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<h2><a href="https://leetcode.com/problems/duplicate-emails/">182. Duplicate Emails</a></h2><h3>Easy</h3><hr><div class="sql-schema-wrapper__3VBi"><a class="sql-schema-link__3cEg">SQL Schema<svg viewBox="0 0 24 24" width="1em" height="1em" class="icon__1Md2"><path fill-rule="evenodd" d="M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z"></path></svg></a></div><div><p>Table: <code>Person</code></p>
<pre>+-------------+---------+
| Column Name | Type |
+-------------+---------+
| id | int |
| email | varchar |
+-------------+---------+
id is the primary key column for this table.
Each row of this table contains an email. The emails will not contain uppercase letters.
</pre>
<p>&nbsp;</p>
<p>Write an SQL query to report all the duplicate emails.</p>
<p>Return the result table in <strong>any order</strong>.</p>
<p>The query result format is in the following example.</p>
<p>&nbsp;</p>
<p><strong class="example">Example 1:</strong></p>
<pre><strong>Input:</strong>
Person table:
+----+---------+
| id | email |
+----+---------+
| 1 | a@b.com |
| 2 | c@d.com |
| 3 | a@b.com |
+----+---------+
<strong>Output:</strong>
+---------+
| Email |
+---------+
| a@b.com |
+---------+
<strong>Explanation:</strong> a@b.com is repeated two times.
</pre>
</div>