MySQL Tutorial/MySQL Utilities/SHOW WARNINGS
SHOW WARNINGS;
mysql>
mysql> SELECT ASIN("foo");
+-------------+
| ASIN("foo") |
+-------------+
| 0 |
+-------------+
1 row in set, 1 warning (0.00 sec)
mysql>
mysql> SHOW WARNINGS;
+---------+------+-----------------------------------------+
| Level | Code | Message |
+---------+------+-----------------------------------------+
| Warning | 1292 | Truncated incorrect DOUBLE value: "foo" |
+---------+------+-----------------------------------------+
1 row in set (0.00 sec)
mysql>