>Hi,
>
>I wonder if someone could explain why when I execute the BACKUP command with the INIT, the resulting bak file is considerably smaller than with no parameter. Here are the syntax:
>
>backup database mydatabase to disk = N'j:\dell2013\sqlserverbackup\mydatabase.bak'
>
>The above one is about 3 times larger than:
>
>backup database mydatabase to disk = N'j:\dell2013\sqlserverbackup\mydatabase.bak' with INIT
>
>
>UPDATE: I am reading an article on SQL Server backup and the explanation of the WITH INIT is as follows:
>
>INIT is used to create a new backup set
>
>So, how is the NEW BACKUP SET (which I read as a total backup) much smaller than the FULL BACKUP (not WITH option)?
>
>TIA
I asked a DBA of a customer the same question (as above). And she gave me a answer basically copying a paragraph from a Google search. But she could not explain the reason for the backup file differences.
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