sql MS SQL多语句表值函数

Posted 2021-05-13

CREATE FUNCTION dbo.GetAdventureBikes ()
RETURNS @Product TABLE (
  ProductID     INT,
  ProductName   NVARCHAR(50),
  ProductNumber NVARCHAR(25),
  SubCategory   NVARCHAR(50))
AS
  BEGIN
    INSERT @Product
      (ProductID,
       ProductName,
       ProductNumber,
       SubCategory)
    SELECT P.ProductID,
       P.Name   AS ProductName,
       P.ProductNumber,
       PSC.Name AS SubCategory
    FROM   Production.Product P
       INNER JOIN Production.ProductSubcategory PSC
         ON P.ProductSubcategoryID = PSC.ProductSubcategoryID
       INNER JOIN Production.ProductCategory PC
         ON PSC.ProductCategoryID = PC.ProductCategoryID
    WHERE  P.ProductSubcategoryID IS NOT NULL
    AND PC.ProductCategoryID = 1;
      
    INSERT @Product
       (ProductID,
       ProductName,
       ProductNumber,
       SubCategory)
    SELECT P.ProductID,
       P.Name   AS ProductName,
       P.ProductNumber,
       PSC.Name AS SubCategory
    FROM   Production.Product P
       INNER JOIN Production.ProductSubcategory PSC
       ON P.ProductSubcategoryID = PSC.ProductSubcategoryID
       INNER JOIN Production.ProductCategory PC
       ON PSC.ProductCategoryID = PC.ProductCategoryID
    WHERE  P.ProductSubcategoryID IS NOT NULL
    AND PC.ProductCategoryID = 3;

    RETURN
  END
-- EXECUTION
SELECT ProductName, 
       ProductNumber, 
       SubCategory  
FROM dbo.GetAdventureBikes();