如何使用存储过程将数据存储在临时表上？

Question

我想根据下面的标量函数编写一个存储过程，以显示每年和每个产品有多少客户？如果一个产品没有客户 那么它应该在客户数量为零的结果中，所以它应该显示所有的产品。然后我想将它插入临时表。这是我迄今为止所尝试的，但对于SP中的一些观点，我不知道我必须做些什么来获得我的结果。我想这死循环:( 任何想法？

中标量：

CREATE FUNCTION NumOfCustomers 
(
    @year INT, 
    @productId INT, 
    @typeOfCustomer NVARCHAR 
) 
RETURNS TABLE AS 
RETURN 
(
SELECT COUNT(DISTINCT Sales.Customer.CustomerID) AS number 

FROM Sales.SalesOrderDetail SOD 
     INNER JOIN Sales.SalesOrderHeader SOH ON SOD.SalesOrderID = SOH.SalesOrderID 
     INNER JOIN Sales.Customer ON Customer.CustomerID = SOH.CustomerID 

WHERE 
    SOD.ProductID = @productID 
    AND YEAR(SOH.OrderDate) = @year 
    AND Sales.Customer.CustomerType = @typeOfCustomer 
) 
GO 

存储过程：

CREATE PROCEDURE MYsp AS 
BEGIN 
    DECLARE @year INT, @count INT 
    DECLARE yearCursor CURSOR FOR 
    SELECT DISTINCT YEAR(SOH.OrderDate) FROM Sales.SalesOrderHeader SOH 
    --ORDER BY YEAR DESC 
    OPEN yearCursor 
    FETCH NEXT FROM yearCursor INTO @year 
    --** Starting the loop in curser and filling the data 
    SET @count = 1 
    WHILE(@@FETCH_STATUS = 0) 
    BEGIN 

      DECLARE @prodID INT 
      DECLARE @NumOfCustomers INT 
      DECLARE prodCursor CURSOR FOR 
      SELECT P.ProductID FROM Production.Product P 
      OPEN prodCursor 
      FETCH NEXT FROM prodCursor INTO @prodID 
      SET @count = 1 
      WHILE(@@FETCH_STATUS = 0) 
      BEGIN 
       SELECT @NumOfCustomers = NUM.number FROM NumOfCustomers(@year, @prodID, 's') NUM 
       INSERT #temp (Year,ProductID,NumOfCustomers) VALUES (@year,@prodID,@NumOfCustomers) 

       SET @count = @count+1 
       FETCH NEXT FROM prodCursor INTO @prodID 
      END 
      CLOSE prodCursor 
      DEALLOCATE prodCursor 

     FETCH NEXT FROM yearCursor INTO @year 
    END 
    CLOSE yearCursor 
    DEALLOCATE yearCursor 
END 
GO 

然后我要执行它，并从数据那个临时表：

EXEC MYsp 
SELECT * FROM #temp 

Answer 1

在程序中使用select语句：

CREATE PROCEDURE MYsp AS 
    BEGIN 
     DECLARE @year INT, @count INT 
     DECLARE yearCursor CURSOR FOR 
     SELECT DISTINCT YEAR(SOH.OrderDate) FROM Sales.SalesOrderHeader SOH 
     --ORDER BY YEAR DESC 
     OPEN yearCursor 
     FETCH NEXT FROM yearCursor INTO @year 
     --** Starting the loop in curser and filling the data 
     SET @count = 1 
     WHILE(@@FETCH_STATUS = 0) 
     BEGIN 

       DECLARE @prodID INT 
       DECLARE @NumOfCustomers INT 
       DECLARE prodCursor CURSOR FOR 
       SELECT P.ProductID FROM Production.Product P 
       OPEN prodCursor 
       FETCH NEXT FROM prodCursor INTO @prodID 
       SET @count = 1 
       WHILE(@@FETCH_STATUS = 0) 
       BEGIN 
        SELECT @NumOfCustomers = NUM.number FROM NumOfCustomers(@year, @prodID, 's') NUM 
        INSERT #temp (Year,ProductID,NumOfCustomers) VALUES (@year,@prodID,@NumOfCustomers) 

        SET @count = @count+1 
        FETCH NEXT FROM prodCursor INTO @prodID 
       END 
       CLOSE prodCursor 
       DEALLOCATE prodCursor 

      FETCH NEXT FROM yearCursor INTO @year 
     END 
     CLOSE yearCursor 
     DEALLOCATE yearCursor 
    Select * 
    from #temp 
    END 

GO 

现在执行的过程：

EXEC MYsp