Mega Code Archive
Create a view based on correlated subquery and then query it
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4> CREATE TABLE Orders (
5> OrderID int IDENTITY (1, 1) NOT NULL ,
6> CustomerID nchar (5) NULL ,
7> EmployeeID int NULL ,
8> OrderDate datetime NULL ,
9> RequiredDate datetime NULL ,
10> ShippedDate datetime NULL ,
11> ShipVia int NULL ,
12> Freight money NULL DEFAULT (0),
13> ShipName nvarchar (40) NULL ,
14> ShipAddress nvarchar (60) NULL ,
15> ShipCity nvarchar (15) NULL ,
16> ShipRegion nvarchar (15) NULL ,
17> ShipPostalCode nvarchar (10) NULL ,
18> ShipCountry nvarchar (15) NULL
19>
20>
21> )
22> GO
1>
2> CREATE TABLE Customers (
3> CustomerID nchar (5) NOT NULL ,
4> CompanyName nvarchar (40) NOT NULL ,
5> ContactName nvarchar (30) NULL ,
6> ContactTitle nvarchar (30) NULL ,
7> Address nvarchar (60) NULL ,
8> City nvarchar (15) NULL ,
9> Region nvarchar (15) NULL ,
10> PostalCode nvarchar (10) NULL ,
11> Country nvarchar (15) NULL ,
12> Phone nvarchar (24) NULL ,
13> Fax nvarchar (24) NULL
14> )
15> GO
1>
2> INSERT Customers VALUES('1','A','Maria', 'Sales', 'Str. 57', 'Berlin' ,NULL,'12209', 'Germany','111-1111111','111-1111111')
3> INSERT Customers VALUES('2','M','Joe', 'Owner', 'Ave. 231','Vancouver' ,NULL,'05023', 'Mexico', '(222) 222-3332',NULL)
4> INSERT Customers VALUES('3','H','Thomas', 'Sales', 'Sq. 111','London' ,NULL,'1D00P', 'UK', '(444) 444-4444','(444) 444-4444')
5> INSERT Customers VALUES('4','B','Berg', 'Order', 'Blv 8','Toronto' ,NULL,'00222', 'Sweden', '4444-55 55 65','5555-55 55 55')
6> INSERT Customers VALUES('5','S','Moos', 'Sales', 'Fort 57','New York' ,NULL,'68306', 'Germany','6666-66666','6666-77777')
7> INSERT Customers VALUES('6','F','Cite', 'Manager','24 ','Dalles' ,NULL,'67000', 'France', '88.60.15.31','88.60.15.32')
8> INSERT Customers VALUES('7','C','Sommer', 'Owner', 'Araq, 67','Paris' ,NULL,'28023', 'Spain', '(91) 555 22 82','(91) 555 91 99')
9> INSERT Customers VALUES('8','P','Leb', 'Owner', '12 ','Beijing' ,NULL,'13008', 'France', '91.24.45.40','91.24.45.41')
10> INSERT Customers VALUES('9','D','Elizabeth','Manager','23 Blvd.','Tsawassen','BC', 'T2F8M4','Canada', '(604) 555-4729','(604) 555-3745')
11> go
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
(1 rows affected)
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1>
2>
3> Create VIEW dbo.VCustsWithOrders
4> AS
5> SELECT TOP (100) PERCENT
6> Country, CustomerID, CompanyName, ContactName, ContactTitle,
7> Address, City, Region, PostalCode, Phone, Fax
8> FROM Customers AS C
9> WHERE EXISTS
10> (SELECT * FROM dbo.Orders AS O
11> WHERE O.CustomerID = C.CustomerID)
12> ORDER BY Country;
13> GO
1>
2> SELECT Country, CustomerID, CompanyName
3> FROM dbo.VCustsWithOrders;
4> GO
Country CustomerID CompanyName
--------------- ---------- ----------------------------------------
(0 rows affected)
1>
2>
3> drop VIEW dbo.VCustsWithOrders;
4> GO
1>
2> drop table orders;
3> drop table customers;
4> GO
1>
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