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MySQL创建方法错误:This function has none of DETERMINISTIC, NO SQL

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创建function时

出错信息:

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:

这是我们开启了bin-log, 我们就必须指定我们的函数是否是
1 DETERMINISTIC 不确定的
2 NO SQL 没有SQl语句,当然也不会修改数据
3 READS SQL DATA 只是读取数据,当然也不会修改数据
4 MODIFIES SQL DATA 要修改数据
5 CONTAINS SQL 包含了SQL语句

其中在function里面,只有 DETERMINISTIC, NO SQL 和 READS SQL DATA 被支持。如果我们开启了 bin-log, 我们就必须为我们的function指定一个参数。

解决方法:

SQL code
mysql > show variables like ' %func% ' ;
+ -- -------------------------------+-------+
| Variable_name                    | Value |
+ -- -------------------------------+-------+
| log_bin_trust_function_creators | OFF    |
+ -- -------------------------------+-------+
1 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     |
+ -- -------------------------------+-------+
1 row in set ( 0.00 sec) mysql >
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