Development of Music Online Teaching System Based on Distributed Database Search Technology

Table 1

User table.

Field name	Field type	Illustrate	Constraint
User_id	Integer	Unique identifier	Primary key, cannot be empty
Name	Varchar	Username	Cannot be empty
User_gender	Integer	User’s gender	Cannot be empty
Phone_number	Varchar	Phone number	Cannot be empty
Weixin_id	Varchar	User WeChat id	—
qq_id	Varchar	User QQ id	—
Password	Varchar	User password	Cannot be empty