Database-Management-System
August 29, 2024Database-Management-System
August 29, 2024Database-Management-System
| Question 806 |
The primary key is selected from the:
| Composite keys | |
| Determinants | |
| Candidate keys | |
| Foreign keys |
Question 806 Explanation:
● A candidate key is a column or a row of columns in a table which identifies any database record without utilizing any other data.
● Each table can have one or more candidate keys, but one candidate key is unique, and it is called the primary key.
● Each table can have one or more candidate keys, but one candidate key is unique, and it is called the primary key.
Correct Answer: C
Question 806 Explanation:
● A candidate key is a column or a row of columns in a table which identifies any database record without utilizing any other data.
● Each table can have one or more candidate keys, but one candidate key is unique, and it is called the primary key.
● Each table can have one or more candidate keys, but one candidate key is unique, and it is called the primary key.