This packet signals that an error occurred.

It contains a SQL state value if CLIENT_PROTOCOL_41 is enabled.

Error texts cannot exceed MYSQL_ERRMSG_SIZE

The Payload of an ERR Packet
Type	Name	Description
int<1>	header	`0xFF` ERR packet header
int<2>	error_code	error-code
if capabilities & CLIENT_PROTOCOL_41 {
string[1]	sql_state_marker	# marker of the SQL state
string[5]	sql_state	SQL state
}
string<EOF>	error_message	human readable error message

Example:

17 00 00 01 ff 48 04 23 48 59 30 30 30 4e 6f 20

74 61 62 6c 65 73 20 75 73 65 64

.....H.#HY000No

tables used