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SQL Server Native Client Features

SQL Server 2012

In addition to exposing features of the Windows (formerly Microsoft) Data Access Components (WDAC), SQL Server Native Client also implements many other features to expose SQL Server functionality.

Note
WDAC does not expose certain SQL Server features; you must use SQL Server Native Client to use these features.

In This Section

What's New in SQL Server Native Client: Lists the significant new SQL Server Native Client features.
ODBC Driver Behavior Change When Handling Character Conversions: Discusses a change of behavior beginning in SQL Server 2012 Native Client.
Using Database Mirroring: Discusses how SQL Server Native Client supports the use of mirrored databases, which is the ability to keep a copy, or mirror, of a SQL Server database on a standby server.
Performing Asynchronous Operations: Discusses how SQL Server Native Client supports asynchronous operations, which is the ability to return immediately without blocking on the calling thread.
Using Multiple Active Result Sets (MARS): Discusses how SQL Server Native Client supports multiple active result sets (MARS). MARS enables you to execute and receive multiple result sets using a single database connection
Using XML Data Types: Discusses how SQL Server Native Client supports the XML data type, which is a XML-based data type that can be used as a column type, variable type, parameter type, or function return type.
Using User-Defined Types: Discusses how SQL Server Native Client supports User-Defined Types (UDT), which extends the SQL type system by allowing you to store objects and custom data structures in a SQL Server database.
Using Large Value Types: Discusses how SQL Server Native Client supports large value data types, which are large object data types (LOB).
Changing Passwords Programmatically: Discusses how SQL Server Native Client supports the handling of expired passwords so that passwords can now be changed on the client without administrator involvement.
Working with Snapshot Isolation: Discusses how SQL Server Native Client supports the enhancement to row versioning that improves database performance by avoiding reader-writer blocking scenarios.
Working with Query Notifications: Discusses how SQL Server Native Client supports consumer notification on rowset modification.
Performing Bulk Copy Operations: Discusses how SQL Server Native Client supports bulk copy operations that allow the transfer of large amounts of data into or out of a SQL Server table or view.
Using Encryption Without Validation: Discusses how to use SQL Server Native Client to encrypt data sent to the server without validating the certificate.
Table-Valued Parameters (SQL Server Native Client): Discusses SQL Server Native Client support for the table-valued parameters.
Large CLR User-Defined Types: Discusses support for large common language runtime (CLR) user-defined types (UDTs).
FILESTREAM Support: Discusses SQL Server Native Client support for the enhanced FILESTREAM feature.
Service Principal Name (SPN) Support in Client Connections: Discusses how support for service principal names (SPNs) has been extended to enable mutual authentication across all protocols.
Sparse Columns Support in SQL Server Native Client: Discusses SQL Server Native Client support for sparse columns.
Date/Time Improvements: Discusses support added to SQL Server Native Client for the date and time data types.
Metadata Discovery: Discusses metadata discovery improvements that were made in SQL Server 2012.
UTF-16 Support in SQL Server Native Client 11.0: Discusses a behavior change introduced in SQL Server 2012. If you supply a fixed-length buffer when binding a column result or output parameter and if the wchar character written into the buffer before the terminating character is a high surrogate code point of a surrogate pair, and if the next wchar character is a low surrogate code point, SQL Server Native Client will not add the high surrogate code point to the buffer.
SQL Server Native Client Support for High Availability, Disaster Recovery: Discusses how your application can be configured to take advantage of the high-availability, disaster recovery features added in SQL Server 2012.
Accessing Diagnostic Information in the Extended Events Log: Discusses enhancements to SQL Server Native Client and data tracing that gives you access to diagnostic information in the ring buffer and XEvents log.
SQL Server Native Client Support for LocalDB: Discusses SQL Server Native Client support for the LocalDB feature.

Concepts

Installing SQL Server Native Client

Other Resources

SQL Server Native Client Programming

ODBC How-to Topics

OLE DB How-to Topics

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