在 T-Sql 插入语句中使用 Row Constructor 语法有什么好处?

2021-09-10 00:00:00 sql tsql sql-server-2008 sql-server

在 SQL Server 2008 中，您可以使用 Row Constructor 语法通过单个插入语句插入多行，例如:

In SQL Server 2008, you can use the Row Constructor syntax to insert multiple rows with a single insert statement, e.g.:

insert into MyTable (Col1, Col2) values
  ('c1v', 0),
  ('c2v', 1),
  ('c3v', 2);

除了可读性之外，这样做比为每条记录使用一个插入语句有什么好处吗?

Are there benefits to doing this instead of having one insert statement for each record other than readability?

推荐答案

是的 - 您将看到性能改进.尤其是在记录大量的情况下.

Yes - you will see performance improvements. Especially with large numbers of records.

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