A: Database table design is a difficult point.Many things are designed by graduate students and undergraduates of Peking University in Tsinghua, but many fields are problematic and lack of fields is a common occurrence.We have to complete this aspect according to the actual development situation. Complex SQL statements, business logic associated with 5 or 6 tables, multilevel data dictionary, international dictionary and numbered table are a large part of the workload. More than 700 tables are also spectacular. I think this is also one of the main reasons for comparing software engineers to migrant workers.In fact, I think, let me design should be more scientific than they design.However, it is still the same sentence. I have just started to work and my academic qualifications are killing me.