Oracle XE 和 DBeaver:ORA-12514，TNS:listener 当前不知道连接描述符中请求的服务

Question

我需要通过 DBeaver 7.0 连接到 Oracle XE 18.0.0，但由于错误而失败侦听器拒绝连接并出现以下错误： ORA-12514，TNS：侦听器当前不知道连接描述符中请求的服务使用 SQLPlus 与 Oracle 的连接没有任何问题。 我真的很感激任何有助于解决这个问题的想法。

tnsnames.ora

XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.Y.YY)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)

LISTENER_XE =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.Y.YY)(PORT = 1521))


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

听众.ora

DEFAULT_SERVICE_LISTENER = XE
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:appYYYproduct18.0.0dbhomeXE)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:C:appYYYproduct18.0.0dbhomeXEbinoraclr18.dll")
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.Y.YY)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)

LSNRCTL 状态

LSNRCTL for 64-bit Windows: Version 18.0.0.0.0 - Production on 20-JUN-2020 17:03:44
Copyright (c) 1991, 2018, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.Y.2YY)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 18.0.0.0.0 - Production
Start Date                20-JUN-2020 16:09:45
Uptime                    0 days 0 hr. 54 min. 3 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   C:appYYYproduct18.0.0dbhomeXEnetworkadminlistener.ora
Listener Log File         C:appYYYproduct18.0.0diagtnslsnrYYYPClisteneralertlog.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.Y.YY)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\.pipeEXTPROC1521ipc)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

global_name

SQL> select * from global_name;
GLOBAL_NAME
--------------------------------
XE

service_name

SQL> select value from v$parameter where name='service_names';
VALUE
----------------------------------------------------------------
XE

Answer 1

我的问题是选择了"服务名称"而不是"SID"，切换到 SID 解决了这个问题。(我在连接中指定了数据库名称(

Answer 2

我通过连接系统而不是系统来解决我的问题。所以

conn system/[password]@localhost:1521 as sysdba;

Answer 3

我不知道在很高的水平上，但是如果您正在使用本地数据库，则可以尝试重新启动计算机。它将解决问题。

这些引用可能很有用。

1. t_ora_12514_tns_listener_does_not_currently_know_service_requested
2. forums.toadworld.com/t/ora-12514-tns-listener-does-not-currently-know-of-service-requested-in-connect-descriptor
3. dbeaver.io/forum/viewtopic.php?f=2&t=658