Fungsi MySQL yang manakah boleh digunakan untuk menambah nilai lajur dengan petikan tunggal?

mysql> Select Name, ID, QUOTE(Subject)AS Subject from Student;
+---------+------+-------------+
| Name    | ID   | Subject     |
+---------+------+-------------+
| Gaurav  | 1    | 'Computers' |
| Aarav   | 2    | 'History'   |
| Harshit | 15   | 'Commerce'  |
| Gaurav  | 20   | 'Computers' |
| Yashraj | 21   | 'Math'      |
+---------+------+-------------+
5 rows in set (0.00 sec)

mysql> Select Name, ID, CONCAT('''',Subject,'''')AS Subject from Student;
+---------+------+-------------+
| Name    | ID   | Subject     |
+---------+------+-------------+
| Gaurav  | 1    | 'Computers' |
| Aarav   | 2    | 'History'   |
| Harshit | 15   | 'Commerce'  |
| Gaurav  | 20   | 'Computers' |
| Yashraj | 21   | 'Math'      |
+---------+------+-------------+
5 rows in set (0.00 sec)