The study time of big data training face-to-face class is about half a year, which is too short to learn all the knowledge. Big data is relatively more suitable for people with a foundation to learn. Learning big data must have a direction. You can learn according to the big data roadmap. When choosing a big data training institution, focus on the reputation of the institution. In addition to word of mouth, we should also look at the faculty, curriculum system and employment information of the institution, and compare several institutions. I hope you can learn as soon as possible.