How to set country code to column values with phone numbers in MySQL?

To set country code to phone numbers would mean to concatenate. You can use CONCAT() for this.

Let us first create a table −

mysql> create table DemoTable769 (MobileNumber varchar(100));
Query OK, 0 rows affected (0.54 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable769 values('8799432434');
Query OK, 1 row affected (0.24 sec)
mysql> insert into DemoTable769 values('9899996778');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable769 values('7890908989');
Query OK, 1 row affected (0.21 sec)
mysql> insert into DemoTable769 values('9090898987');
Query OK, 1 row affected (0.20 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable769;

This will produce the following output -

+--------------+
| MobileNumber |
+--------------+
| 8799432434   |
| 9899996778   |
| 7890908989   |
| 9090898987   |
+--------------+
4 rows in set (0.00 sec)

Following is the query to set country code to column values with phone numbers in MySQL −

mysql> update DemoTable769
   set MobileNumber=concat('+91',MobileNumber);
Query OK, 4 rows affected (0.20 sec)
Rows matched: 4 Changed: 4 Warnings: 0

Let us check the description of the view −

mysql> select *from DemoTable769;

This will produce the following output -

+---------------+
| MobileNumber  |
+---------------+
| +918799432434 |
| +919899996778 |
| +917890908989 |
| +919090898987 |
+---------------+
4 rows in set (0.00 sec)