我们如何组合MySQL表中两列或多列的值？

CONCAT(String1,String2,…,StringN)

mysql> select CONCAT('Ram','is','a','Good','boy') AS Remarks;
+---------------+
| Remarks       |
+---------------+
| Ramisagoodboy |
+---------------+
1 row in set (0.00 sec)

mysql> Select Id, Name, Address, CONCAT(ID,', ',Name,', ', Address)AS 'ID, Name, Address' from Student;
+------+---------+---------+--------------------+
| Id   | Name    | Address | ID, Name, Address  |
+------+---------+---------+--------------------+
| 1    | Gaurav  | Delhi   | 1, Gaurav, Delhi   |
| 2    | Aarav   | Mumbai  | 2, Aarav, Mumbai   |
| 15   | Harshit | Delhi   | 15, Harshit, Delhi |
| 20   | Gaurav  | Jaipur  | 20, Gaurav, Jaipur |
+------+---------+---------+--------------------+
4 rows in set (0.00 sec)