Joomla Database - How to use LIMIT in getQuery?

Question

I want to build the below query using joomla inbuilt database class.

SELECT * 
FROM table_name
ORDER BY id DESC
LIMIT 1

This is the query I hav

Answer 1

This should work as well:

$query->setLimit(1);

Documentation: http://api.joomla.org/cms-3/classes/JDatabaseQueryLimitable.html