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                    <h1 id="remove-dbadbbackuprestorehistory">Remove-DbaDbBackupRestoreHistory</h1>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Author</strong></td>
<td>IJeb Reitsma</td>
</tr>
<tr>
<td><strong>Availability</strong></td>
<td>Windows, Linux, macOS</td>
</tr>
</tbody>
</table>
<p> </p>
<p>Want to see the source code for this command? Check out <a href="https://github.com/dataplat/dbatools/blob/master/public/Remove-DbaDbBackupRestoreHistory.ps1">Remove-DbaDbBackupRestoreHistory</a> on GitHub.
<br>
Want to see the Bill Of Health for this command? Check out <a href="https://dataplat.github.io/boh#Remove-DbaDbBackupRestoreHistory">Remove-DbaDbBackupRestoreHistory</a>.</p>
<h2 id="synopsis">Synopsis</h2>
<p>Reduces the size of the backup and restore history tables by deleting old entries for backup sets.</p>
<h2 id="description">Description</h2>
<p>Reduces the size of the backup and restore history tables by deleting the entries for backup sets.</p>
<p>Can be used at server level, in this case a retention period -KeepDays can be set (default is 30 days).<br />
Can also be used at database level, in this case the complete history for the database(s) is deleted.</p>
<p>The backup and restore history tables reside in the msdb database.</p>
<p>To periodically remove old data from backup and restore history tables it is recommended to schedule the agent job sp_delete_backuphistory from the<br />
SQL Server Maintenance Solution created by Ola Hallengren (<a href="https://ola.hallengren.com">https://ola.hallengren.com</a>).</p>
<h2 id="syntax">Syntax</h2>
<pre><code>Remove-DbaDbBackupRestoreHistory
    [[-SqlInstance] &lt;DbaInstanceParameter[]&gt;]
    [[-SqlCredential] &lt;PSCredential&gt;]
    [[-KeepDays] &lt;Int32&gt;]
    [[-Database] &lt;String[]&gt;]
    [[-InputObject] &lt;Database[]&gt;]
    [-EnableException]
    [-WhatIf]
    [-Confirm]
    [&lt;CommonParameters&gt;]

</code></pre>
<p> </p>
<h2 id="examples">Examples</h2>
<p> </p>
<h5 id="example-1">Example:  1</h5>
<pre><code>PS C:\&gt; Remove-DbaDbBackupRestoreHistory -SqlInstance sql2016
</code></pre>
<p>Prompts for confirmation then deletes backup and restore history on SQL Server sql2016 older than 30 days (default period)<br></p>
<h5 id="example-2">Example:  2</h5>
<pre><code>PS C:\&gt; Remove-DbaDbBackupRestoreHistory -SqlInstance sql2016 -KeepDays 100 -Confirm:$false
</code></pre>
<p>Remove backup and restore history on SQL Server sql2016 older than 100 days. Does not prompt for confirmation.<br></p>
<h5 id="example-3">Example:  3</h5>
<pre><code>PS C:\&gt; Remove-DbaDbBackupRestoreHistory -SqlInstance sql2016 -Database db1
</code></pre>
<p>Prompts for confirmation then deletes all backup and restore history for database db1 on SQL Server sql2016<br></p>
<h5 id="example-4">Example:  4</h5>
<pre><code>PS C:\&gt; Get-DbaDatabase -SqlInstance sql2016 | Remove-DbaDbBackupRestoreHistory -WhatIf
</code></pre>
<p>Remove complete backup and restore history for all databases on SQL Server sql2016<br></p>
<h3 id="optional-parameters">Optional Parameters</h3>
<h5 id="sqlinstance">-SqlInstance</h5>
<p>The target SQL Server instance or instances. You must have sysadmin access and server version must be SQL Server version 2000 or higher.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="sqlcredential">-SqlCredential</h5>
<p>Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).<br />
Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.<br />
For MFA support, please use Connect-DbaInstance.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="keepdays">-KeepDays</h5>
<p>The number of days of history to keep. Defaults to 30 days.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>0</td>
</tr>
</tbody>
</table>
<h5 id="database">-Database</h5>
<p>The database(s) to process. If unspecified, all databases will be processed.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="inputobject">-InputObject</h5>
<p>Enables piped input from Get-DbaDatabase<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>true (ByValue)</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="enableexception">-EnableException</h5>
<p>By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.<br />
This avoids overwhelming you with &quot;sea of red&quot; exceptions, but is inconvenient because it basically disables advanced scripting.<br />
Using this switch turns this &quot;nice by default&quot; feature off and enables you to catch exceptions with your own try/catch.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<h5 id="whatif">-WhatIf</h5>
<p>Shows what would happen if the command were to run. No actions are actually performed.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td>wi</td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="confirm">-Confirm</h5>
<p>Prompts you for confirmation before executing any changing operations within the command.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td>cf</td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<p> </p>

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