I've followed the various instructions for connecting to an ODBC data source using pyodbc via FreeTDS. I have most of it set up correctly, as I can connect to my data sources using either isql or tsql. However, when I try to access these same data sources with pyodbc, I get the error:
InterfaceError: ('IM002', '[IM002] [unixODBC][Driver Manager]Data source name not found and no default driver specified (0) (SQLDriverConnect)')
My freetds.conf file contains the following:
[MY_DATA_SOURCE]
host = MY_DATA_SOURCE_ADDRESS
port = 1433
tds version = 8.0
My odbcinst.ini file contains this:
[FreeTDS]
Description = ODBC for FreeTDS
Driver = /opt/local/lib/libtdsodbc.so
Setup = /opt/local/lib/libtdsodbc.so
FileUsage = 1
while my odbc.ini file has:
[DATA_SOURCE]
Driver=FreeTDS
Description=My Data Source
Trace=No
Servername=MY_DATA_SOURCE
where in each case the ALL CAPS are the actual names/addresses that I am using.
I am then using the following in Python:
cnxn = pyodbc.connect("DSN=DATA_SOURCE")
Am I overlooking something obvious? I have used MacPorts to install unixodbc and freetds.
Related
I have been working for two weeks in the installation of Superset (from Airbnb) for data visualization on a virtual RHEL machine and the connection with a SQL Server database. But I still cannot connect to this database because of a problem of driver I guess. I tried many things and I would like to know if you have a solution, about a driver I need, about modifications in my configuration etc...
Someone told me about jTDS driver. Maybe I need something like this but for python. If you have any idea, here is what I already did.
1) I tried to connect to the database from Superset :
SQL Alchemy URI : mssql://user:password#fr0-iacls-190.eu.company.corp:10001/dbname
ERROR : {"error": "Connection failed!\n\n
The error message returned was:\n(pyodbc.Error) ('IM002', '[IM002] [unixODBC][DriverManager]
Data source name not found, and no default driver specidied (0) (SQLDriverConnect)')"}
2) I tried almost the same with mssql+pymssql :
SQL Alchemy URI : mssql+pymssql://user:password#fr0-iacls-190.eu.company.corp:10001/dbname
ERROR:{"error":"Connection failed!\n\n
The error message returned was:\n(pymssql.OperationalError) (18456, 'DB-Lib error message 20018,
severity 14:\\nGeneral SQL Server error: Check messages from the SQL Server\\n
DB-Lib error message 20002, severity 9:\\n Adaptive Server connection failed (fr0-iacls-190.eu.company.corp:10001)\\n')"}
3) I tried to connect to the database from my terminal on virtual RHEL machine :
# tsql -S fr0-iacls-190.eu.company.corp -U user
Password:
locale is "en_US.UTF-8"
locale charset is "UTF-8"
using default charset "UTF-8"
20^C
Here I have a timer that increase the number every second. I stopped the example after 20 seconds.
4) Finally I tried a python script like this one :
import pyodbc
cnxn = pyodbc.connect('DRIVER={SQL Server};SERVER=fr0-iacls-190.eu.company.corp;DATABASE=dbname;UID=;PWD=password')
The empty UID is a tip used in another StackOverflow post.
# python connect.py
Traceback (most recent call last):
File "connect.py", line 2, in <module>
cnxn = pyodbc.connect('DRIVER={SQL Server};SERVER=fr0-iacls-190.eu.company.corp;DATABASE=dbname;UID=;PWD=password')
pyodbc.Error: ('01000', "[01000] [unixODBC][Driver Manager]Can't open lib 'SQL Server' : file not found (0) (SQLDriverConnect)")
To finish, I read about two files, odbc.ini and odbcinst.ini but I don't know if they are in the good directory (/etc). I am not working on root (~) but in in the parent directory of root (cd ~/..)...
