MySQL Tutorial/MySQL Utilities/SHOW WARNINGS
SHOW WARNINGS;
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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></source>