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Microsoft.Data.SqlClient is a .NET data provider for Microsoft SQL Server and the Azure SQL family of databases. It grew from a union of the two System.Data.SqlClient components which live independently in .NET and .NET Framework. Going forward, support for new SQL Server and Azure SQL features will only be implemented in Microsoft.Data.SqlClient.

The Microsoft.Data.SqlClient package supports the following environments:

• .NET Framework 4.6.2+
• .NET 8.0+

The Microsoft.Data.SqlClient NuGet package is available onNuGet.org.

When targeting .NET Framework on Windows, a package reference toMicrosoft.Data.SqlClient.SNI loads nativeMicrosoft.Data.SqlClient.SNI.<platform>.dll libraries into the client's build directories.

When targeting .NET on Windows, a package reference toMicrosoft.Data.SqlClient.SNI.runtime loadsarm64,x64 andx86 nativeMicrosoft.Data.SqlClient.SNI.dll libraries into subdirectories in the client's build directory.

Special thanks to everyone who has contributed to the project.We thank you for your continuous support in improving the SqlClient library!

• Edward Neal (@edwardneal)
• Erik Ejlskov Jensen (@ErikEJ)
• Michel Zehnder (@MichelZ)
• Shay Rojansky (@roji)
• Phillip Haydon (@phillip-haydon)
• Rasmus Melchior Jacobsen (@rmja)
• Robin Sue (@Suchiman)
• Simon Cropp (@SimonCropp)
• Stefán Jökull Sigurðarson (@stebet)
• Stephen Toub (@stephentoub)
• Wraith (@Wraith2)

Up-to-date list of contributors:Contributor Insights

All preview and stable driver release notes are available underrelease-notes.

Refer toporting-cheat-sheet.md for a safe porting experience from System.Data.SqlClient to Microsoft.Data.SqlClient and share your experience with us by enhancing this guide for future developers.

Check out ourFAQ. Still not answered? Create anissue to ask a question.

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The Microsoft.Data.SqlClient Driver for SQL Server is licensed under the MIT license. See theLICENSE file for more details.

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.