Replicate ServiceNow Data from PowerShell

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ServiceNow ODBC Driver

The ServiceNow ODBC Driver is a powerful tool that allows you to connect with live ServiceNow data, directly from any applications that support ODBC connectivity.

Access ServiceNow data like you would a database - read, write, and update Schedules, Timelines, Questions, Syslogs, etc. through a standard ODBC Driver interface.



Write a quick PowerShell script to query ServiceNow data. Use connectivity to the live data to replicate ServiceNow data to SQL Server.



The CData ODBC Driver for ServiceNow enables out-of-the-box integration with Microsoft's built-in support for ODBC. The ODBC driver instantly integrates connectivity to the real ServiceNow data with PowerShell.

You can use the .NET Framework Provider for ODBC built into PowerShell to quickly automate integration tasks like replicating ServiceNow data to other databases. This article shows how to replicate ServiceNow data to SQL Server in 5 lines of code.

You can also write PowerShell code to download ServiceNow data. See the examples below.

Create an ODBC Data Source for ServiceNow

If you have not already, first specify connection properties in an ODBC DSN (data source name). This is the last step of the driver installation. You can use the Microsoft ODBC Data Source Administrator to create and configure ODBC DSNs.

ServiceNow uses the OAuth 2.0 authentication standard. To authenticate using OAuth, you will need to register an OAuth app with ServiceNow to obtain the OAuthClientId and OAuthClientSecret connection properties. In addition to the OAuth values, you will need to specify the Instance, Username, and Password connection properties.

See the "Getting Started" chapter in the help documentation for a guide on connecting to ServiceNow.

Connect to ServiceNow

The code below shows how to use the DSN to initialize the connection to ServiceNow data in PowerShell:

$conn = New-Object System.Data.Odbc.OdbcConnection $conn.ConnectionString = "DSN=CData ServiceNow Source x64"

Back Up ServiceNow Data to SQL Server

After you enable caching, you can use the code below to replicate data to SQL Server.

Set the following connection properties to configure the caching database:

  • CacheProvider: The name of the ADO.NET provider. This can be found in the Machine.config for your version of .NET. For example, to configure SQL Server, enter System.Data.SqlClient.

  • CacheConnection: The connection string of properties required to connect to the database. Below is an example for SQL Server:

    Server=localhost;Database=RSB;User Id=sqltest;Password=sqltest;

The SQL query in the example can be used to refresh the entire cached table, including its schema. Any already existing cache is deleted.

$conn.Open() # Create and execute the SQL Query $SQL = "CACHE DROP EXISTING SELECT * FROM " + $incident $cmd = New-Object System.Data.Odbc.OdbcCommand($sql,$conn) $count = $cmd.ExecuteNonQuery() $conn.Close()

The driver gives you complete control over the caching functionality. See the help documentation for more caching commands and usage examples. See the help documentation for steps to replicate to other databases.

Other Operations

To retrieve ServiceNow data in PowerShell, call the Fill method of the OdbcDataAdapter method. To execute data manipulation commands, initialize the OdbcCommand object and then call ExecuteNonQuery. Below are some more examples commands to ServiceNow through the .NET Framework Provider for ODBC:

Retrieve ServiceNow Data

$sql="SELECT sys_id, priority from incident" $da= New-Object System.Data.Odbc.OdbcDataAdapter($sql, $conn) $dt= New-Object System.Data.DataTable $da.Fill($dt) $dt.Rows | foreach { $dt.Columns | foreach ($col in dt{ Write-Host $1[$_] } }