The difference between Dana and Daca is as follows:

1. Dana usually refers to people who have very high skills and knowledge in a certain profession or field. These people usually have With extremely high professionalism and rich practical experience, big names usually refer to those who have made outstanding achievements in film, television, music, fashion and other fields. They usually have a high fan base and commercial value.

2. Although Da Na and Da Ga are both titles for authoritative people, they refer to different objects and fields. Da Da usually refers to authoritative figures in academic, scientific research, business and other fields, while Dafa usually refers to authoritative figures in the entertainment industry or fashion industry.