system.data.sqlclient

About

The legacy .NET Data Provider for SQL Server. These classes provide access to versions of SQL Server and encapsulate database-specific protocols, including tabular data stream (TDS).

System.Data.SqlClient is deprecated. Please use Microsoft.Data.SqlClient instead.

Main Types

The main types provided by this library are:

• System.Data.SqlClient.SqlConnection
• System.Data.SqlClient.SqlException
• System.Data.SqlClient.SqlParameter
• System.Data.SqlDbType
• System.Data.SqlClient.SqlDataReader
• System.Data.SqlClient.SqlCommand
• System.Data.SqlClient.SqlTransaction
• System.Data.SqlClient.SqlParameterCollection
• System.Data.SqlClient.SqlClientFactory

Additional Documentation

• Introducing the new Microsoft.Data.SqlClient
• [https://techcommunity.microsoft.com/t5/sql-server-blog/announcement-system-data-sqlclient-package-is-now-deprecated/ba-p/4227205](Announcement: System.Data.SqlClient package is now deprecated)
• For conceptual information about using this namespace when programming with .NET, see SQL Server and ADO.NET.
• API reference for System.Data.SqlClient can be found in: https://learn.microsoft.com/en-us/dotnet/api/system.data.sqlclient?view=netframework-4.8.1
• API reference for Microsoft.Data.SqlClient can be found in: https://learn.microsoft.com/en-us/dotnet/api/microsoft.data.sqlclient

Related Packages

• https://www.nuget.org/packages/Microsoft.Data.SqlClient

License

System.Data.SqlClient is released as open source under the MIT license.