oracle11g sql dever链接提示ora-12505，sql plus可以正常连接

Posted 2023-04-12

这是我

listener.ora
# listener.ora Network Configuration File: F:\app\Yy\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = F:\app\Yy\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:F:\app\Yy\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = F:\app\Yy\product\11.2.0\dbhome_1)
(SID_NAME = orcl)

)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = DESKTOP-6NHCI66)(PORT = 1521))
)
)

ADR_BASE_LISTENER = F:\app\Yy

tnsnames.ora
# tnsnames.ora Network Configuration File: F:\app\Yy\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = DESKTOP-6NHCI66)(PORT = 1521))

ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)

ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = DESKTOP-6NHCI66)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

参考技术A 而且回头会企鹅他为前提为前提为前提切图

MySQL创建自定义函数提示：This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its ......

报错场景：在MySQL中创建函数时，报错如下：

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)

错误原因

MySQL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

温馨提示：在自定义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自定义Function指定一个参数。

解决方案

可以通过将变量 log_bin_trust_function_creators 的值设置为“开启”实现。

方式1（临时方案，MySQL服务重启会失效）
可以通过SQL语句设置，SQL语句如下：

1）查询变量值

show variables like 'log_bin_trust_function_creators';

 

2）设置变量值

set global log_bin_trust_function_creators = 1;

show variables like 'log_bin_trust_function_creators';

 

方式2（永久方案，需要重启MySQL服务，配置才能生效）
在 my.cnf 配置文件中添加如下一行配置，然后重启MySQL服务 

log_bin_trust_function_creators = 1