Here are the two files if necessary :
odbc.ini
;
; odbc.ini
;
[ODBC Data Sources]
JDBC = Sybase JDBC Server
[JDBC]
Driver = /usr/local/lib/libtdsodbc.so
Description = Sybase JDBC Server
Trace = No
Servername = JDBC
Database = pubs2
UID = guest
[Default]
Driver = /usr/local/lib/libtdsodbc.so
odbcinst.ini
[PostgreSQL]
Description=ODBC for PostgreSQL
Driver=/usr/lib/psqlodbcw.so
Setup=/usr/lib/libodbcpsqlS.so
Driver64=/usr/lib64/psqlodbcw.so
Setup64=/usr/lib64/libodbcpsqlS.so
FileUsage=1
[MySQL]
Description=ODBC for MySQL
Driver=/usr/lib/libmyodbc5.so
Setup=/usr/lib/libodbcmyS.so
Driver64=/usr/lib64/libmyodbc5.so
Setup64=/usr/lib64/libodbcmyS.so
FileUsage=1
[MSSQLTest]
Driver = ODBC Driver 13 for SQL Server
Server = [http:]fr0-iacls-190.eu.company.corp[,10001]
#
# Note:
# Port is not a valid keyword in the ~/.odbc.ini file
# for the Microsoft ODBC driver on Linux
#
[ODBC Driver 13 for SQL Server]
Description=Microsoft ODBC Driver 13 for SQL Server
Driver=/opt/microsoft/msodbcsql/lib64/libmsodbcsql-13.1.so.4.0
UsageCount=1
Many thanks for your time and your help.
A few things to try:
Correct the python connection string:
You have the aliased the MS SQL driver in /etc/odbcinst.ini to [ODBC Driver 13 for SQL Server] therefore in your python code you should be using that, rather than SQL Server:
import pyodbc
cnxn = pyodbc.connect('Driver={ODBC Driver 13 for SQL Server};Server=fr0-iacls-190.eu.company.corp;Port=10001;Database=dbname;UID=user;PWD=password')
replacing user and password with correct credentials.
Use isql to test a connection using odbc.ini:
Generally you use the odbcinst.ini to setup driver configuration, and then odbc.ini for database instances (referencing the drivers), thus a valid entry to your odbc.ini could be:
[friendly_database_name]
Description=A description to help you remember what this connection is for
Server=fr0-iacls-190.eu.company.corp
Port=10001
Database=dbname
UID=user
PWD=password
If you have isql installed (comes as part of the unixODBC package if not), then you can test with:
$ isql -3 -v friendly_database_name
Ensure there's not a firewall blocking you:
I'm not sure why the tsql command is failing for you, it should return the 1> prompt. Ensure that you can establish a telnet connection to the database server:
$ telnet fr0-iacls-190.eu.company.corp 10001
which should give you something like:
Trying 12.34.56.78...
Connected to fr0-iacls-190.eu.company.corp.
Escape character is '^]'
and then to ctrl + ] and type quit to exit (or do ctrl + c to cancel if the telnet test fails).
My question is related to
Trying to connect to an ODBC server using RODBC in ubuntu
and
How to specify include and lib directories when locally installing RODBC?
but I could not find suitable answers to my case.
I want to connect to a SQL Server database on a remote server using RODBC.
I have installed unixodbc and freetds, and can connect in the terminal with T-SQL, so the connection exists.
But when trying to connect in R with (all sensitive info have been replaced by ***):
odbcConnect(dsn="TESTSQL", uid=***, pwd=***)
I get:
Warning messages:
1: In RODBC::odbcDriverConnect("DSN=TESTSQL;UID=***;PWD=***") : [RODBC] ERROR: state 01000, code 0, message [unixODBC][Driver Manager]Can't open lib '/usr/local/Cellar/freetds/0.95.18/lib/libtdsodbc.so' : file not found
2: In RODBC::odbcDriverConnect("DSN=TESTSQL;UID=***;PWD=***") :
ODBC connection failed
The odbc.ini file being:
[ODBC Data Sources]
TESTSQL = Test database
[TESTSQL]
Driver = MSSQL
Servername = ***.**.**.**
Port = **
Database = ****
TDS_Version = 8.0
I had installed the latest version of freetds, that is 1.00.27, I am hence surprised that this library libtdsodbc.so is missing.
Is that normal? Would you recommend to install the version 0.95.18 or rather stay with 1.00.27 and look for that missing library?
