Question : "Transaction Log Backup" - T-SQL commands help needed in SQL Server 2000 / 2005 / 2008  !

Hi,

I have the following table. I want a simple example on "TRANSACTION LOG BACKUP" how it works. Can you please provide me the T-SQL commands needed to achieve this ?


USE Sample
GO


-- Create a table


CREATE TABLE T
(
      X      int,
      Y      int
)
GO


-- Insert some data


INSERT INTO T VALUES (1, 20)
GO

INSERT INTO T VALUES (2, 30)
GO

INSERT INTO T VALUES (3, 40)
GO

INSERT INTO T VALUES (4, 50)
GO

INSERT INTO T VALUES (5, 60)
GO

INSERT INTO T VALUES (6, 70)
GO

INSERT INTO T VALUES (7, 80)
GO


I want to take Transaction Log Backup. Please provide me commands. I have the following command. I am not sure whether it is correct or not.


-- Backup transaction log


USE Master
GO

BACKUP LOG Sample TO DISK = 'D:\Sample_tran1.bak' WITH INIT  
GO

What does mean by INIT here ? Is it needed ? Also please provide me how to restore the transaction log using T-SQL commands.

INSERT INTO T VALUES (8, 90)
GO

INSERT INTO T VALUES (9, 100)
GO

Now i want to take the "Transaction Log Backup" here.


-- Backup transaction log


USE Master
GO

BACKUP LOG Sample TO DISK = 'D:\Sample_tran2.bak' WITH INIT  
GO

Appreciate your time and patience !

Thanks

Answer : "Transaction Log Backup" - T-SQL commands help needed in SQL Server 2000 / 2005 / 2008  !

why do you want to restore the log?
you can't restore a transaction log backup without restoring a full database backup first