ODBC driver The ServiceNow open database connectivity (ODBC) driver provides read-only access to the database associated with your ServiceNow instance. The ODBC driver is compliant to version 3.52 of the Microsoft ODBC core API conformance. The ServiceNow ODBC driver uses the ServiceNow web services support for a query-only interface. The ODBC driver supports only SELECT statements or read-only functions, and does not modify your instance data. Because the ODBC driver uses the web services interface, platform-wide access control (ACL) is enforced and data security is in place. Note: The ODBC driver has these limitations: The ODBC driver supports only SELECT statements or read-only functions, and does not modify your instance data. There is no supported way to use the ODBC driver with a Java client application or with a Java JDBC-ODBC bridge. There is a hardcoded limit of 512 characters when accessing views through ODBC. Because of this limitation, a maximum of 11 table sys_ids can be included in an ODBC view query. Anything over 11 tables results in an error. Note: Versions of the ODBC driver older than 126.96.36.199 are no longer supported. Getting started with ODBCBefore installing the ODBC driver, view the video on this page, create an ODBC user account, assign the odbc role, and define an ACL rule for the odbc role.Installing the ODBC driverReview setup requirements, download the ODBC driver installer, and install the driver to a computer.Configuring the ODBC driverAfter installing the ODBC driver, configure it to connect to your ServiceNow instance and to communicate through a proxy server, if applicable, and set properties to control ODBC behavior.Test the ODBC driverAfter configuring the ODBC driver, test that the driver can connect to the base system instance as the ODBC user and can query data from a target table.ODBC behaviorAfter testing the ODBC driver you can use it to query your instance database from a variety of client applications.ODBC and client applicationsSee the following pages for examples of how to use the ODBC driver to create data sources from other applications.