Adding sample for derived tables and views in graph match query feature

samples/features/sql-graph/DerivedTablesAndViewsInGraphMatch/DerivedTablesAndViewsInGraphMatch.sql

@@ -0,0 +1,90 @@
+drop view if exists OperatesIn, CUstomer, Novelty_supplier, Novelty_customer
+go
+
+----------------------------------------------------------------------------
+-- Querying heterogeneous edges
+----------------------------------------------------------------------------
+CREATE VIEW OperatesIn  AS 
+SELECT *, 'located' AS relation FROM locatedIn
+UNION ALL
+SELECT *, 'delivery' FROM deliveryIn
+GO
+
+SELECT SupplierID, SupplierName, PhoneNumber, relation
+  FROM Supplier,
+  City,
+  OperatesIn
+ WHERE MATCH(Supplier-(OperatesIn)->City)
+   AND City.CityName = 'San Francisco'
+
+----------------------------------------------------------------------------
+-- Querying heterogeneous nodes
+----------------------------------------------------------------------------
+
+CREATE VIEW Customer AS
+SELECT SupplierID AS ID, 
+  SupplierName AS NAME, 
+  SupplierCategory AS CATEGORY
+  FROM Supplier
+UNION ALL
+SELECT CustomerID, 
+  CustomerName, 
+  CustomerCategory
+  FROM Customers
+GO
+
+
+SELECT Customer.ID, Customer.NAME, Customer.CATEGORY
+  FROM Customer,
+  City,
+  locatedIn
+ WHERE MATCH(Customer-(locatedIn)->City)
+             AND City.CityName = 'San Francisco'
+ 
+ SELECT Customer.ID, Customer.NAME, Customer.CATEGORY
+  FROM Customer, 
+  City, 
+  OperatesIn
+ WHERE MATCH(Customer-(OperatesIn)->City)
+   AND City.CityName = 'San Francisco'
+
+
+----------------------------------------------------------------------------
+-- Querying heterogeneous nodes and edges
+----------------------------------------------------------------------------
+
+
+CREATE VIEW Novelty_Supplier AS
+SELECT SupplierID, 
+	SupplierName , 
+	SupplierCategory ,
+	ValidTo
+	FROM Supplier
+	WHERE SupplierCategory LIKE '%Novelty%' OR SupplierCategory LIKE '%Toy%'
+GO
+
+CREATE VIEW Novelty_Customer AS
+	SELECT CustomerID, 
+		CustomerName, 
+		CustomerCategory,
+		ValidTo
+	  FROM Customers
+	 WHERE CustomerCategory LIKE '%Novelty%' OR CustomerCategory LIKE '%Gift%' 
+GO
+
+SELECT Name, ID, Category
+  FROM 
+(SELECT SupplierID AS ID, SupplierName AS Name, 
+ SupplierCategory AS   Category, ValidTo 
+   FROM Novelty_Supplier WHERE ValidTo > getdate()
+UNION ALL
+ SELECT CustomerID, CustomerName, CustomerCategory, ValidTo 
+   FROM Novelty_Customer WHERE ValidTo > getdate()) AS NoveltyCust, 
+StockItems, 
+bought, 
+OperatesIn, 
+City
+ WHERE MATCH(City<-(OperatesIn)-NoveltyCust-(bought)->Stockitems)
+   AND StockItemName = 'White chocolate snow balls 250g'
+   AND city.cityname = 'San Francisco'
+GO