ORA-12505, TNS:监听器当前不知道连接描述符中给定的SID

我已经在我的windows 7 64位操作系统中安装了Oracle 11g Express Edition Release 2，并试图执行JDBC程序，然后我得到了以下错误:

java.sql.SQLException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412)
    at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:531)
    at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221)
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at com.jlcindia.jdbc.JDBCUtil.geOracleConnection(JDBCUtil.java:28)
    at Lab3O.main(Lab3O.java:15)
Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
    at oracle.net.ns.NSProtocol.connect(NSProtocol.java:385)
    at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042)
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301)
    ... 8 more

当前回答

我通过在TNSNAMES中将“SID”更改为“SERVICE_NAME”来修复这个问题。ora文件。

请查看您的DB是否要求SID或SERVICE_NAME。

干杯

2016-05-04 02:01:30

其他回答

我也得到了同样的错误，但当他们尝试所有三个失败。如果以上三点都失败了。尝试LSNRCTL状态，如果您发现服务(在我的情况下是XE)丢失尝试这个

sqlplus /nolog
conn  system
alter system register;  
exit  
lsnrctl status

现在您可以看到服务即使没看到也试试这个

sqlplus /nolog  
conn system  
alter system set local_listener = '(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))' scope = both;  
alter system register;  
exit  
lsnrctl status

这应该可以工作…

2013-10-28 08:41:34

I too faced the same issue. I had installed Oracle Express edition 10g in Windows XP OS using VMware and it was working fine. Since it was very awkward typing SQL queries in the SQL utility provided by 10g and since I was used to working with SQL developer, I installed 32 bit SQL developer in XP and tried connecting to my DB SID "XE". But the connection failed with error-ORA-12505 TNS listener doesn't currently know of SID given in connect descriptor. I was at sea as to how this problem occurred since it was working fine with the SQL utility and I had also created few Informatica mappings using the same. I did browse a lot on this stuff hither thither and applied the suggestions offered to me after pinging the status of "lsnrctl" on public forums but to no avail. However, this morning I tried creating a new connection again, and Voila, it worked with no issues. I am guessing after reading in few posts that sometimes listener listens before the DB connects or something(pardon me for my crude reference as I am a newbie here) but I suggest to just restart the machine and check again.

2013-10-22 02:42:59

我在SQL Workbench中也遇到过类似的问题。

URL:

jdbc: oracle:薄:@111.111.111.111:1111:xe

是行不通的。

URL:

jdbc: oracle:薄:@111.111.111.111:1111:asdb

的工作原理。

这对我的具体情况有帮助。恐怕还有许多其他的原因和不同的解决办法。

2016-08-08 08:03:13

我还没有看到广泛讨论的一种可能性是，在主机上解析主机名本身可能存在问题。如果在/etc/hosts中没有$(hostname)条目，Oracle侦听器会感到困惑，不会出现。

这原来是我的问题，在/etc/hosts中添加主机名和ip地址解决了这个问题。