一、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 |
一、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)
二、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(my.cnf)中的[mysqld]区段中加上 log-bin-trust-function-creators=1。
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