SQL Server: What is it?
How do I know if I have it?
Do I need it for databases?

The reason why Im asking is that I just bought the book ADO.net Step by Step and within the first two pages it says I need SQL Server to complete th excercises in this book. I think that SQL Server was on my comp at one time but its not anymore (or at least I counldnt find it).


Sorry very new at this and never heard of it before!

Any suggestions or comment wouyld be much appreciated!

Thanks in advance