使用 SELECT ... INTO ... ，具有完全限定的表名 database.schema.object_name ，如下所示：

Use SELECT ... INTO ... with a fully qualified table names database.schema.object_name, like this:

USE DatabaseName;

SELECT *
FROM DatabaseName.schemaname.Tablename
INSERT INTO AnotherDatabase.schemaname.AnotherTablename;

然后您可以使用ADO.net或其他API从C＃执行此查询。

Then you can use ADO.net or other API to execute this query from C#.