Bulk Copy Functions
SQL Server Native Client (SNAC) is not supported beyond SQL Server 2012. Avoid using SNAC in new development work, and plan to modify applications that currently use it. The Microsoft ODBC Driver for SQL Server provides native connectivity from Windows to Microsoft SQL Server and Microsoft Azure SQL Database.
The SQL Server-specific bulk-copy API extension of the SQL Server Native Client ODBC driver allows client applications to rapidly add data rows to, or extract data rows from, a SQL Server table.
When using SQL Server Native Client, you can reference the bulk copy functions (BCP) in SQLNCLI11.LIB and SQLNCLI.H.
An application that uses BCP API function calls should link with the library (.lib) that shipped with the driver (.dll) used by the application. A BCP application should not link with more than one driver library.