How to connect from ruby to MS Sql Server - sql-server

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"
)

Related

Can't find FreeTDS data sources with pyodbc

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.

Connect to a SQL Server database through RODBC

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

Connect to SQL Server using SQLAlchemy

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.

tsql connects to ODBC but Perl DBI gets an error

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

RODBC MS SQL access from Ubuntu using FreeTDS

I'm trying to access MS SQL server hosted on my Windows box from an Ubuntu machine. I have a shiny app that access MSSQL that works fine on Windows. I want to host this with shiny server on Ubuntu so that others can access the webpage and provide their SQL server as input to the app.
All of this works fine on Windows. Now I'm not able to get unixODBC working. I think I've got the odbc/freeTDS installation and configuration correct. I'm able to connect and query SQL DB instance from Ubuntu terminal using tsql -S . It took some googling but eventually it worked.
Now, when I try to connect from R I get this error.
sql <- odbcConnect("abc.xyz.com", "uname", "passwd")
In odbcDriverConnect("DSN=abc.xyz.com;UID=uname;PWD=passwd")
: [RODBC] ERROR: state 08001, code 0, message
[unixODBC][FreeTDS][SQL Server]Unable to connect to data source 2: In
odbcDriverConnect("DSN=abc.xyz.com;UID=uname;PWD=passwd")
: [RODBC] ERROR: state 01000, code 20002, message
[unixODBC][FreeTDS][SQL Server]Adaptive Server connection failed 3: In
odbcDriverConnect("DSN=abc.xyz.com;UID=uname;PWD=passwd")
: [RODBC] ERROR: state 01000, code 20017, message
[unixODBC][FreeTDS][SQL Server]Unexpected EOF from the server 4: In
odbcDriverConnect("DSN=abc.xyz.com;UID=uname;PWD=passwd")
: ODBC connection failed
freeTDS.conf
[abc.xyz.com]
host = abc.xyz.com
port = 49475
tds version = 8.0
odbcinst.ini
[FreeTDS]
Description = FreeTDS unixODBC Driver
Driver = /usr/local/lib/libtdsodbc.so
Setup = /usr/local/lib/libtdsodbc.so
odbc.ini
[abc.xyz.com]
Description = Shiny testing
Driver = FreeTDS
Trace = No
Server = abc.xyz.com\instance_name
Database = dbanme
port = 49475
This error "Unexpected EOF from the server" is not new to me. I got the same error when I was trying to connect using tsql. I was able to overcome this by adding "tds version = 8.0" line to freeTDS.conf. Not sure how I can get RODBC to use this config. I've read posts were other users were able to sql-server using freeTDS. Not sure what is missing here. I also tried re-installing RODBC.
I fixed this. TDS version was needed in odbc.ini file.
TDS_Version = 8.0
tsql reads version info from freeTDS.conf and worked. isql was failing with same error and it was also looking for this config in odbc.ini. So test with isql if you are configuring for R/Python.
I don't know what is causing the error on your side. Hope this helps:
These are my settings for RODBC 1.3-10 to connect to MSSQL Server 2012. I am also on ubuntu and this works for me.
I think I installed the RODBC package from the Ubuntu repos:
apt-cache policy r-cran-rodbc
r-cran-rodbc:
Installed: 1.3-10-1
Candidate: 1.3-10-1
Version table:
*** 1.3-10-1 0
500 ftp://ftp.fu-berlin.de/linux/ubuntu/ trusty/universe amd64 Packages
100 /var/lib/dpkg/statu
uname -a
Linux xxx 3.13.0-30-generic #54-Ubuntu SMP Mon Jun 9 22:45:01 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
odbc.ini
[mydsn]
APP = unixodbc
Description = master on vmXX
Driver = TDSdriver
Server = vmXX
Database = master
Port = 1433
#Trace = No
#TraceFile = /var/log/freetds/freetds--odbc.log
TDS Version = 7.2
freetds.conf
[global]
# TDS protocol version
; tds version = 4.2
# Whether to write a TDSDUMP file for diagnostic purposes
# (setting this to /tmp is insecure on a multi-user system)
#dump file = /tmp/freetds.log
#debug flags = 0xffff
# Command and connection timeouts
; timeout = 10
; connect timeout = 10
# If you get out-of-memory errors, it may mean that your client
# is trying to allocate a huge buffer for a TEXT field.
# Try setting 'text size' to a more reasonable limit
text size = 64512
[vmXX]
host = 111.222.333.555
port = 1433
tds version = 7.2
client charset = UTF-8
Output from
ps aux | grep "/R"
knb 56969 ....
lsof -p 56969 | grep -i odbc
R 56969 knb mem REG 8,1 72408 8528592 /usr/lib/x86_64-linux-gnu/libodbcinst.so.1.0.0
R 56969 knb mem REG 8,1 400608 8521896 /usr/lib/x86_64-linux-gnu/odbc/libtdsodbc.so
R 56969 knb mem REG 8,1 419680 8525415 /usr/lib/x86_64-linux-gnu/libodbc.so.1.0.0
R 56969 knb mem REG 8,1 96845 8933205 /usr/local/lib/R/site-library/RODBC/libs/RODBC.so
I had a similar error and realized R was just unable to read my user id correctly as it had a slash in it. I placed my credentials in a text file which solved the problem for me.
cred <- "/myPath/ODBC_cred.txt"
sql <- RODBC::odbcConnect("abc.xyz.com", uid=readLines(cred)[1], pwd=readLines(cred)[2])

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