unsigned: 无符号(非负) comment: 注释# 删mysql>drop table student2;## 删除用户mysql>drop user wsh1@'localhost';# 改## 修改表名mysql>show tables;+---+|Tables_in_www|+---+|student3|+---+1rowinset(0.00sec)mysql>alter table student3renamestu;Query OK,0rows affected(0.12sec)mysql>sho...
CASCADE) course_code = models.CharField(max_length=190, blank=True, null=True) course_title = models.CharField(max_length=190, blank=True, null=True) #type = models.CharField(max_length=2, choices=(('PT', 'Part Time'), ('FT', 'Full Time'), ('OL', 'Online'))) type = models...
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