数据库|mysql教程
mysql,用户,自定义,函数,实例,部分,问题,解决,方法
数据库-mysql教程
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A、查看创建函数的功能是否开启: mysql show variables like ‘%func%’; +—————————————–+——-+ | Variable_name | Value | +—————————————–+——-+ | log_bin_trust_function_creators | ON |
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A、查看创建函数的功能是否开启:
mysql> show variables like ‘%func%’;
+—————————————–+——-+
| Variable_name | Value |
+—————————————–+——-+
| log_bin_trust_function_creators | ON |
+—————————————–+——-+
1 row in set (0.02 sec)
B、如果Value处值为OFF,,则需将其开启。
mysql> set global log_bin_trust_function_creators=1;
use app02
delimiter //
mysql>DROP FUNCTION IF EXISTS `testhanshu`;
CREATE FUNCTION `testhanshu`(`tustate` int)
RETURNS varchar(2000)
BEGIN
declare oneAddr varchar(200) default ”;
declare allAddr varchar(2000) default ”;
DECLARE done INT DEFAULT FALSE;
declare curl CURSOR for select utruename from tsys_user where ustate = tustate;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
open curl;
REPEAT
FETCH curl INTO oneAddr;
IF NOT done THEN
set oneAddr = CONCAT(oneAddr, ‘;’);
set allAddr = CONCAT(allAddr, oneAddr);
END IF;
UNTIL done END REPEAT;
close curl;
RETURN allAddr;
END;
mysql>select testhanshu(1);
在使用MySql自己定义的函数时,出现错误java.sql.SQLException: 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)
解决办法有三种:
1. 登录MySql客户端,执行: SET GLOBAL log_bin_trust_function_creators = 1;
2.在登录MySQL服务器是,在服务启动时加上 “–log-bin-trust-function-creators=1 ”参数并设置为1。
3.在my.ini(f)中的[mysqld]区段中加上 log-bin-trust-function-creators=1。