Purge by deleting all records older than 180 days from the current date in SQL Server
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<p>In SQL Server 2008 R2 I have a table (database size is 450 GB) with over a billion rows, which I'd like to purge by deleting all records older than 180 days counting from the current date. Any help here would be appreciated! </p>

<p>I'm using the following query :</p>

<pre><code>DELETE FROM table name 
WHERE column name &lt; '2015-01-01' 
</code></pre>

<p>But it is taking too much time. Is there any maintenance plan or any query so that I can delete the data fast? </p>