How can we combine the values of two or more columns of MySQL table?

For combining the values of two or more columns of MySQL table, we can use CONCAT() string function. Basically, MySQL CONCAT() function is used to combine two or more strings.

Syntax

CONCAT(String1,String2,…,StringN)

Here, the arguments of CONCAT functions are the strings that need to be combined.

Example

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

Similarly, we can use CONCAT() function to combine the values of two or more columns. For example, suppose we have a table named ‘Student’ and we want the name and address of the student collectively in one column then the following query can be written −

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)