USE AdventureWorks2008R2;
GO
DECLARE 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;
FETCH FROM complex_cursor;
UPDATE HumanResources.EmployeePayHistory
SET PayFrequency = 2
WHERE CURRENT OF complex_cursor;
CLOSE complex_cursor;
DEALLOCATE complex_cursor;
GO
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