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 Framework and .NET Core. 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 6.0+
The Microsoft.Data.SqlClient NuGet package is available on NuGet.org.
When targeting .NET Framework on Windows, a package reference to Microsoft.Data.SqlClient.SNI loads native Microsoft.Data.SqlClient.SNI.<platform>.dll libraries into the client's build directories.
When targeting .NET on Windows, a package reference to Microsoft.Data.SqlClient.SNI.runtime loads arm64, x64 and x86 native Microsoft.Data.SqlClient.SNI.dll libraries into subdirectories in the client's build directory.
| Topic | Link to File |
|---|---|
| Coding Style | coding-style.md |
| Guidelines for building the driver | BUILDGUIDE.md |
| Guidelines for Contributors | CONTRIBUTING.md |
| Changelog for all driver releases | CHANGELOG.md |
| Support Policy | SUPPORT.md |
| Code of Conduct | CODE_OF_CONDUCT.md |
| Copyright Information | COPYRIGHT.md |
Special thanks to everyone who has contributed to the project. We thank you for your continuous support in improving the SqlClient library!
- Wraith (@Wraith2)
- Erik Ejlskov Jensen (@ErikEJ)
- Simon Cropp (@SimonCropp)
- Stefán Jökull Sigurðarson (@stebet)
- Shay Rojansky (@roji)
- Stephen Toub (@stephentoub)
- Rasmus Melchior Jacobsen (@rmja)
- Phillip Haydon (@phillip-haydon)
- Robin Sue (@Suchiman)
Up-to-date list of contributors: Contributor Insights
All preview and stable driver release notes are available under release-notes.
Refer to porting-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.
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The Microsoft.Data.SqlClient Driver for SQL Server is licensed under the MIT license. See the LICENSE 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.