While connecting .NET to sybase server I got this error message:
[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
This has worked properly before. System DSN with same details worked and data connection through vs.net also worked.
I am using VS.NET 2005.
Any suggestions?
Andreas
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asked Nov 12, 2008 at 9:55
1
If you’re working with an x64 server, keep in mind that there are different ODBC settings for x86 and x64 applications. The «Data Sources (ODBC)» tool in the Administrative Tools list takes you to the x64 version. To view/edit the x86 ODBC settings, you’ll need to run that version of the tool manually:
%windir%SysWOW64odbcad32.exe (%windir% is usually C:Windows)
When your app runs as x64, it will use the x64 data sources, and when it runs as x86, it will use those data sources instead.
answered Feb 17, 2011 at 20:34
SqlRyanSqlRyan
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3
For anyone coming to this latterly, I was having this problem over a Windows network, and offer an additional thing to check:
Python script connecting would work from commandline on my (linux) machine, but some users had problems connecting — that it worked from CLI suggested the DSN and credentials were right. The issue for us was that the group security policy required the ODBC credentials to be set on every machine. Once we added that (for some reason, the user had three of the four ODBC credentials they needed for our various systems), they were able to connect.
You can of course do that at group level, but as it was a simple omission on the part of one machine, I did it in Control Panel > ODBC Drivers > New
answered Nov 22, 2016 at 12:40
WithnailWithnail
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Perform the following steps:
- Start the Registry Editor by typing
regeditin the Run window. - Select the following key in the registry:
HKEY_LOCAL_MACHINESOFTWAREODBC. - In the Security menu, click Permissions.
- Grant Full Permission to the account which is being used for making connections.
- Quit the Registry Editor.
honk
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answered Nov 15, 2008 at 7:16
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Symptoms
«ODBC error. Data Source name not found and no default driver specified fatal error finish processing.»Reports run successfully on the local machine; the error occurs when they are sent to the Report Server queue.
Cause
The Data Source was not properly defined on the Report Server.
Resolution
Define the data source using the ODBC Administrator; the data source name must match the name specified in the Company Information.
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While connecting .NET to sybase server I got this error message:
[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
This has worked properly before. System DSN with same details worked and data connection through vs.net also worked.
I am using VS.NET 2005.
Any suggestions?
Andreas
5,2748 gold badges44 silver badges52 bronze badges
asked Nov 12, 2008 at 9:55
1
If you’re working with an x64 server, keep in mind that there are different ODBC settings for x86 and x64 applications. The «Data Sources (ODBC)» tool in the Administrative Tools list takes you to the x64 version. To view/edit the x86 ODBC settings, you’ll need to run that version of the tool manually:
%windir%SysWOW64odbcad32.exe (%windir% is usually C:Windows)
When your app runs as x64, it will use the x64 data sources, and when it runs as x86, it will use those data sources instead.
answered Feb 17, 2011 at 20:34
SqlRyanSqlRyan
32.8k33 gold badges113 silver badges195 bronze badges
3
For anyone coming to this latterly, I was having this problem over a Windows network, and offer an additional thing to check:
Python script connecting would work from commandline on my (linux) machine, but some users had problems connecting — that it worked from CLI suggested the DSN and credentials were right. The issue for us was that the group security policy required the ODBC credentials to be set on every machine. Once we added that (for some reason, the user had three of the four ODBC credentials they needed for our various systems), they were able to connect.
You can of course do that at group level, but as it was a simple omission on the part of one machine, I did it in Control Panel > ODBC Drivers > New
answered Nov 22, 2016 at 12:40
WithnailWithnail
3,0802 gold badges31 silver badges47 bronze badges
Perform the following steps:
- Start the Registry Editor by typing
regeditin the Run window. - Select the following key in the registry:
HKEY_LOCAL_MACHINESOFTWAREODBC. - In the Security menu, click Permissions.
- Grant Full Permission to the account which is being used for making connections.
- Quit the Registry Editor.
honk
8,77711 gold badges79 silver badges81 bronze badges
answered Nov 15, 2008 at 7:16
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04-06-2017
04:36 AM
Hi,
I have created a Power BI Report using a MongoDB data source. I’ve used the following ODBC connector to connect MongoDB to Power BI http://www.cdata.com/drivers/mongodb/odbc/
When I publish my report online and try to schedule refresh using my personal gateway, the following error occurs in the data source credentials: ODBC: ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
I’m sure that the data source name and driver are specified correctly. Could there be any another reason for this error?
