>Maybe because:
>a) It's more widespread than Oracle
>b) More developers knows SQL Server than Oracle
>c) More peoples hate MS than Oracle
>d) All of the above
>
>The same things can be said with viruses. Windows is more prone to attack than Mac OS because of it's widespread. Reverse the market and I'm pretty sure that there will be more Mac OS viruses than Windows viruses.
>
>>I am not stating that Oracle not vulnerable to attack but if it is as vulnerable as SQL Server then why do all the large-scale SQL injection attacks seem to happen to SQL Server?

1. Oracle is the number one database in use in the world. SQL Server is a
DISTANT third.
2. See number 1.
3. It would be a bigger coup to hack Oracle so why isn't being done?
4. None of the above in your list.