Bulk Copy Functions
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.