将Django连接到MSSQL Server 2012时出错

Question

Am getting an error in making migrations for my current django project.

below is the code written in settings.py file to connect to MSSQL Server.

DATABASES = {
'default': {
    'ENGINE':'sql_server.pyodbc',
    'NAME':'JTPROD',
    'HOST':'TZACL5X8H1N2\SQLEXPRESS', ##this is my local machine database
    'USER':'xxx', ##ommitted for the post 
    'PASSWORD':'xxx',##ommitted for tht post
    'PORT':'',

    'OPTIONS':{
        'provider': 'SQLOLEDB', # Have also tried 'SQLCLI11' and 'SQLCLI10'
        'extra_params': 'DataTypeCompatibility=80',
        'driver':'SQL Server',
             },
    },
}

but am getting the following error when I run "python manage.py migrate

Traceback (most recent call last): File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 216, in ensure_connection self.connect() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 194, in connect self.connection = self.get_new_connection(conn_params) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\sql_server\\pyodbc\\base.py", line 307, in get_new_connection timeout=timeout) pyodbc.OperationalError: ('08001', '[08001] [Microsoft][ODBC SQL Server Driver]Neither DSN nor SERVER keyword supplied (0) (SQLDriverConnect); [08001] [Microsoft][ODBC SQL Server Driver]Invalid connection string attribute (0)')

The above exception was the direct cause of the following exception:

Traceback (most recent call last): File "manage.py", line 15, in execute_from_command_line(sys.argv) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\core\\management__init__.py", line 381, in execute_from_command_line utility.execute() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\core\\management__init__.py", line 375, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\core\\management\\base.py", line 316, in run_from_argv self.execute(*args, **cmd_options) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\core\\management\\base.py", line 353, in execute output = self.handle(*args, **options) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\core\\management\\base.py", line 83, in wrapped res = handle_func(*args, **kwarg s) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\core\\management\\commands\\migrate.py", line 82, in handle executor = MigrationExecutor(connection, self.migration_progress_callback) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\migrations\\executor.py", line 18, in init self.loader = MigrationLoader(self.connection) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\migrations\\loader.py", line 49, in init self.build_graph() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\migrations\\loader.py", line 212, in build_graph self.applied_migrations = recorder.applied_migrations() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\migrations\\recorder.py", line 61, in applied_migrations if self.has_table(): File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib \\site-packages\\django\\db\\migrations\\recorder.py", line 44, in has_table return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 255, in cursor return self._cursor() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 232, in _cursor self.ensure_connection() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 216, in ensure_connection self.connect() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\utils.py", line 89, in exit raise dj_exc_value.with_traceback(traceback) from exc_value File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 216, in ensure_connection self.connect() File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\django\\db\\backends\\base\\base.py", line 194, in connect self.connection = self.get_ new_connection(conn_params) File "C:\\Users\\elukamis\\AppData\\Local\\Programs\\Python\\Python37-32\\lib\\site-packages\\sql_server\\pyodbc\\base.py", line 307, in get_new_connection timeout=timeout) django.db.utils.OperationalError: ('08001', '[08001] [Microsoft][ODBC SQL Server Driver]Neither DSN nor SERVER keyword supplied (0) (SQLDriverConnect); [08001] [Microsoft][ODBC SQL Server Driver]Invalid connection string attribute (0)')

Does anyone have an idea on what I might be missing in my configuration ?

Answer 1

If you're still looking for an answer, I'm not sure this will help you, but it helped me when I was getting a similar error. SQL Server Express has TCP/IP connections disabled by default, but they apparently need to be enabled in order to allow a connection like this.

Open SQL Server Configuration Manager, expand 'SQL Server Network Configuration', and click on 'Protocols for SQLEXPRESS'. Assuming the entry for TCP/IP shows as Disabled, right-click that and select Properties. On the 'Protocol' tab, set Enabled to Yes. I also updated the 'IP Addresses' tab by entering '1433' into the TCP Port field of the 'IPAll' section (at the bottom). Then I specified 'PORT':'1433', in the settings.py DATABASES configuration section. I'm not sure that was necessary, but following those steps allowed my app to successfully connect to SQL Server Express.