从C＃在SQL Server中插入记录的最快方法是什么

Question

I have 5 tables, for each table i want to delete data and insert 100 records. all operation should happen in single transaction.

Answer 1

In real terms, 100 records is not much; if performance is your aim, you could try using SqlBulkCopy - this uses raw TDS, and supports transactions via the optional constructor argument . In terms of how to feed data in: SqlBulkCopy accepts either DataTable or a data reader; "FastMember" allows you to treat a List<T> or similar as a data-reader, if that helps (see example at the bottom of this page ). However, you should be careful to actually time that against doing the same thing with regular parameterized TSQL operations, as for a number like 100 it isn't guaranteed that SqlBulkCopy would be faster.

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An alternative to SqlBulkCopy would be "table valued parameters"; this requires more config, as the user type needs to be defined on the server etc, but; it can work.