When inserting large datasets into SQL Server using C#, performance optimization is crucial. One common bottleneck is disk I/O, as seen by high %Disk time usage. To address this issue, consider these strategies:
Disabling the primary key constraint during insertion can significantly improve performance. Once all rows are inserted, you can recreate the primary key to enforce data integrity.
Inserting data into a temporary table with the same schema as the final destination can reduce contention and minimize disk I/O. Periodically transfer data from the temporary table into the main table to keep its size manageable.
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