When you run a query that contains an UPDATE statement in Microsoft SQL Server 2016, you may receive an error message that resembles the following:
Msg 4819, Level 16, State 1 Cannot bulk load. The bulk data stream was incorrectly specified as sorted or the data violates a uniqueness constraint imposed by the target table. Sort order incorrect for the following two rows: primary key of first row: <row_id>, primary key of second row: <row_id>.
This problem was fixed in the following cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server: