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leetcode/problem/delete-duplicate-emails.html
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@@ -7,20 +7,24 @@
| id | int |
| email | varchar |
+-------------+---------+
id is the primary key column for this table.
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 an SQL query to <strong>delete</strong> all the duplicate emails, keeping only one unique email with the smallest <code>id</code>. Note that you are supposed to write a <code>DELETE</code> statement and not a <code>SELECT</code> one.</p>
<p>Write a solution to<strong> delete</strong> all duplicate emails, keeping only one unique email with the smallest <code>id</code>.</p>
<p>Return the result table in <strong>any order</strong>.</p>
<p>For SQL users, please note that you are supposed to write a <code>DELETE</code> statement and not a <code>SELECT</code> one.</p>
<p>The query result format is in the following example.</p>
<p>For Pandas users, please note that you are supposed to modify <code>Person</code> in place.</p>
<p>After running your script, the answer shown is the <code>Person</code> table. The driver will first compile and run your piece of code and then show the <code>Person</code> table. The final order of the <code>Person</code> table <strong>does not matter</strong>.</p>
<p>The result format is in the following example.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong>