS C:\> Repair-DbaDbOrphanUser -SqlInstance sqlserver2014a -RemoveNotExisting

Finds all orphan users of all databases present on server 'sqlserver2014a'. Removes all users that do not have matching Logins.

Required Parameters

-SqlInstance

The target SQL Server instance or instances.

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.

-Database

Specifies the database(s) to process. Options for this list are auto-populated from the server. If unspecified, all databases will be processed.

-ExcludeDatabase

Specifies the database(s) to exclude from processing. Options for this list are auto-populated from the server

-Users

Specifies the list of usernames to repair.

-RemoveNotExisting

If this switch is enabled, all users that do not have a matching login will be dropped from the database.

-Force

Forces alter schema to dbo owner so users can be dropped.

-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

If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run.

-Confirm

If this switch is enabled, you will be prompted for confirmation before executing any operations that change state.