19.2.8.1. DECLARE Conditions
DECLARE condition_name CONDITION FOR condition_value
condition_value:
SQLSTATE [VALUE] sqlstate_value
| mysql_error_code
This statement specifies conditions that need specific
handling. It associates a name with a specified error
condition. The name can subsequently be used in a
DECLARE HANDLER statement. See
Section 19.2.8.2, “DECLARE Handlers”.
A condition_value can be an
SQLSTATE value or a MySQL error code.