Difference between these two queries ?

Hi,
I have a doubt about JOINS.

What is the difference between:

1. SELECT b.* from banners b, banners_users bu where b.id = bu.bid and
bu.uid = 5;

2. SELECT b.* from banners b INNER JOIN banners_users bu ON b.id =
bu.bid AND bu.uid = 5;

What is the first type of join called ?

and is it possible that they have different execution times ?

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Nilesh Govindarajan
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