Bài tập 2 SQL server 2000

Bài tập 2 SQL Server 2000

Bài tập 2 SQL Server 2000
Bởi:
Khoa CNTT ĐHSP KT Hưng Yên
Manipulate Data and Stored Procedure
Please follow those steps to practise:
1. Use bcp to export all data from Orders table of PracticeDB to c:\Orders.txt (or
to c:\Orders.csv)
2. Change some data in the c:\Orders.txt and save. Then import to Orders table
from the text file using bcp
3. Import Orders.txt to Orders table using BULK INSERT
4. Create a Linked Server ‘LinkedPracticeDB’ which link to an Access database
‘PracticeDB.mdb’ (firstly you have to create an Access database similar to
PracticeDB in SQL Server and input some data). Then do a select data using
four-part name and OPENQUERY
5. Using ad hoc computer name with OPENROWSET and
OPENDATASOURCE functions to select data from ‘PracticeDB.mdb’
6. Create the following Cursor
DECLARE @au_lname varchar(40), @au_fname varchar(20)
DECLARE Employee_Cursor CURSOR FOR
SELECT LastName, FirstName FROM Northwind.dbo.Employees
OPEN Employee_Cursor
FETCH NEXT FROM Employee_Cursor INTO @au_lname, @au_fname
WHILE @@FETCH_STATUS = 0
BEGIN
PRINT 'Author:' + @au_fname + ' ' + @au_lname
FETCH NEXT FROM Employee_Cursor INTO @au_lname, @au_fname

1/4

Bài tập 2 SQL Server 2000

END
CLOSE Employee_Cursor
DEALLOCATE Employee_Cursor
1. Create the following stored procedure and try to execute with some values
CREATE PROCEDURE AddNewOrder
@OrderID smallint,
@ProductName varchar(50),
@CustomerName varchar(50),
@Result smallint=1 Output
AS
DECLARE @CustomerID smallint
BEGIN TRANSACTION
If
not
Exists(SELECT
[Name]=@CustomerName)

CustomerID

FROM

Customers

WHERE

BEGIN
SET @CustomerID= (SELECT Max(CustomerID) FROM Customers)

SET @CustomerID=@CustomerID+1
INSERT INTO Customers VALUES(@CustomerID,@CustomerName)
If Exists(SELECT OrderID FROM [Orders] WHERE OrderID=@OrderID)
BEGIN
SELECT @Result=1
ROLLBACK TRANSACTION
END

2/4


Bài tập 2 SQL Server 2000

Else
BEGIN
INSERT
INTO
[Orders](OrderID,ProductName,CustomerID)
VALUES(@OrderID,@ProductName,@CustomerID)
SELECT @Result=0
COMMIT TRANSACTION
END
END
Else
BEGIN
If Exists(SELECT OrderID FROM [Orders] WHERE OrderID=@OrderID)
BEGIN
SELECT @Result=1
ROLLBACK TRANSACTION
END

Else
BEGIN
INSERT
INTO
[Orders](OrderID,ProductName,CustomerID)
VALUES(@OrderID,@ProductName,@CustomerID)
SELECT @Result=0
COMMIT TRANSACTION
END
END

3/4


Bài tập 2 SQL Server 2000

Print @Result
Return
9. Using VB 6 or VB.NET to execute the ‘AddNewOrder’ stored procedure
10. Using xp_cmdshell extended stored procedure to send a message (xp_cmdshell ‘net
send Hello’)

4/4