I must request if there's a potential method to choose all rows from the table in which the content of the column (varchar(255)) could have figures others than standard british (a-zA-Z) or figures from different languages like Greek, French.

For instance when the table consists of the next data:

-- ID, Address --
|  1, "Test1"   | 
|  2, "Tåst2"   |
|  3, "Test1"   |

I must get just the second row (2, "Tåst2")

I attempted to make use of regular expression doing the next:

SELECT * FROM contact_info WHERE address NOT REGEXP '[a-zA-Z]';

But no luck!

Any help could be appreciated!

Match the entire text

SELECT * 
FROM contact_info 
WHERE address NOT REGEXP '^[a-zA-Z0-9]*$';