I'm trying to do access the remote MS-SQL database from my OS X machine, with help of pyodbc and python. When I try to execute, it's showing an error like this
Error: ('IM002', '[IM002] [unixODBC][Driver Manager]Data source name not found, and no default driver specified (0) (SQLDriverConnect)')
The code I've written is:
import pyodbc
def createdatabase():
driver = 'SQL Server'
server = '00000000'
db1 = 'Vodafone'
tcon = 'yes'
uname = 'user'
pword = 'pwd'
cnxn = pyodbc.connect(driver='{SQL Server}', host=server,database=db1,trusted_connection=tcon, user=uname, password=pword)
cursor = cnxn.cursor()
This may not be your only problem, but the pyodbc.connect() string needs to be formed with semicolons like this:
DRIVER={FreeTDS};SERVER=yoursqlserver.com;PORT=1433;DATABASE=yourdb;UID=youruser;PWD=yourpass;TDS_Version=7.2;
You'll also have to read up on setting up FreeTDS and unixODBC from a Mac. If you're specifying SQL Server instead of FreeTDS, I'm guessing you haven't set up your configuration in freetds.conf, odbc.ini and odbcinst.ini, which are required for connecting to SQL Server from non-Windows machines.
Related
I am trying to access a microsoft sql server DB trough python but I am receiving Error: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified')
The only info that I have is the db ip, user, password and db name. I used dbevear to set the connection and it's ok but I need to get data with python.
I tried the following:
import pypyodbc
import pandas as pd
cnxn = pypyodbc.connect(
"Server=171.11.111.11;"
"Database=database_name;"
"uid=my_username;pwd=secret")
df = pd.read_sql_query('select * from db.dtable', cnxn)
I am quite new to python and I don't exactly how to connect to the db. Am I missing something here?
This
[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified'
means you failed to specify which ODBC driver you want to use. See eg
import pyodbc
# Some other example server values are
# server = 'localhost\sqlexpress' # for a named instance
# server = 'myserver,port' # to specify an alternate port
server = 'tcp:myserver.database.windows.net'
database = 'mydb'
username = 'myusername'
password = 'mypassword'
cnxn = pyodbc.connect('DRIVER={ODBC Driver 17 for SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+ password)
cursor = cnxn.cursor()
Connecting to SQL Server using pyodbc
I can't connect to MS SQL Server in my Jupyter notebook:
Code:
import pyodbc
pyodbc.drivers()
Output:
[]
Nothing!
Connection string:
db_connection = pyodbc.connect('Driver={ODBC Driver 17 for SQL Server};'
'Server=Server IP;'
'Database=DB_Main;'
'UID=DB_User;'
'PWD=secrets')
Every conceivable driver string I use I get the same basic message:
Error: ('01000', "[01000] [unixODBC][Driver Manager]Can't open lib
'ODBC Driver 17 for SQL Server' : file not found (0)
(SQLDriverConnect)")
Since pyodbc.drivers() isn't showing anything it would seem that the installation is borked.
UPDATE:
I was unable to get the symlink solutions with the INI files to work as suggested here: Can't open lib 'ODBC Driver 13 for SQL Server'? Sym linking issue?
Directly specifying the driver as shown in the answer below is what worked.
I ended up having to directly specify the driver like this:
driver = '/usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so'
ip = "10.10.10.1"
db_connection = pyodbc.connect(
driver = driver,
Server = ip,
Port = "49189",
Database = "project_db",
UID = "db_user",
PWD = "secrets" )
Installed TDS and the ODBC packages on the server then searched for the libtdsodbc.so driver using find. This worked perfectly though there may be other simpler ways.
Try Installing ODBC Drivers (13/17) and your pyodbc.drivers() should return the driver info, you should be able connect then.
I'm trying to connect to an Azure SQL Server instance from a laptop with Jupyter installed. Fairly new at this but having issues which are probably simple to resolve.
I've installed 64bit Python 3.7, Jupyter and AMD64 v17 pyodbc via pip. However when I'm trying to connect via Jupyter I just get either connection or driver issues, not quite sure.
Below is the code I'm trying to run to connect and return a simple top 10 rows query.
import pyodbc
server = 'xxxsqlserver.database.windows.net'
database = 'xxx.dbo.table'
username = 'user'
password = 'password'
driver='{ODBC Driver 17 for SQL Server}'
cnxn = pyodbc.connect('DRIVER='+driver+';SERVER='+server+';PORT=1433;DATABASE='+database+';UID='+username+';PWD='+ password)
cursor = cnxn.cursor()
cursor.execute("SELECT TOP 10 * FROM xxx.dbo.table")
row = cursor.fetchone()
while row:
print (str(row[0]) + " " + str(row[1]))
row = cursor.fetchone()
Below is the error message I get:
InterfaceError Traceback (most recent call
last) in
5 password = 'password'
6 driver='{ODBC Driver 17 for SQL Server}'
----> 7 cnxn = pyodbc.connect('DRIVER='+driver+';SERVER='+server+';PORT=1433;DATABASE='+database+';UID='+username+';PWD='+
password)
8 cursor = cnxn.cursor()
9 cursor.execute("SELECT TOP 10 * FROM xxx.dbo.table")
InterfaceError: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager]
Data source name not found and no default driver specified (0)
(SQLDriverConnect)')
If I change the driver to 13 I get a different error
InterfaceError: ('28000', '[28000] [Microsoft][ODBC Driver 13 for SQL
Server][SQL Server]Login failed for user \'user\'. (18456)
(SQLDriverConnect); [28000] [Microsoft][ODBC Driver 13 for SQL
Server][SQL Server]Cannot open database "xxx.dbo.table" requested by
the login. The login failed. (4060); [28000] [Microsoft][ODBC Driver
13 for SQL Server]Invalid connection string attribute (0); [28000]
[Microsoft][ODBC Driver 13 for SQL Server][SQL Server]Login failed for
user \'user\'. (18456); [28000] [Microsoft][ODBC Driver 13 for SQL
Server][SQL Server]Cannot open database "xxx.dbo.table" requested by
the login. The login failed. (4060); [28000] [Microsoft][ODBC Driver
13 for SQL Server]Invalid connection string attribute (0)')
Feels like the driver isn't doing something quite right or I've got a misalignment somewhere. Note I didn't install any version 13 drivers but do have SSMS installed which put some in, and this connects to the Azure platform just fine.
