题目内容

为choose表添加外键约束，约束名为choose_student_fk，外键为student_no，连接到 student表的stuednt_no字段，以下命令正确的是_（）

A. alter table choose add constraint choosestudent_fk FOREIGN KEY （student_no）
B. alter table choose add constraint choose_student_fk FOREIGN KEY （student_no） REFERENCES student（stuednt_no）
C. alter table choose add constraint choose_student_fk FOREIGN KEY （student_no） REFERENCES student;
D. alter table choose add constraint choose_student_fk REFERENCES student（stuednt_no）

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