Sales people entertain clients, this doesn't imply they're alcoholics, only that eating/drinking is part of the job. That said there also are many customers that are led by functioning alcoholics and tend to select vendors they can drink with. It varies.
Enterprise software sales can be a lot of fun (I am in sales engineering, not at Oracle) as it is well paid and ultimately about enabling customer successes. But I have to look myself in the mirror at night, and can only sell something I believe in - things like open source, or cloud computing benefits, etc. Oracle database used to be worth believing in maybe 10 years ago: boring but valueable software. But these days the company is such a blight on the industry that it would be hard to work there.
Enterprise software sales can be a lot of fun (I am in sales engineering, not at Oracle) as it is well paid and ultimately about enabling customer successes. But I have to look myself in the mirror at night, and can only sell something I believe in - things like open source, or cloud computing benefits, etc. Oracle database used to be worth believing in maybe 10 years ago: boring but valueable software. But these days the company is such a blight on the industry that it would be hard to work there.