在SQL Server中的视图内迭代-动态定位

-- 创建一个示例视图
CREATE VIEW ProductSales AS
SELECT ProductID, SUM(SalesAmount) AS TotalSales
FROM Sales
GROUP BY ProductID;

-- 使用临时表来存储视图的结果
DECLARE @TempTable TABLE (ProductID INT, TotalSales DECIMAL(10, 2));

INSERT INTO @TempTable
SELECT ProductID, TotalSales FROM ProductSales;

-- 迭代临时表
DECLARE @ProductID INT;
DECLARE @TotalSales DECIMAL(10, 2);

DECLARE cur CURSOR FOR SELECT ProductID, TotalSales FROM @TempTable;

OPEN cur;

FETCH NEXT FROM cur INTO @ProductID, @TotalSales;

WHILE @@FETCH_STATUS = 0
BEGIN
    -- 在这里处理每个产品ID和销售总额
    PRINT 'Product ID: ' + CAST(@ProductID AS VARCHAR) + ', Total Sales: ' + CAST(@TotalSales AS VARCHAR);
    
    FETCH NEXT FROM cur INTO @ProductID, @TotalSales;
END

CLOSE cur;
DEALLOCATE cur;