sys view equivalent of INFORMATION_SCHEMA query
<p>I wanted to get a list of all cascading deletes in my database, so
I used the <code>INFORMATION_SCHEMA</code> view:</p>

<pre><code>SELECT *
FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS
WHERE DELETE_RULE = 'CASCADE'
</code></pre>

<p>What is the equivalent of this query using the <code>sys</code> system views?</p>