How to calculate age from date of birth in MySQL?

We can calculate the age from date of birth as follows -

mysql> SET @dob = '1984-01-17';
Query OK, 0 rows affected (0.00 sec)

The above query will pass the value "1984-01-17" in the "dob" variable ". Then after applying the formula in the query below we can get the age in years.

mysql> Select Date_format( From_Days( To_Days(Curdate()) - To_Days(@dob) ), '%Y' ) + 0 AS ‘Age in years;
+---------------+
| ‘Age in years’|
+---------------+
|   33          |
+---------------+
1 row in set (0.00 sec)

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