Emp-id | Fname | Lname | |
MK101 | Vikas | Kumar | arvind@mkworld.com |
MK102 | Bhanu | Sharma | Bhanu@mkworld.com |
MK103 | Vinay | Kapoor | vinay@mkworld.com |
MK104 | Nitin | Arya | Nitin@mkworld.com |
A)
Primary key - Fname
Unique keys - Emp-id, Fname
B)
Primary key - Emp-id
Unique keys - Emp-id, Email
C)
Primary key - Email
Unique keys - Fname, Lname
D)
Primary key - Fname
Unique keys - Emp-id, Email
Correct Answer: B
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