I was just wondering why certain website don't allow anything other than letter and numbers in the password field.

Is there a security reason or perhaps it's just a limitation of the DB they are using? Thanks for the info.

Edit: It appears that Oracle's database doesn't acknowledge uppercase and lowercase? Is this true? I was told that via PM. Thanks for the information guys, this is really useful stuff.

I wonder why this question has 3 votes to close though. Not enough jQuery and freehand circles?