USE AdventureWorks;
GO
UPDATE Sales.SalesPerson SET SalesYTD = SalesYTD + SubTotal
FROM Sales.SalesPerson AS sp JOIN Sales.SalesOrderHeader AS so
    ON sp.SalesPersonID = so.SalesPersonID
    AND so.OrderDate = (SELECT MAX(OrderDate) FROM Sales.SalesOrderHeader
              WHERE SalesPersonID = sp.SalesPersonID)
这段代码中使用go的用意是？刚开始写学，不理解。先谢谢了。

GO代表批处理,就是一段代码,同时交给服务器执行.

谢谢兄弟了。