今天在mysql 5.6上创建函数的时候 发现报错：

　ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)

 原因在于是未开启函数功能：

mysql> show variables like '%func%';  +---------------------------------+-------+  | Variable_name                   | Value |  +---------------------------------+-------+  | log_bin_trust_function_creators | OFF   |  +---------------------------------+-------+  row in set (0.00 sec)    mysql> set global log_bin_trust_function_creators=1;  Query OK, 0 rows affected (0.00 sec)    mysql> show variables like '%func%';  +---------------------------------+-------+  | Variable_name                   | Value |  +---------------------------------+-------+  | log_bin_trust_function_creators | ON    |  +---------------------------------+-------+  row in set (0.00 sec)mysql>

执行以上sql即可开启