BCP (bulk copy program) is a utility that installs with SQL Server and can assist with large data transfers.
“The bcp utility bulk copies data between an instance of Microsoft SQL Server and a data file in a user-specified format. The bcp utility can be used to import large numbers of new rows into SQL Server tables or to export data out of tables into data files. Except when used with the queryout option, the utility requires no knowledge of Transact-SQL. To import data into a table, you must either use a format file created for that table or understand the structure of the table and the types of data that are valid for its columns.” – Microsoft
To see the parameter options from the command line on a machine with SQL Server installed, type “bcp” and press Enter.
For further information please see the LINK.