多选题

There is one table MeetingAttendeeID ...

Question

There is one table MeetingAttendeeID with Primary key (MeetingID, AttendeeID) and also use below procedure (Oracle PL/SQL) to do something.

What’s correct description for this procedure purpose? (单选)

A. Create Meeting Attendee ID

B. Create Meeting Attendee ID and Block Concurrence

C. Create Meeting Attendee ID, Block Concurrence and output meeting Attendee ID

D. Create Meeting Attendee ID, Block Concurrence and Solve meeting Attendee ID Confliction