Message 1 of 13
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04-17-2017
06:48 PM
Hi @jagrutijoshi,
You would also need to add all the CSV data sources under registered on-premises gateway, this way, you would be able to use on-premises gateway to refresh your dataset.
Thanks,
Lydia Zhang
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
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09-26-2018
05:47 AM
Hi,
There is a ready connector available for Tally which can import all data from Tally at pre-defined interval. You may connect on contact@easyreports.in for further details.
Regards,
Ravi
Message 12 of 13
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09-26-2018
05:46 AM
Hi,
There is a ready connector available for Tally which can import all data from Tally at pre-defined interval. You may connect on contact@easyreports.in for further details.
Regards,
Ravi
Message 11 of 13
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04-06-2017
07:20 PM
Hi @jagrutijoshi,
Do you install 32 bit or 64 bit ODBC connector ? And do you create system DSN for MongoDB following the guide in this blog?
Could you please install on-premises gateway and add the ODBC data source under the registered gateway, then check if you can set schedule refresh for your dataset?
Thanks,
Lydia Zhang
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Message 2 of 13
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04-11-2017
12:42 AM
Hi @jagrutijoshi,
Have you added the ODBC data source under registered on-premises gateway?
Thanks,
Lydia Zhang
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Message 4 of 13
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04-11-2017
01:50 AM
Hi @jagrutijoshi,
Could you please post a screenshot about your sceanrio? You can check this similar thread about how to add ODBC data source under gateway.
Thanks,
Lydia Zhang
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
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04-17-2017
02:35 AM
Hi @jagrutijoshi,
Have you included other data source except the ODBC data source in your dataset? Could you please post a screenshot about data sources in your PBIX file? You can go to File -> Options and settings ->Data source settings to check data sources for Power BI Desktop.
Thanks,
Lydia Zhang
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Message 8 of 13
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04-17-2017
06:48 PM
Hi @jagrutijoshi,
You would also need to add all the CSV data sources under registered on-premises gateway, this way, you would be able to use on-premises gateway to refresh your dataset.
Thanks,
Lydia Zhang
Community Support Team _ Lydia Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
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Question
-
User944339287 posted
hi guys, i have installed MySQL ODBC Driver 3.51 & 5.1 in my pc.
I got the following error if my connection as below:
Dim ConnStr As String = «DRIVER={MySQL ODBC 5.1 Driver};SERVER=localhost;DATABASE=db_testing;UID=user_testing;PASSWORD=12345;OPTION=3;»
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
* but it’s working fine if i change ODBC 5.1 Driver to ODBC 3.51
Please advice. TQ
All replies
-
User944339287 posted
Hi, thanks for your replied.
My connectionstring is correct, just cannot run with ODBC 5.1 Driver
Please advice. TQ
-
User-1716253493 posted
Maybe you need to configure DSN in Administration Tools => ODBC
When install driver choose for all users instead current user
-
User1386501324 posted
Hi, I had the same problem a few days ago.
if you installed the apropiated driver:
you must look on your server for the ODBC Data Source Administrator that can be found in Control Panel —> Administrative Tools —> Data Sources (ODBC). (on 64 bit Windows systems, you’ll have to explicitely call c:windowssyswow64odbcad32.exe
) and add the driver to the System DSN tab.bye
-
User-802364750 posted
I had the same error message. The ODBC driver was not 64 bit. I had to compile my application as an x86 process and it worked. I just wanted to throw that out there for any else who encounters it.
-
User556814665 posted
Thank you, thank you, and thank you. Had an ancient 32 bit MS Access application that is a long way from being rewritten. Needed it run on Windows 7 64 bit. It just worked after folowing your directions. — Al
-
User13166782 posted
Yes it worked for me.
I have just added the DNS.
Thanks
-
User327387390 posted
Hi, Patino:
where did you have to call out «c:windowssyswow64odbcad32.exe» as you suggested?
I am also in AMD 64 system and I have created ODBC in system DSN for both 32 bit and 64 bit.
thanks in advance for your advice
This article, provides useful troubleshooting tips, for the following error which you might get, under certain circumstances, when trying to connect to SQL Server from Python, using pyodbc: [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect).
