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Replicate MongoDB Data from PowerShell
Write a quick PowerShell script to query MongoDB data. Use connectivity to the live data to replicate MongoDB data to SQL Server.
Getting Started
The CData ODBC Driver for MongoDB enables out-of-the-box integration with Microsoft's built-in support for ODBC. The ODBC driver instantly integrates connectivity to the real MongoDB data with PowerShell.
You can use the .NET Framework Provider for ODBC built into PowerShell to quickly automate integration tasks like replicating MongoDB data to other databases. This article shows how to replicate MongoDB data to SQL Server in 5 lines of code.
You can also write PowerShell code to execute create, read, update, and delete (CRUD) operations. See the examples below.
About MongoDB Data Integration
Accessing and integrating live data from MongoDB has never been easier with CData. Customers rely on CData connectivity to:
- Access data from MongoDB 2.6 and above, ensuring broad usability across various MongoDB versions.
- Easily manage unstructured data thanks to flexible NoSQL (learn more here: Leading-Edge Drivers for NoSQL Integration).
- Leverage feature advantages over other NoSQL drivers and realize functional benefits when working with MongoDB data (learn more here: A Feature Comparison of Drivers for NoSQL).
MongoDB's flexibility means that it can be used as a transactional, operational, or analytical database. That means CData customers use our solutions to integrate their business data with MongoDB or integrate their MongoDB data with their data warehouse (or both). Customers also leverage our live connectivity options to analyze and report on MongoDB directly from their preferred tools, like Power BI and Tableau.
For more details on MongoDB use case and how CData enhances your MongoDB experience, check out our blog post: The Top 10 Real-World MongoDB Use Cases You Should Know in 2024.
Getting Started
Create an ODBC Data Source for MongoDB
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.
Set the Server, Database, User, and Password connection properties to connect to MongoDB. To access MongoDB collections as tables you can use automatic schema discovery or write your own schema definitions. Schemas are defined in .rsd files, which have a simple format. You can also execute free-form queries that are not tied to the schema.
Connect to MongoDB
The code below shows how to use the DSN to initialize the connection to MongoDB data in PowerShell:
$conn = New-Object System.Data.Odbc.OdbcConnection
$conn.ConnectionString = "DSN=CData MongoDB Source x64"
Back Up MongoDB 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 " + $restaurants
$cmd = New-Object System.Data.Odbc.OdbcCommand($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 MongoDB 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 CRUD commands to MongoDB through the .NET Framework Provider for ODBC:
Retrieve MongoDB Data
$sql="SELECT borough, cuisine from restaurants"
$da= New-Object System.Data.Odbc.OdbcDataAdapter($sql, $conn)
$dt= New-Object System.Data.DataTable
$da.Fill($dt)
$dt.Rows | foreach {
$dt.Columns | foreach ($col in dt{
Write-Host $1[$_]
}
}
Update MongoDB Data
$cmd = New-Object System.Data.Odbc.OdbcCommand("UPDATE restaurants SET Name='Morris Park Bake Shop' WHERE _id = @my_id", $conn)
$cmd.Parameters.Add(new System.Data.Odbc.OdbcParameter("my_id","001d000000YBRseAAH")
$cmd.ExecuteNonQuery()
Insert MongoDB Data
$cmd = New-Object System.Data.Odbc.OdbcCommand("INSERT INTO restaurants SET Name='Morris Park Bake Shop' WHERE _id = @my_id", $conn)
$cmd.Parameters.Add(new System.Data.Odbc.OdbcParameter("my_id","001d000000YBRseAAH")
$cmd.ExecuteNonQuery()
Delete MongoDB Data
$cmd = New-Object System.Data.Odbc.OdbcCommand("DELETE FROM restaurants WHERE _id = @myid", $conn)
$cmd.Parameters.Add(new System.Data.Odbc.OdbcParameter("my_id","001d000000YBRseAAH")
$cmd.ExecuteNonQuery()
Ready to get started?
Download a free trial of the MongoDB ODBC Driver to get started:
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MongoDB ODBC Driver
The MongoDB ODBC Driver is a powerful tool that allows you to connect with live MongoDB document databases, directly from any applications that support ODBC connectivity.
Access MongoDB like you would a database - read, write, and update through a standard ODBC Driver interface.
