Is there a lower and upper limit for cardinality in the MySQL CONV() function? What happens if the base provided in the CONV() function exceeds the limit?

The base must be greater than 2 and less than 36, that is, the lower limit of the base is 2 and the upper limit is 36. It works for from_base and to_base values. If the value we provide exceeds the limit of the base, then MySQL will return NULL as output. The following example will demonstrate it -

Example

mysql> Select CONV(10,10,38);

+----------------+
| CONV(10,10,38) |
+----------------+
| NULL           |
+----------------+

1 row in set (0.00 sec)

mysql> Select CONV(10,72,2);

+---------------+
| CONV(10,72,2) |
+---------------+
| NULL          |
+---------------+

1 row in set (0.00 sec)

mysql> Select CONV(10,10,1);

+---------------+
| CONV(10,10,1) |
+---------------+
| NULL          |
+---------------+

1 row in set (0.00 sec)

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