Database operation and maintenance, namely database administrator, DBA for short. This profession was very promising fifteen years ago. The salary return is very high, and during that time, many very famous DBAs were born. For example, Feng (once the head of the Alipay DBA team) (here, only his fame, technology and personality are not discussed. No matter what you think of him, there is no denying that he has a certain popularity in the technical circle.

But now, DBA is not a very good job. Overtime, working hours and salary returns are not high, which is the current situation of DBA occupation. But if you can develop, like Python. Python+DBA can be an operation and maintenance automation engineer, which is very promising. If you consider DBA, I suggest developing in this direction. 35 years old is fine.

Database, it is suggested that Oracle and MySQL are two major databases. At the same time, master the management and operation of these two databases. Of course, you can also choose other databases. These two databases are relatively mainstream.