一、创建函数报错
1、在MySql中创建自定义函数报错信息如下:
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。
在MySQL中创建函数时出现这种错误的解决方法:
set global log_bin_trust_function_creators=TRUE;
二、测试简单函数
mysql> create function hello(s char(20))
-> returns char(50)
-> return concat('Hello',s,'!');
Query OK, 0 rows affected (0.00 sec)
mysql> select hello('world');
+----------------+
| hello('world') |
+----------------+
| Helloworld! |
+----------------+
1 row in set (0.00 sec)
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的exchange不能执行存储过程解决办法
GRANT EXECUTE ON ichson_lore_source.* TO 'exchange'@'%'; GRANT SELECT ON `mysql`.`proc` TO 'exchange'@'%';