Linux python3 - Can't open lib 'SQL Server' - sql-server

Question

I am trying to connect to an Microsoft Azure SQL server database.
This is how i am trying to connect:
conn = pyodbc.connect('DRIVER={SQL Server};SERVER=%s' % (self.config.get("Sql", "DataSource")),
user= self.config.get("Sql", "UserId"),
password=self.config.get("Sql", "Password"),
database=self.config.get("Sql", "Catalog"))
I am getting an error while excuting this line. The error:
pyodbc.Error: ('01000', "[01000] [unixODBC][Driver Manager]Can't open lib 'SQL Server' : file not found (0) (SQLDriverConnect)")
Can't figure why this is happening, Any idea?

Answer 1

replace DRIVER={SQL Server} with DRIVER={/opt/microsoft/msodbcsql17/lib64/libmsodbcsql-17.0.so.1.1}

Answer 2

Update - December 2022
The current installation instructions for the ODBC driver are here
I also recommend you install the ODBC Driver and then try to use pyodbc. I am assuming you are on an Ubuntu 15.04+ machine.
To install the ODBC Driver follow the following instructions:
sudo su
wget https://gallery.technet.microsoft.com/ODBC-Driver-13-for-Ubuntu-b87369f0/file/154097/2/installodbc.sh
sh installodbc.sh
Once you do that, install pyodbc using pip and try the following script:
import pyodbc
server = 'tcp:myserver.database.windows.net'
database = 'mydb'
username = 'myusername'
password = 'mypassword'
cnxn = pyodbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+ password)
cursor = cnxn.cursor()
cursor.execute("SELECT ##version;")
row = cursor.fetchone()
while row:
print row
row = cursor.fetchone()
Let me know how that goes.
Cheers,
Meet

Answer 3

Download Dependencies depends on your platform,
(for other OS Download your Dependencies)
This example for Ubuntu:
# sudo su
curl https://packages.microsoft.com/keys/microsoft.asc | apt-key add -
#Download appropriate package for the OS version
#Choose only ONE of the following, corresponding to your OS version
#Ubuntu 14.04
# curl https://packages.microsoft.com/config/ubuntu/14.04/prod.list > /etc/apt/sources.list.d/mssql-release.list
#Ubuntu 16.04
curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list > /etc/apt/sources.list.d/mssql-release.list
# #Ubuntu 18.04
# curl https://packages.microsoft.com/config/ubuntu/18.04/prod.list > /etc/apt/sources.list.d/mssql-release.list
# #Ubuntu 18.10
# curl https://packages.microsoft.com/config/ubuntu/18.10/prod.list > /etc/apt/sources.list.d/mssql-release.list
# #Ubuntu 19.04
# curl https://packages.microsoft.com/config/ubuntu/19.04/prod.list > /etc/apt/sources.list.d/mssql-release.list
exit
sudo apt-get update
sudo ACCEPT_EULA=Y apt-get install msodbcsql17
# optional: for bcp and sqlcmd
sudo ACCEPT_EULA=Y apt-get install mssql-tools
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bash_profile
echo 'export PATH="$PATH:/opt/mssql-tools/bin"' >> ~/.bashrc
source ~/.bashrc
# optional: for unixODBC development headers
sudo apt-get install unixodbc-dev
and then change,
DRIVER={/opt/microsoft/msodbcsql17/lib64/libmsodbcsql-17.0.so.1.1}
DRIVER={ODBC Driver 17 for SQL Server}

Answer 4

Check those links. It solved my problems which were kind of similar.
Installing FreeTDS
Connecting to SQL-Azure using FreeTDS

Answer 5

If you are using an offline REHL server, then follow the below method to setup connection to Microsoft SQL Server.
Download UNIXODBC & MSSQLTools packages—e.g., unixODBC-2.3.7-1.rh.x86_64.rpm/mssql-tools-17.9.1.1-1.x86_64.rpm—from https://packages.microsoft.com/rhel/, as per your REHL version.
Place downloaded files on the REHL server via winscp or any ssh client.
Install these two files in sequence given below:
yum localinstall unixODBC-2.3.7-1.rh.x86_64.rpm
yum localinstall mssql-tools-17.9.1.1-1.x86_64.rpm)
Go to the installation folder, and copy the path as shown in e.g.,
/opt/microsoft/msodbcsql17/lib64/libmsodbcsql-17.9.so.1.1
Put this path in code:
driverpath = r"/opt/microsoft/msodbcsql17/lib64/libmsodbcsql-17.9.so.1.1"
Your problem will get solved.

Answer 6

I see that this post has an accepted answer but it did not work for me running Python 3.8 on Ubuntu 20.04. I tried several things but I think that ultimately, it was a security issue having to do with the openSSL package. Here are the steps I recommend.
Check the openSSL version. Do this in the Linux console
openssl version
The problematic version was 1.1.1f on my system. If that is the version you have, update it with these commands
wget https://www.openssl.org/source/openssl-1.1.1p.tar.gz -O openssl-1.1.1p.tar.gz
tar -zxvf openssl-1.1.1p.tar.gz
cd openssl-1.1.1p
./config
make
sudo make install
sudo ldconfig
openssl version
Then you have to edit /etc/ssl/openssl.cnf . Put this in the beginning
openssl_conf = default_conf
And this at the end
[ default_conf ]
ssl_conf = ssl_sect
[ssl_sect]
system_default = system_default_sect
[system_default_sect]
MinProtocol = TLSv1.2
CipherString = DEFAULT:#SECLEVEL=0
Like I said, that worked for me. Hopefully it can help someone else too.

Answer 7

Hi I am using this snippet, which searches and return lastest available version of ODBC Driver, or raises an error:
def select_driver():
"""Find least version of: ODBC Driver for SQL Server."""
drv = sorted([drv for drv in pyodbc.drivers() if "ODBC Driver " in drv and " for SQL Server" in drv])
if len(drv) == 0:
raise Exception("No 'ODBC Driver XX for SQL Server' found.")
return drv[-1]
print(select_driver()) # ODBC Driver 17 for SQL Server