I had to remove freetds:
brew remove freetds
then resintalling it, specifying --with-unixodbc to have the libtsdodbc.so created:
brew install freetds --with-unixodbc
In the odbc.ini, I had then to take care not to confuse "Server" and "Servername", and link the driver to the libtdsodbc.so, so that my odbc.ini looks like:
[ODBC Data Sources]
TESTSQL = Test database
[TESTSQL]
Driver = /usr/local/lib/libtdsodbc.so
Server = ***.**.**.**
Port = **
Database = ****
TDS_Version = 8.0
and connected using the RODBC package
ch1 <- odbcConnect(dsn="TESTSQL", uid=***, pwd=***)
> ch1
RODBC Connection 5
Details:
case=nochange
DSN=TESTSQL
UID=****
PWD=******
it works!
Further detailed informations from this page
http://eriqande.github.io/2014/12/19/setting-up-rodbc.html
I'm trying to connect to a SQL Server Express database using SQLALchemy and pyodbc, but I'm continuously getting the error:
(pyodbc.Error) ('IM002', '[IM002] [unixODBC][Driver Manager]Data
source name not found, and no default driver specified (0)
(SQLDriverConnect)')
And I really don't understand if my engine url is wrong or what else.
My scenario is the following:
I'm on a Mac
I have a docker container (based on a Debian image with unixodbc and unixodbc-dev) in which my python app tries to connect to...
a virtualbox virtual machine running windows 8 with SQL express 2014...
I configured a user for the SQL express, with SQL Server authentication:
user: ar_user
password: ar_psw
...then:
I configured TCP ports as 1433 and disabled dynamic ports (SQL Server Configuration Manager > Network Configurations > Protocols).
I turned off Windows Firewall.
I used an Host-only adapter for the VM running windows8
now...
The VM is accessible from the host (my mac), since a:
ping -c 3 vm-ip
succeed!
But although I tried every possible permutation of user, password, ip, server name and port:
'mssql+pyodbc://ar_user:ar_psw#vm-ip/master'
'mssql+pyodbc://ar_user:ar_psw#vm-ip:1433/master'
'mssql+pyodbc://IE10WIN8\\SQLEXPRESS'
'mssql+pyodbc://ar_user:ar_psw#IE10WIN8\\SQLEXPRESS'
'mssql+pyodbc://ar_user:ar_psw#IE10WIN8\\SQLEXPRESS:1433'
'mssql+pyodbc://ar_user:ar_psw#IE10WIN8\\SQLEXPRESS:1433/master'
...and many more!
I always get the "datasource not found error".
What should I do?
ps: the vm is pingable even in the docker container!
UPDATE (solved but not 100%):
I solved in this way:
I configured FreeTDS driver using /etc/odbcinst.ini in this way:
[FreeTDS]
Description = TDS driver (Sybase/MS SQL)
Driver = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
Setup = /usr/lib/x86_64-linux-gnu/odbc/libtdsS.so
client charset = UTF-8
and in /etc/freetds/freetds.conf:
[global]
tds version = 7.3
client charset = UTF-8
Then I created the engine using the following string:
'mssql+pyodbc://my_user:my_psw#machine_ip:1433/my_db?driver=FreeTDS'
It seems to work properly, but I get this warning:
SAWarning: Unrecognized server version info '95.12.255'. Version
specific behaviors may not function properly. If using ODBC with
FreeTDS, ensure TDS_VERSION 7.0 through 7.3, not 4.2, is configured in
the FreeTDS configuration.
I also defined the TDS version using environment variables but it doesn't fix the issue... any idea?
I wrote a tutorial here of how to do this. Essentially, you need to:
brew install unixodbc
brew install freetds --with-unixodbc
Add the freetds driver to odbcinst.ini
Add a DSN (Domain Source Name) to odbc.ini named "MY_DSN"
pip install pyodbc
e = create_engine("mssql+pyodbc://username:password#MY_DSN")
The walkthrough here does a much more thorough job of explaining this, including issues with SQL Server/FreeTDS Protocol Version Compatibility.
Client is Ubuntu 14.04.1 LTS talking to an MS SQL Server 2005. Ubuntu has no registered domain. It's inside the local network as is the MS SQL Server.
Perl 5.18.2 using DBI 1.63 and DBD::ODBC 1.52.
