name has-anchor" id="%5B%22each%22%5D"><span class="type-signature"></span>["each"]<span class="signature">(sql, params<span class="signature-attributes">opt</span>, callback, done)</span><span class="type-signature"> &rarr; {<a href="Database.html">Database</a>}</span></h3><div class="description"><p>Execute a sql statement, and call a callback for each row of result. Currently, this method is synchronous, it will not return until the callback has been called on every row of the result. But this might chan