Django Orakel db Einstellungen - Django, Orakel, Django-Modelle, Orakel11g, Django-Orakel

Ich möchte nur meine lokale Oracle-DB mit meinem Django-Projekt verbinden, aber meine Datenbankberechtigung funktioniert nicht. Eigentlich kann ich meine Oracle-Datenbank über SQL-Entwickler mit diesen Anmeldeinformationen verbinden:

Ich habe diesen Eintrag in django settings_py so verwendet

DATABASES = {
"default": {
"ENGINE": "django.db.backends.oracle",
"NAME": "INTERNAL",
"USER": "system",
"PASSWORD": "oracle",
"HOST":"localhost/xe",
"PORT":"1521"
}
}

und der Fehler ist:

Traceback (most recent call last):
web_1  |   File "manage.py", line 22, in <module>
web_1  |     execute_from_command_line(sys.argv)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
web_1  |     utility.execute()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/management/__init__.py", line 356, in execute
web_1  |     self.fetch_command(subcommand).run_from_argv(self.argv)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
web_1  |     self.execute(*args, **cmd_options)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
web_1  |     output = self.handle(*args, **options)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/core/management/commands/makemigrations.py", line 110, in handle
web_1  |     loader.check_consistent_history(connection)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/migrations/loader.py", line 282, in check_consistent_history
web_1  |     applied = recorder.applied_migrations()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 65, in applied_migrations
web_1  |     self.ensure_schema()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 52, in ensure_schema
web_1  |     if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()):
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 254, in cursor
web_1  |     return self._cursor()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 229, in _cursor
web_1  |     self.ensure_connection()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
web_1  |     self.connect()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/utils.py", line 94, in __exit__
web_1  |     six.reraise(dj_exc_type, dj_exc_value, traceback)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
web_1  |     raise value.with_traceback(tb)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
web_1  |     self.connect()
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 189, in connect
web_1  |     self.connection = self.get_new_connection(conn_params)
web_1  |   File "/usr/local/lib/python3.6/site-packages/django/db/backends/oracle/base.py", line 212, in get_new_connection
web_1  |     return Database.connect(self._connect_string(), **conn_params)
web_1  | django.db.utils.DatabaseError: ORA-12545: Connect failed because target host or object does not exist

hier ist mein Hörerstatus

 Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date                28-DEC-2017 15:51:21
Uptime                    0 days 2 hr. 8 min. 36 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/e48c7c272f44/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=e48c7c272f44)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=e48c7c272f44)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XE" has 1 instance(s).
Instance "XE", status READY, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
Instance "XE", status READY, has 1 handler(s) for this service...
here its my listener status

Antworten:

Du solltest dich ändern HOST zu localhost" or "127.0.0.1 und SID ist NAME.

DATABASES = {
"default": {
"ENGINE": "django.db.backends.oracle",
"NAME": "xe",
"USER": "system",
"PASSWORD": "oracle",
"HOST":"127.0.0.1",
"PORT":"1521"
}
}

Wenn für zukünftige Verweise Oracle mit dem Dienstnamen anstelle der SID konfiguriert wird, lautet die Konfiguration wie folgt:

DATABASES = {
"default": {
"ENGINE": "django.db.backends.oracle",
"NAME": "127.0.0.1:1521/service.name",
"USER": "system",
"PASSWORD": "oracle",
}
}

Bei der Arbeit mit Oracle in Django sollten Sie außerdem Folgendes berücksichtigen: Wenn Sie eine Verbindung mit der Datenbank für andere Benutzer (Schemata) herstellen, müssen Sie Folgendes festlegen db_table Meta-Option in Django Modellen:

class OracleTable(models.Model):
... fields ...
class Meta:
db_table = ""OTHERUSER"."ORACLETABLE""