Installed FreeTDS 0.92 (with TDS v4.2) and unixODBC 2.2.14.
isql DSN USERNAME PASSWD at the command line also doesn't work. Perhaps I should start with that. I still get the same error which is Unable to connect to data source (SQL-08001).
My related config files:
2015-07-09 11:55:14 AM
NOTE: TDS version from tsql -C must go into freetds.conf and odbc.ini files
=========================================
/etc/odbcinst.ini:
[FreeTDS]
Description = FreeTDS 0.91 for Microsoft SQL Server 2005
#Driver = /usr/lib/odbc/libtdsodbc.so
Driver = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
Setup = /usr/lib/x86_64-linux-gnu/odbc/libtdsS.so
UsageCount = 1
#Threading = 2
fileusage = 1
dontdlclose = 1
=========================================
/etc/odbc.ini:
[ODBC Data Sources]
ResponseBDO = Response database desc in /etc/odbc/ini
[FreeTDS]
Description = FreeTDS 0.91 driver
Driver = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
[responsebdo]
Driver = FreeTDS
Description = Response MSSQL 2005 ODBC driver
SERVER = sqlsvr.mydomain.com
PORT = 1433
USER = 'domain\domainuser'
Password = mypasswd
Database = r4w_004
# TDS_VERSION should be same as reported by 'tsql -C'.
TDS_Version = 4.2
[Default]
Driver = /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
Description = Default FreeTDS ODBC driver
SERVER = 10.20.30.40
USER = "domain\domainuser"
Database = r4w_4
=========================================
Relevant part of /etc/freetds/freetds.conf:
# $Id: freetds.conf,v 1.12 2007/12/25 06:02:36 jklowden Exp $
#
# This file is installed by FreeTDS if no file by the same
# name is found in the installation directory.
#
# For information about the layout of this file and its settings,
# see the freetds.conf manpage "man freetds.conf".
#
[responsetds]
#host = 10.20.30.40
host = sqlsvr.mydomain.com
port = 1433
tds version = 4.2
connect timeout = 20
timeout = 20
dump file = /tmp/freetds-resp.log
instance = MSSQLSERVER
use ntlmv2 = yes
=========================================
tsql -C:
Compile-time settings (established with the "configure" script)
Version: freetds v0.91
freetds.conf directory: /etc/freetds
MS db-lib source compatibility: no
Sybase binary compatibility: yes
Thread safety: yes
iconv library: yes
TDS version: 4.2
iODBC: no
unixodbc: yes
SSPI "trusted" logins: no
Kerberos: yes
=========================================
odbcinst --version:
unixODBC 2.2.14
Perl connection info:
$respdsn="dbi:ODBC:Driver={SQL Native Client};Server=10.20.30.40;".
"UID=$respdbuser;PWD=$respdbpw;Database=r4w_004";
$respdbh=DBI->connect($respdsn);
I can connect to the database by using tsql at the command line.
But using Perl I get this error:
DBI connect('Driver={SQL Native Client};Server=10.19.1.3;UID=gilson\mwreports;PWD=MR4gilson;Database=r4w_004','',...) failed:
[unixODBC][Driver Manager]Data source name not found, and no default
driver specified (SQL-IM002) at /home/chuck/perl/gilson/jimv/fedex/fedex.pl line 1557.
at /usr/lib/perl5/DBI.pm line 691.
DBI::__ANON__[/usr/lib/perl5/DBI.pm:744](undef, undef) called at /usr/lib/perl5/DBI.pm line 747
My questions:
Is the "{SQL Native Client}" in the Perl connection string correct? Does it refer to an entry in the odbc.ini or freetds.conf file?
What am I missing here?
Thank you.
If you're using FreeTDS, then your Driver is FreeTDS not "Sql Native Client".
Try this line to get your database handle:
my $dbh = DBI->connect("dbi:ODBC:Driver=FreeTDS;Server=10.20.30.40;database=r4w_004", $respdbuser, $respdbpw);
I had the same problem, when I using tsql works normally but using perl with dbi didn't. I lost many hours trying to figure out the problem, so I saw the limitations of Adaptive Server:
The name cannot be more than 30 characters long.
The first character must be a letter (ASCII a through z, A through Z).