Any ideas?
Thanks.
Hi there from the looks of things, this may be because your ODBC drivers are not installed properly. It is mostly likely because your are not formatting the string properly. So, here is a comprehensive list of what you need to do:
Install the correct ODBC drivers to connect with SQLServer
This depends on your operating system of course, if you have MacOS, you can go ahead and install it using homebrew like so:
brew tap microsoft/mssql-release https://github.com/Microsoft/homebrew-mssql-release
brew update
brew install msodbcsql17 mssql-tools
If you do not know what homebrew is, please take a look at the homebrew official website. If this is not your operating system, then take a look at OS specific instructions in this guide.
Once you have done this, make sure to follow the instructions at the end of the installation, where they tell you what changes you need to make to your dotfiles in order to get ODBC working properly.
Make sure to get the connection string properly. The connection string is located in the "Connection Strings" section of your SQLServer database, and under ODBC:
Once you have the connection string, use fstrings or the .format() function on a string to replace the section of the string that says Pwd={your_password_here}
This should do the trick. However, if it does not then you need to check whether you have the correct username, password and table. If you are sure that they are correct, then you might want to contact Support, since they might have changed the requirements for drivers to be a specific version for your database.
I've also encountered the same error while connecting to Azure SQL database.
The error disappeared once the driver name was changed from DRIVER={ODBC Driver 17 for SQL Server} to DRIVER={SQL Server}, for example:
import pyodbc
server = '<sql-server-name>.database.windows.net'
database = '<database>'
username = '<username>'
password = '<password>'
driver='{SQL Server}'
cnxn = pyodbc.connect('DRIVER='+driver+';SERVER='+server+';PORT=1433;DATABASE='+database+';UID='+username+';PWD='+ password)
cursor = cnxn.cursor()
cursor.execute("SELECT TOP 10 * FROM dbo.allOrders")
row = cursor.fetchone()
while row:
print (str(row[0]) + " " + str(row[1]))
row = cursor.fetchone()
I have already looked up a lot of some what similar questions on StackOverflow regarding the connectivity of MSSQL with pyodbc, but none of their solutions helped.
I'm tring to connect a MSSQL database which is lying on a VM server, and I'm trying to access it from my local system. Following is the code:
import pyodbc
server = '172.xxx.xxx.xxx,1443'
database = 'sample_db'
username = 'SA'
password = 'xxxxx'
cnxn = pyodbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+password+';Trusted_Connection=yes')
cursor = cnxn.cursor()
cursor.execute("SELECT name FROM sys.databases;")
results = cursor.fetchall()
print(results)
The error I'm getting is as follows:
pyodbc.InterfaceError: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')
If there's any other alternative to pyodbc that works better with MSSQL, please do mention that too.
Any help is appreciated, thanks.
Edit:
Upon #GordThompson suggestion I checked the driver in pyodbc.drivers() and found that my system only has 'SQL Server' driver so I changed the Driver to SQL Server. The present code looks like this:
import pyodbc
server = '172.xxx.xxx.xxx,1443'
database = 'sample_db'
username = 'SA'
password = 'xxxxx'
cnxn = pyodbc.connect('DRIVER={SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+password+';Trusted_Connection=yes')
cursor = cnxn.cursor()
cursor.execute("SELECT name FROM sys.databases;")
results = cursor.fetchall()
print(results)
But now i'm getting a totally different error, still not sure what it is
Error:
pyodbc.OperationalError: ('08001', '[08001] [Microsoft][ODBC SQL Server Driver][DBNETLIB]SQL Server does not exist or access denied. (17) (SQLDriverConnect); [08001] [Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionOpen (Connect()). (53)')
Its important to not mention the Trusted_Connection parameter when logging-in using UID and PWD. Hence, when I removed the Trusted_Connection parameter, it was able to establish the connection successfully.
So the connection string that later worked for me just had these,
cnxn = pyodbc.connect('DRIVER={SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+password)
cursor = cnxn.cursor()
[ Since #GordThompson didn't post it as an answer, I'm positing it here and closing it. Thanks #GordThompson ]
I have been running Python script using my desktop at work that successfully connects to a remote desktop server and outputs data in SQL via pyodbc.connect.
I am looking to migrate this code to a separate remote desktop PC recently installed at work and I get the following error:
InterfaceError: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')
The code I am using is:
cnxn = pyodbc.connect("Driver={SQL Server Native Client 11.0};"
"Server=AUBAMTRAS01-DEV;"
"Database=ForwardTrading;"
"Username=xxxxxxxx;"
"Password=yyyyyyyy;"
"Trusted_Connection=yes;")
cursor = cnxn.cursor()
cursor.execute('SELECT distinct(Commodity) from ForwardCurvesOilAndGas')
for row in cursor:
print('row = %r' % (row,))
Data source name not found and no default driver specified
This means you need to install the SQLDriverConnect driver on your second machine.
SOLVED - Driver required was 'SQL Server' not 'SQL Server Native Client 11.0'