Anatomy of a Crushing
<p><pre><code>   I lived in constant fear of forgetting a WHERE clause.
</code></pre>
For those in constant fear: <a href="http://dev.mysql.com/doc/refman/5.1/en/mysql-tips.html#safe-updates" rel="nofollow">http://dev.mysql.com/doc/refman/5.1/en/mysql-tips.html#safe-...</a>