[UPHPU] discovered ISNULL() for default join values in MySQL

[Wade Preston Shearer]

On Monday, February 22, 2010, at 04:01PM, "Sean Thayne" <sean at exit12.org> wrote:

>You can also use a slick function called coalesce which most db  
>engines support.

I looked coalesce up and don't see how would work in this case. Will you provide an example?