You need to design a student registration database that contains several tables storing academic information. The STUDENTS table stores information about a student. The STUDENT_GRADES table stores information about the student's grades. Both of the tables have a column named STUDENT_ID. The STUDENT_ID column in the STUDENTS table is a primary key. You need to create a foreign key on the STUDENT_ID column of the STUDENT_GRADES table that points to the STUDENT_ID column of the STUDENTS table. Which statement creates the foreign key?()
在注册过程中,Registration Message是通过那个信道传送()。
MS Registration的作用()
A11消息-注册请求应答,返回的代码为(),表示Registration accepted。
当UE从GSM侧重选回TD网络,在RRC连接请求中携带的原因为:registration.