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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 with unique values) for this table.
+Each row of this table contains an email. The emails will not contain uppercase letters.
+</pre>
+
+<p>&nbsp;</p>
+
+<p>Write a solution to report all the duplicate emails. Note that it's guaranteed that the email&nbsp;field is not NULL.</p>
+
+<p>Return the result table in <strong>any order</strong>.</p>
+
+<p>The&nbsp;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  | [email protected] |
+| 2  | [email protected] |
+| 3  | [email protected] |
++----+---------+
+<strong>Output:</strong> 
++---------+
+| Email   |
++---------+
+| [email protected] |
++---------+
+<strong>Explanation:</strong> [email protected] is repeated two times.
+</pre>
+</div>