If it is zero-based learning data analysis, it is still quite difficult. At present, the training in the market is generally at least three months, which is just the beginning. If you want to master it completely, you need to do it for about two years in combination with the actual business. Participating in data analysis training can be a good stepping stone, but the real improvement lies in actual combat, or training first, and then finding a job to practice.

Big data refers to a data set that takes more than tolerable time to capture, manage and process data with common software tools. In this regard, we must understand the big and accurate meaning of big data. Big data refers to a method that uses all data instead of shortcuts such as random analysis. Big in big data is by no means big in absolute sense. Refers to all the data, sometimes it is not really "big".

If you want to know more about the study time of CDA, it is recommended to visit the CDA Data Certification Center. CDA(Certified Data Analyst), namely "CDA Data Analyst", is a professional authoritative international qualification certification for the whole industry under the background of digital economy and artificial intelligence era. "CDA data analyst" refers to the Internet, finance, retail, consulting, telecommunications, medical care, tourism and other industries.