摘要：
USE AdventureWorks2008R2;GODECLARE complex_cursor CURSOR FOR SELECT a.BusinessEntityID FROM HumanResources.EmployeePayHistory AS a WHERE RateChangeDate <> (SELECT MAX(RateChangeDate) FROM HumanResources.EmployeePayHistory AS b WHERE a.BusinessEntityID = b.BusinessEntityID) ;OPEN complex_cursor 阅读全文