The characters that follow must be letters, numbers, or underscores (_).
... So I tried to change the password that was 32 characters long to 30 characters and it works.
The tsql accept long password but perl dbi sybase accept ony 30 characters.
Command to connect to default instance on port 1433:
perl -e 'use DBI;DBI->connect("dbi:Sybase:server=10.0.0.1","sa","max_30_characters_longpassword");'
Command to connect to named instance (use port udp 1434 to discover the port):
perl -e 'use DBI;DBI->connect("dbi:Sybase:server=10.0.0.1\\SQL2014","sa","max_30_characters_longpassword");'
Command to connect to named instance when you know the port that sqlserver is listening:
perl -e 'use DBI;DBI->connect("dbi:Sybase:server=10.0.0.1:60036","sa","max_30characters_long_password");'
I used the tcpdump to monitoring the connection to the sqlserver:
tcpdump -qn dst host 10.0.0.1 &
Maybe it helps someone. Thanks
I'm trying to connect to the sql server 2005 database from *NIX machine:
I have the following configuration: Linux 64bit
ruby -v
ruby 1.8.6 (2007-09-24 patchlevel 111) [x86_64-linux]
important gems:
dbd-odbc (0.2.4)
dbi (0.4.1)
active record sql server adapter - as plugin
ruby-odbc 0.9996 (installed without any options.)
unixODBC is installed
freeTDS is installed
cat /etc/odbcinst.ini
[FreeTDS]
Description = TDS driver (Sybase/MS SQL)
Driver = /usr/lib/libtdsodbc.so
Setup = /usr/lib/odbc/libtdsS.so
CPTimeout =
CPReuse =
FileUsage = 1
DSN:
DRIVER=FreeTDS;TDS_Version=8.0;SERVER=XXXX;DATABASE=XXX;Port=1433;uid=XXX;pwd=XXXX;"
or
DRIVER=/usr/lib/libtdsodbc.so;TDS_Version=8.0;SERVER=XXXX;DATABASE=XXX;Port=1433;uid=XXX;pwd=XXXX;"
I receive the following error:
>>ActiveRecord::Base.sqlserver_connection({"mode"=>"ODBC", "adapter"=>"sqlserver", "dsn"=>my_dns)
DBI::DatabaseError: IM002 (0) [unixODBC][Driver Manager]Data source name not found, and no default driver specified
from /usr/lib/ruby/1.8/DBD/ODBC/ODBC.rb:95:in `connect'
from /usr/lib/ruby/1.8/dbi.rb:424:in `connect'
from /usr/lib/ruby/1.8/dbi.rb:215:in `connect'
from /opt/ublip/rails/current/vendor/plugins/activerecord-sqlserver-adapter/lib/active_record/connection_adapters/sqlserver_adapter.rb:47:in `sqlserver_connection'
It looks like ODBC unable to find appropriate ODBC driver, but I have no ideas why.
I had a problem with /usr/lib/libtdsodbc.so which is empty in default debian package free-tds dev, but i solved it with remove broken package and installation from sources.
Will appreciate any thought!
Note:
I'm albe to connect using the same steps on mac 10.5
This looks close, and I've gotten the same type of setup to work on Ubuntu 8.04 (with Ruby 1.8.6.) Since this is on Debian, it should be the similar.
These packages should be installed: unixodbc unixodbc-dev freetds-dev libdbd-odbc-ruby tdsodbc
/etc/odbcinst.ini should have something like this:
[FreeTDS]
Description = FreeTDS unixODBC Driver
Driver = /usr/lib/odbc/libtdsodbc.so
Setup = /usr/lib/odbc/libtdsodbc.so
UsageCount = 1
And /etc/freetds/freetds.conf: (where XXX is the database name and NNN... is the IP of the server):
[XXX]
host = NNN.NNN.NNN.NNN
tds version = 8.0
client charset = UTF-8
text size = 262144
port = 1433
Then to connect:
ActiveRecord::Base.sqlserver_connection({"mode"=>"ODBC",
"adapter"=>"sqlserver",
"dsn"=>"DRIVER=FreeTDS;SERVERNAME=XXX;DATABASE=XXX;uid=XXX;pwd=XXX"
)