Prior to sharing our tips for troubleshooting the issue, let’s discuss about the two main ways of connecting to SQL Server from Python.
Ways of Connecting to SQL Server from Python
In Python, there are 2 main ways for connecting to SQL Server, using the pyodbc module and Microsoft ODBC Driver 17 for SQL Server.
Specifying the Full Connection String in Python
The first way, is to define the full connection string in you Python code.
For example, in case you are using a username/password instead of a trusted connection, here’s a relevant example:
conn = pyodbc.connect('DRIVER={ODBC Driver 17 for SQL Server};SERVER=server_name;DATABASE=database_name;UID=user;PWD=password')
In case you are using a trusted connection, here’s another relevant example:
conn = pyodbc.connect('DRIVER={ODBC Driver 17 for SQL Server};SERVER=server_name;DATABASE=database_name;Trusted_Connection=yes;')
Referencing an ODBC System DSN
The second way, is to reference an ODBC DSN.
Here’s a code example, that references and ODBC DSN:
conn = pyodbc.connect('DSN=mynewdsn;UID=user;PWD=password')
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Troubleshooting the Issue
The error message we are examining in this post, indicates that we are trying to connect to SQL Server, using the second method, that is referencing an ODBC DSN and the process fails.
In this case, we can further troubleshoot the issue, by performing the below checks.
Check 1 – Verify that the DSN Name is Valid
Check in ODBC Data Source Administrator that the DSN exists with the exact same name you are referencing it in your Python code.
Additionally, you must check that the DSN indeed works.
For checking the DSN:
- 64-bit ODBC Data Source Administrator if you are using a 64-bit version of Windows:
C:WINDOWSSystem32odbcad32.exe
- 32-bit ODBC Data Source Administrator if you are using a 32-bit version of Windows:
C:WINDOWSSysWOW64odbcad32.exe
Check 2 – Verify that the DSN is Correctly Referenced in Python Code
If the DSN uses a username/password, you need to also specify it in your Python code as per below example:
conn = pyodbc.connect('DSN=dsn_name;UID=user;PWD=password')
If the DSN uses a trusted connection, you need to also specify it in your Python code as per below example:
conn = pyodbc.connect('DSN= dsn_name;Trusted_Connection=yes;')
If None of the Above Helps
If none of the above helps, then you may consider instead of using a DSN, to define the full connection in your Python code (see first way above).
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Reference: SQLNetHub.com (https://www.sqlnethub.com)
© SQLNetHub
Artemakis Artemiou is a Senior SQL Server Architect, Author, a 9 Times Microsoft Data Platform MVP (2009-2018). He has over 20 years of experience in the IT industry in various roles. Artemakis is the founder of SQLNetHub and {essentialDevTips.com}. Artemakis is the creator of the well-known software tools Snippets Generator and DBA Security Advisor. Also, he is the author of many eBooks on SQL Server. Artemakis currently serves as the President of the Cyprus .NET User Group (CDNUG) and the International .NET Association Country Leader for Cyprus (INETA). Moreover, Artemakis teaches on Udemy, you can check his courses here.
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Problem
Attempts to connect to a data source either via IBM SPSS Modeler or the example program fail with the following error:
«Data Source name not found and no default driver specified»
Symptom
Unable to connect to data source
Cause
There is an error in the data source set up in the odbc.ini
Diagnosing The Problem
Review the data source name in the odbc.ini
Resolving The Problem
When defining a DSN in a UNIXLinux odbc.ini the datasource name specified in the [ODBC Data Sources] section must match exactly the datasource name specified within square brackets above the section in which you are defining the parameters for the DSN. If there is any mismatch between these you will see the error when attempting to make a connection to the datasource.
Eliminate any such mismatches from odbc.ini and ensure the example program can be used to successfully connect to the datasource.
[{«Product»:{«code»:»SS3RA7″,»label»:»IBM SPSS Modeler»},»Business Unit»:{«code»:»BU059″,»label»:»IBM Software w/o TPS»},»Component»:»Modeler»,»Platform»:[{«code»:»PF025″,»label»:»Platform Independent»}],»Version»:»Not Applicable»,»Edition»:»»,»Line of Business»:{«code»:»LOB10″,»label»:»Data and AI»}}]