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What is DSN in ODBC connection string?

Posted on by Arif Clayton

What is DSN in ODBC connection string?

A DSN is the saved collection of settings required to connect to an ODBC data source.

What is a DSN string?

In computing, a data source name (DSN, sometimes known as a database source name, though “data sources” can comprise other repositories apart from databases) is a string that has an associated data structure used to describe a connection to a data source.

How do I add System DSN to ODBC?

To add a data source by using ODBC Administrator

  1. From the Control Panel, access Administrative Tools and then either ODBC Data Sources (64-bit) or ODBC Data Sources (32-bit).
  2. Click the User DSN, System DSN, or File DSN tab, and then click Add.
  3. Click SQL Server, and then click Finish.

How do I use ODBC System DSN?

Enter a Name for the data connector, and then set the Data Provider dropdown to ODBC Generic.

  1. Connect using an existing system DSN.
  2. Connect using an existing system DSN.
  3. Select the ODBC driver.
  4. Enter the ODBC connection string.
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What is a DSN setting?

Data Source Name (DSN) settings connect to a database on a Windows system. Any user on the system can use the DSN to connect to the database. The DSN contains the username, password and server name for the database, so it’s not necessary to re-enter these login credentials each time the user wants to connect.

Where is the ODBC connection string stored?

64-bit SYSTEM ODBC data sources are stored in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC. INI. 32-bit SYSTEM ODBC data sources are stored in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ODBC\ODBC.

How do I add a System DSN?

2 Answers

  1. Open the “ODBC Data Source Administrator” dialog by navigating Start -> Control Panel -> Administrative Tools -> Data Sources (ODBC)
  2. Select the “System DSN” tab and pass Add.
  3. Select the Microsoft Access Driver and press Finish.
  4. Enter the Data Source Name “MondrianFoodMart” (and a suitable description)

How do I test ODBC DSN connection?

Test the ODBC driver

  1. In Windows, navigate to Start > Programs > ServiceNow ODBC > ODBC Administrator.
  2. Select the System DSN tab, and then select the ServiceNow data source.
  3. Click Configure.
  4. Click Test Connect in the ODBC driver Setup dialog box.
  5. Enter the login credentials.
  6. Click OK to log in to the data source.

How do I use a DSN file?

How do I create a File DSN to use as data source for ODBC imports…

  1. In Control Panel go to Administrative Tools > Data Sources ODBC (exact name differs based on version of SQL Server)
  2. Select File DSN tab.
  3. Click Add.
  4. Select SQL Native Client if your ODBC source relies on this DB engine.
  5. Name the file data source.

Where is ODBC System DSN stored?

The File DSNs are stored by default in the following location:Program Files\Common Files\Odbc\Data Sources folder.

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